Bolthole Index

Santa Fe County, New Mexico

Building permits, zoning and land rules in Santa Fe County, New Mexico

44Index Score / 100
#13 of 33 in New Mexico

Unincorporated Santa Fe County, New Mexico requires a county development permit for building and development, while covered construction also needs state permits and inspections12. County zoning applies outside incorporated Santa Fe, Edgewood, and Espanola, but not on Pueblo lands3. The New Mexico Environment Department handles septic permits and inspections45.

At a glance

Development / building permit
County development approval is required; state inspectors handle major construction trades12
Zoning
County zoning applies outside Santa Fe, Edgewood, and Espanola, except Pueblo lands3
Septic permit
Required through the New Mexico Environment Department64
Owner-builder exemption
A state homeowner permit is available for an owner's primary residence, with strict limits7
Accessory dwelling unit / guest house
District-dependent, with size, design, driveway, utility, and height limits89
RV or temporary camping
Limited by zoning; general long-term private occupancy remains unconfirmed1011
Manufactured home
State installation approval plus county water, septic or sewer, and zoning requirements121314
Lot split or subdivision
County review applies; complex applications may require a public hearing1516

Who to call

Building permits

Santa Fe County Building and Development Services Division

Development and building permits, zoning determinations, floodplain and grading permits, and code enforcement for unincorporated Santa Fe County

(505) 986-6225

inspections@santafecountynm.gov

102 Grant Ave., Santa Fe, NM 87501

Septic permits

New Mexico Environment Department, Santa Fe Field Office (Liquid Waste Program)

On-site liquid waste (septic) permit applications and inspections for Santa Fe County under 20.7.3 NMAC

(505) 827-1840

santafe.ehb@env.nm.gov

2540 Camino Edward Ortiz, Santa Fe, NM 87507

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

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Do you need a building permit in Santa Fe County, New Mexico?

Yes. Building and development outside incorporated Santa Fe, Edgewood, and Espanola requires a Santa Fe County development permit, except on Pueblo lands1. The county requirement includes residential and commercial construction, additions, grading, subdividing lots, solar electric systems, and fences or walls over 6 feet15. Covered residential work also requires a state construction permit before work begins, subject to limited exceptions2. Every county application receives an initial Code Enforcement inspection and a County Fire inspection, and some applications also require pre-final or final inspections17. New Mexico's Construction Industries Division handles foundation, framing, electrical, and plumbing inspections17. Missing required inspections can delay a state Certificate of Occupancy or Certificate of Completion18.

Who is the Santa Fe County building department, and how do you reach them?

The Santa Fe County Building and Development Services Division handles county development permits, zoning determinations, grading, subdivisions, and lot splits in unincorporated Santa Fe County1915. The division is at 102 Grant Ave. in Santa Fe; call (505) 986-6225 or email inspections@santafecountynm.gov19. Before applying, verify the zoning district and legal-lot status, then use the applicable use table and county checklist20. Standard residential applications that need no public hearing have a 15-working-day review target, while some simpler permits may be expedited20. County fees vary by valuation and process, must be paid at submittal, and may be joined by fire or impact fees16. State construction-permit fees are separate and vary with the work21.

Does Santa Fe County have zoning?

Yes. Santa Fe County zoning covers the county-administered area outside incorporated Santa Fe, Edgewood, and Espanola, but not Pueblo lands3. Use the county's interactive map to search by owner name, address, or tax ID, then check the base district and any Community District overlay because overlay rules can add to or replace the standard rules22. Accessory dwellings are allowed in many but not all areas and must meet the applicable district, size, design, driveway, utility, and height rules89. The RUR-R Rural Residential district has a 24-foot maximum height, but that limit is district-specific and overlay or transfer-of-development-rights rules may alter it23. Minimum setbacks vary by district: Agriculture/Ranching requires 25 feet in front and 50 feet on each side and the rear, the RUR and RUR-F districts require 25 feet on every side, and RUR-R requires 20 feet in front and 25 feet at the sides and rear, though plats, overlays and fire-safety rules can add to these24. We could not confirm one countywide minimum dwelling size or minimum lot size; ask Building and Development Services for the standards attached to the parcel19.

How do septic permits work in Santa Fe County?

The New Mexico Environment Department, not Santa Fe County, reviews on-site liquid-waste applications and may approve, condition, or deny them4. Obtain the permit before installing or modifying a septic system6. Keep the system uncovered and request inspection 48 hours, or 2 business days, in advance; an approved inspection leads to a Permit to Operate5. Reach the Santa Fe field office at 2540 Camino Edward Ortiz, Santa Fe, NM 87507, phone (505) 827-1840, or email santafe.ehb@env.nm.gov25. Only 11.2% of county soils are rated without severe limits for a conventional drain field, so make septic feasibility an early contract contingency26. Santa Fe County requires authorization before developing a residential water-supply well, but we could not confirm the separate state well-permit rule or its exemptions27.

Can you live in an RV or tiny home on your land in Santa Fe County?

A tiny house on a permanent foundation can qualify as a dwelling under New Mexico's residential code, while a unit retaining its permanent axle is treated as an RV28. Santa Fe County zoning still controls where either form may go3. Some districts allow temporary living quarters under the camps and camping category, but a permit and sometimes conditional-use approval are required1011. We could not confirm a general right to occupy an RV long term; ask Building and Development Services before relying on one during construction. A short-term rental must have a county business license, and county caps and fees vary by occupancy type and location29. A tiny house used as a short-term rental must be legally permitted as a residence with cooking, sleeping, or sanitation facilities30. Manufactured-home placement requires state installation approval plus county proof of an approved well or water service and an approved septic permit or sewer service1214.

Building a home in Santa Fe County: the steps, in order

  1. Confirm county jurisdiction, legal-lot status, zoning, overlay rules, and allowed use with Building and Development Services2022.
  2. Test septic feasibility and obtain NMED approval; secure county authorization before developing a residential water-supply well627.
  3. Submit the county development-permit package and pay valuation- and process-based fees plus applicable fire or impact fees2016.
  4. If building your own primary residence, confirm eligibility for a state homeowner permit; it does not waive permits or inspections, and the owner must perform the major share of the work by dollar value7.
  5. Obtain a separate permit for access to a county road or a state access permit for a state highway3132.
  6. Complete county reviews and state construction inspections1733.
  7. Keep the septic system uncovered for inspection, then request every required final inspection518.

What to check before you buy land in Santa Fe County

Before closing, confirm whether the parcel is governed by the county, a municipality, or a Pueblo, then identify its base district and any overlay322. Confirm whether a lot split triggers subdivision review because subdividing land requires a county development permit in the county-administered area15. Make septic feasibility a contract contingency because only 11.2% of county soils are rated without severe limits for a conventional drain field26. Confirm legal access and the correct road authority before designing a driveway3132. In a mobile home park, the county specifies a 25-foot setback from a road or highway unless the zoning district requires more34. Ask whether slope, drainage, floodplain, or stormwater conditions require professionally sealed analysis35.

Watch-outs

  • A county development permit does not replace state construction permits or inspections12.
  • Santa Fe County's camping rule is district-specific and does not confirm a general right to live in an RV on private land11.
  • Do not cover a septic system before inspection; approval is required for a Permit to Operate5.

Sources

  1. Building and Development Services in Santa Fe County, quoted and re-checked
  2. Building Permit Guide for Residential Construction (New Mexico statewide rule), quoted and re-checked
  3. Building and Development Services in Santa Fe County, quoted and re-checked
  4. Apply for a Permit, quoted and re-checked
  5. Apply for a Permit, quoted and re-checked
  6. Apply for a Permit, quoted and re-checked
  7. 14.5.2 NMAC — Permits (New Mexico statewide rule), quoted and re-checked
  8. santafecountynm.gov, quoted and re-checked
  9. santafecountynm.gov, quoted and re-checked
  10. Short-Term Rental Frequently Asked Questions, quoted and re-checked
  11. santafecountynm.gov, quoted and re-checked
  12. 14.12.9 NMAC — Inspections (New Mexico statewide rule), quoted and re-checked
  13. santafecountynm.gov, quoted and re-checked
  14. Residential Development, quoted and re-checked
  15. Building and Development Services in Santa Fe County, quoted and re-checked
  16. Building and Development Services FAQ, quoted and re-checked
  17. Building and Development Services FAQ, quoted and re-checked
  18. Building and Development Services FAQ, quoted and re-checked
  19. Santa Fe County Building and Development Services Division (santafecountynm.gov)
  20. Building and Development Services FAQ, quoted and re-checked
  21. Construction Industries Forms and Applications Fees (New Mexico statewide rule), quoted and re-checked
  22. santafecountynm.gov, quoted and re-checked
  23. Santa Fe County, NM ZONING, quoted and re-checked
  24. Chapter 7: Sustainable Design Standards, quoted and re-checked
  25. New Mexico Environment Department, Santa Fe Field Office (Liquid Waste Program) (env.nm.gov)
  26. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  27. Residential Development, quoted and re-checked
  28. 14.7.3 NMAC — 2021 New Mexico Residential Building Code (New Mexico statewide rule), quoted and re-checked
  29. santafecountynm.gov, quoted and re-checked
  30. STR - FAQ, quoted and re-checked
  31. Building and Development Services FAQ, quoted and re-checked
  32. 18.31.6 NMAC (New Mexico statewide rule), quoted and re-checked
  33. Building Permit Guide for Residential Construction (New Mexico statewide rule), quoted and re-checked
  34. Chapter 10: Supplemental Zoning Standards, quoted and re-checked
  35. Building and Development Services FAQ, quoted and re-checked

Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Like all 6 of its neighbors, Santa Fe County requires a building permit for a home.

RuleSanta Fe CountyLos Alamos CountySandoval CountyBernalillo CountyTorrance CountyTaos CountyMora County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsNM Env. Dept.NM Env. Dept.NM Env. Dept.County Public WorksNMEDNM Env. Dept.NM Env. Dept.

County locator

Santa Fe County in New Mexico

44
County map
Santa Fe County highlighted among the New Mexico counties · colored by Index score

How Santa Fe County scores

Seclusion37100% ev.
Self-Sufficiency30100% ev.
Admin Boringness4090% ev.
Durability55100% ev.
Property Autonomy38100% ev.
Carry Cost74100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$561kTypical home
0.5%Property tax
$1,245Land / acre
14.8"Annual rain
43.6% of yrsSevere drought
1.8 / yr (+1.8)Mid-century 100°F days
28.1 daysMid-century dry spell
0.86" (+5.4%)Mid-century 1-day rain
1.27×Wildfire change factor
100%Forward climate coverage
$1,756Home insurance / yr
1.5% / yrInsurance growth
0.74%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
107,298People within 30 min
1,373,299People within 2 hr
24,511Radius comparison (15 mi)
81.6People / sq mi
25.7%Federal land
50.2%Land at 15% slope or less
11.2%Soils rated "not limited" for septic (strict USDA rating)
112,516 acWorkable land screen
28.8%Wooded land
12.7 tonsBiomass / forest ac
50°FAvg temp

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Cities and towns in Santa Fe County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Town of Edgewood · Santa Fe

Answers from the rulebook for Santa Fe County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Santa Fe County rules

  • Building permitRequired

    Building and development outside incorporated Santa Fe, Edgewood, and Espanola, excluding Pueblo lands.

    • The County page states the requirement does not apply to properties on Pueblo lands.
    • Incorporated municipalities may have separate permitting authorities.
    “All building and development in Santa Fe County [...] requires a development permit from the County.”
    One more reviewed finding on this topic
    • Required — Building and development outside incorporated Santa Fe, Edgewood, and Espanola, excluding Pueblo lands.
      “All building and development in Santa Fe County (outside of the incorporated areas of the cities of Santa Fe, Edgewood, and Espanola) must comply with the County’s Sustainable Land Development Code (SLDC) and requires a development permit from the County. This requirement does not apply to properties on Pueblo lands.”
  • Building code adoptedPartial

    County Fire Code review and county SLDC development review for new development.

    • Structural, electrical, plumbing, foundation, and framing inspections are conducted by the State Construction Industries Division according to the County FAQ.
    “compliance with the Santa Fe County Fire Code”
  • InspectionsRequired

    County development-permit applications and construction inspections in unincorporated Santa Fe County.

    • All applications receive an initial Code Enforcement inspection and County Fire inspection.
    • Certain applications require pre-final and/or final inspections.
    • Foundations, framing, electrical, and plumbing inspections are conducted by New Mexico CID.
    “All applications are sent to Code Enforcement for an initial inspection and are also inspected by County Fire. If during these inspections any Code violation is evident on your property, you will be required to address the violation before your permit is released. Certain types of applications require pre-final and/or final inspections.”
    One more reviewed finding on this topic
    • Limited — County and State CID inspections associated with development permits in unincorporated Santa Fe County.
      “Inspections for foundations, framing, electrical and plumbing are conducted by the State Construction Industries Division (CID).”
  • Certificate of occupancyLimited

    Certificate-of-occupancy process associated with inspected development in unincorporated Santa Fe County.

    • The County FAQ states that failure to request proper inspections delays receipt of the Certificate of Completion and Certificate of Occupancy from State CID.
    • The exact project classes requiring a certificate were not stated on the page.
    “It is the responsibility of the homeowner to assure that proper inspections are conducted; failure to ask for an inspection will delay the receipt of your Certificate of Completion and your Certificate of Occupancy from the Construction Industries Division.”
  • County-wide zoningPresent (with conditions)

    Land use and structures in the unincorporated area of Santa Fe County.

    • The County page states the requirement applies outside the incorporated areas of Santa Fe, Edgewood, and Espanola.
    • The requirement does not apply to properties on Pueblo lands.
    • Uses and development remain subject to district standards, overlays, permits, variances, and other SLDC approvals.
    “All land in the unincorporated area of the County to which this SLDC applies is located within a base zoning district or a planned development district, and may be additionally subject to an overlay zoning designation.”
    One more reviewed finding on this topic
    • Present (with conditions) — Building and land development outside incorporated Santa Fe, Edgewood, and Espanola and outside Pueblo lands.
      “All building and development in Santa Fe County (outside of the incorporated areas of the cities of Santa Fe, Edgewood, and Espanola) must comply with the County’s Sustainable Land Development Code (SLDC) and requires a development permit from the County. This requirement does not apply to properties on Pueblo lands.”
  • Local zoningVaries (with conditions)

    County aggregate of zoning controls: County SLDC applies in unincorporated areas, while incorporated municipalities and Pueblo lands are outside the cited County rule.

    • Municipal zoning may apply within incorporated Santa Fe, Edgewood, and Espanola.
    • The County page states the cited requirement does not apply to Pueblo lands.
    “All building and development in Santa Fe County (outside of the incorporated areas of the cities of Santa Fe, Edgewood, and Espanola) must comply with the County’s Sustainable Land Development Code (SLDC) and requires a development permit from the County.”
    One more reviewed finding on this topic
    • Present — County zoning and Sustainable Land Development Code requirements for land outside the incorporated areas of Santa Fe, Edgewood, and Espanola.
      “All building and development in Santa Fe County (outside of the incorporated areas of the cities of Santa Fe, Edgewood, and Espanola) must comply with the County’s Sustainable Land Development Code (SLDC) and requires a development permit from the County.”
  • Zoning districtsPublished (with conditions)

    County zoning districts and parcel-level zoning identification in unincorporated Santa Fe County.

    • The county adopted a zoning map in 2015.
    • The interactive map allows searches by owner name, address, or tax ID number.
    • Community District overlays may add or replace standard code regulations.
    “Santa Fe County adopted a zoning map in 2015. To find out what zoning district your property is located in you can refer to our interactive zoning map on our website and search your property by owner name, address, or tax ID number.”
    One more reviewed finding on this topic
    • Published (with conditions) — Santa Fe County SLDC zoning districts, zoning map, base-district standards, and Community District overlays.
      “Using the zoning map application is the simplest way to discover the zoning district, the allowed density, whether the lot is in a traditional community or overlay district, etc.”
  • Minimum lot sizeDistrict specific (with conditions)

    Individual lots in Santa Fe County Planned Development (PD) districts outside incorporated municipalities and Pueblo lands.

    • The PD district itself must be at least five acres.
    • A conceptual plan and any applicable rezoning request and preliminary subdivision plat are required with a PD creation application.
    • PD uses and density are controlled by the approved conceptual plan.
    • The PD base density is one dwelling unit per acre; densities above base density require Transfer of Development Rights under SLDC section 12.14.
    • Lots do not need to front onto a road, but perimeter lot setbacks and other applicable standards remain controlling.

    minimum area of individual PD lots: none (perimeter lot setbacks and other applicable SLDC/building-code requirements still apply) · minimum PD district size: >= 5 acres · PD base density: 1 dwelling unit per acre (higher density requires TDRs)

    “there is no minimum area requirement for lots”
  • SetbacksDistrict specific (with conditions)

    Structures and lots in Santa Fe County Planned Development (PD) districts outside incorporated municipalities and Pueblo lands.

    • County setback requirements vary by development type, zoning district, slope, overlay district, and Community Plan.
    • For PD districts, setbacks are governed by the approved PD conceptual plan and Chapter 7 Setback Table 7-A.
    • Perimeter PD lots must follow the base zoning district's minimum and maximum setbacks unless a lesser setback is approved in the master site plan.
    • Interior PD lots have no setbacks under the PD provision, provided the New Mexico Building Code requirements are met.
    • The PD district has a minimum district size of five acres.
    • County development-permit requirements apply outside incorporated Santa Fe, Edgewood, and Espanola, but not to Pueblo lands.

    PD setback from outside property boundary where no existing residential uses adjoin: 50 feet (PD Table 8-19) · PD setback from outside property boundary where existing residential uses adjoin: 100 feet (PD Table 8-19) · PD district minimum size: >= 5 acres · interior PD lot setback: none (New Mexico Building Code requirements still apply)

    “Maximum height requirements are generally described in Chapter 7 of the SLDC. They vary depending upon the nature of the proposed development, the zoning district, the slope of the adjacent terrain, and whether the property is in an overlay district or subject to a Community Plan. Minimum setback requirements for structures are also described in Chapter 7 and summarized in Table 7-A.”
    3 more reviewed findings on this topic
    • Specified — Mobile homes within Santa Fe County mobile home parks.
      “Not less than twenty (20) feet of clearance between mobile homes;”
    • District specific (with conditions) — Development in Santa Fe County zoning districts governed by SLDC Chapter 7, including residential, commercial, industrial, mixed-use, and public/institutional districts.
      “Agriculture/Ranching (A/R) | 25 | n/a | 50 | 50 [...] Mixed Use (MU) | 0 | n/a | 0* | 5”
    • District specific (with conditions) — Structure setbacks for development in unincorporated Santa Fe County.
      “Minimum setback requirements for structures are also described in Chapter 7 and summarized in Table 7-A.”
  • Building heightSpecified

    RUR-R Rural Residential zoning district under the Santa Fe County SLDC.

    • The cited table is district-specific and does not establish the height limit for other base districts or Community District overlays.
    • TDR certificates may permit increased building height subject to applicable program rules.

    maximum height: 24 feet (RUR-R district table; overlay and TDR exceptions may apply)

    “Table 8-8: Dimensional Standards - RUR-R (Rural Residential) Zoning District RUR-R Density (# of acres per dwelling unit) 10 Lot width (minimum, feet) 100 Lot width (maximum, feet) n/a Height (maximum, feet) 24”
  • Living in an RVLimited

    Use of RVs as temporary living quarters or short-term rentals in county-administered areas.

    • RVs are not generally eligible as STR dwellings under the county FAQ.
    • Some zoning districts allow temporary living quarters under Camps, Camping, and Related Establishments.
    • If allowed in the district, a permit application and sometimes a conditional-use application are required.
    “No, however some of the County’s zoning districts allow these temporary living quarters under the “Camps, Camping, and Related Establishments” category. If allowed in your district, the County’s approval process requires a permit application and sometimes a conditional use application.”
    One more reviewed finding on this topic
    • Limited — RVs used as temporary living quarters or short-term-rental structures in unincorporated Santa Fe County.
      “No, however some of the County’s zoning districts allow these temporary living quarters under the “Camps, Camping, and Related Establishments” category. If allowed in your district, the County’s approval process requires a permit application and sometimes a conditional use application.”
  • Camping on your landLimited

    Temporary camping and temporary living quarters in county-administered areas.

    • Some zoning districts allow temporary living quarters under Camps, Camping, and Related Establishments.
    • A permit application and sometimes a conditional-use application are required if allowed in the district.
    “No, however some of the County’s zoning districts allow these temporary living quarters under the “Camps, Camping, and Related Establishments” category. If allowed in your district, the County’s approval process requires a permit application and sometimes a conditional use application.”
    One more reviewed finding on this topic
    • Limited — Temporary living quarters and camping-related uses in unincorporated Santa Fe County.
      “No, however some of the County’s zoning districts allow these temporary living quarters under the “Camps, Camping, and Related Establishments” category. If allowed in your district, the County’s approval process requires a permit application and sometimes a conditional use application.”
  • Tiny homesAllowed (with conditions)

    Short-term rental use of a tiny house in unincorporated Santa Fe County.

    • The structure must be legally permitted as a residence.
    • The structure must include facilities for cooking, sleeping, or sanitation.
    • This claim addresses short-term-rental eligibility only and does not establish ordinary long-term tiny-home occupancy.
    • The County's STR rules otherwise apply, including licensing and applicable zoning requirements.
    “If a structure was legally permitted as a residence [...] then it can be an STR. These requirements also apply to [...] tiny houses”
  • Manufactured homesLimited

    Manufactured-home placement and occupancy in unincorporated Santa Fe County.

    • Placement approval requires an approved well permit or water-utility availability.
    • Placement approval requires an approved septic permit or proof of sewer service.
    • The County STR FAQ separately states that mobile homes may qualify as STRs only when legally permitted as residences with cooking, sleeping, or sanitation facilities.
    “For approval of placement of a manufactured home, it will be necessary to provide an approved well permit or water utility availability, an approved septic permit or proof of sewer service.”
  • Accessory dwellingsLimited

    Accessory dwelling units in county-administered unincorporated areas.

    • ADUs are allowed in many but not all areas and must comply with the applicable zoning district.
    • The ADU must be incidental and subordinate to the principal residence, not exceed 50% of the principal residence's heated floor area, be less than 1,400 square feet, share architectural style, be one story or less, and share driveway and utilities with the principal residence.

    maximum-heated-floor-area-share: <= 50 percent · maximum-floor-area: < 1400 square feet · maximum-height: one story

    “Accessory Dwelling Units are described in Section 10.4 of the SLDC and are generally allowed to be consistent with the requirements of the zoning district. Accessory dwelling units are integral or separate from the principal residence must be incidental and subordinate to the principal residence. They shall not exceed 50% of the heated floor area of the principal residence and must be less than 1.400 square feet.”
    One more reviewed finding on this topic
    • Limited — Accessory dwelling units or guesthouses in unincorporated Santa Fe County.
      “Accessory Dwelling Units (guesthouses) are allowed in many but not all areas of the County. To verify whether or not accessory dwelling units are allowed in your area you will need to refer to the Use Matrix in the SLDC specific to your area.”
  • Well permitRequired

    Development of a water-supply well for residential development in unincorporated Santa Fe County.

    • The County states that authorization to proceed is required before development of a water-supply well.
    • The County residential page also identifies an approved well permit or water-utility availability as required for manufactured-home placement.
    “Prior to development of a water supply well, authorization to proceed is required. A utility authorization permit packet is available here.”
  • Mandatory utility hookupConditional

    Residential manufactured-home placement and related residential development.

    • Manufactured-home placement requires an approved well permit or water-utility availability.
    • It also requires an approved septic permit or proof of sewer service.
    “For approval of placement of a manufactured home, it will be necessary to provide an approved well permit or water utility availability, an approved septic permit or proof of sewer service.”
    One more reviewed finding on this topic
    • Conditional — Placement of a manufactured home in unincorporated Santa Fe County.
      “For approval of placement of a manufactured home, it will be necessary to provide an approved well permit or water utility availability, an approved septic permit or proof of sewer service.”
  • Subdividing landRegulated (with conditions)

    Subdivision and lot-split activity in county-administered unincorporated areas.

    • Subdivision applications have fees based on valuation/process and may require public hearings and additional county review.
    • Subdividing lots is expressly included among activities requiring county development permits.
    “This includes residential or commercial construction or additions, grading of properties, subdividing lots, building a fence or wall over 6 feet high, installation of a solar electric system, etc.”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Subdivision and land-division activity in unincorporated Santa Fe County.
      “This includes residential or commercial construction or additions, grading of properties, subdividing lots, building a fence or wall over 6 feet high, installation of a solar electric system, etc.”
  • Driveway accessRequired

    Construction or reconstruction of roads and driveways and access to County roads.

    • A development permit is required for construction or reconstruction of a road or driveway.
    • A separate permit is required to access a County road.
    “For construction or reconstruction of a road or driveway pursuant to Chapter 7 of the SLDC (a separate permit is required to access a County road);”
  • Building in a floodplainLimited

    Development subject to Santa Fe County floodplain and stormwater requirements.

    • Certain slope and drainage analyses must be sealed by an engineer or licensed surveyor based on Code criteria and Ordinance 2008-10.
    • The County FAQ states that these requirements apply to certain applications; it does not establish a universal floodplain permit requirement for every parcel.
    “For development within a designated Special Flood Hazard Area (SFHA) pursuant to Chapter 7 of the SLDC;”
  • Short-term rentalsLimited

    Short-term rentals in county-administered areas.

    • All STRs require a county Business License.
    • STRs are allowed in zoning districts where residential uses are permitted.
    • Non-owner-occupied STRs have 3% or 7% limits in certain Census Designated Places; owner-occupied STRs are exempt from those caps.
    • The county publishes $375 non-owner-occupied and $35 owner-occupied fees.
    • STRs are dwellings rented for fewer than 30 consecutive days.

    non-owner-occupied-license-fee: 375 USD · owner-occupied-license-fee: 35 USD · non-owner-occupied-CDP-cap: 3% or 7% of homes (varies by Census Designated Place)

    “Short-Term Rentals (STRs) are any dwelling rented for fewer than 30 consecutive days. All STRs in Santa Fe County must have a Business License. Fees $375 – Non Owner-Occupied $35 – Owner-Occupied”
    One more reviewed finding on this topic
    • Limited — Short-term rentals of fewer than 30 consecutive days in Santa Fe County.
      “Yes, there are limits to the number of Non-Owner Occupied STRs in certain areas that are Census Designated Places (CDP). Depending on which area, either 3% of the total number of homes or 7% are allowed to be licensed as STRs.”
  • Permit feesPublished (with conditions)

    County development-permit fees and related Fire and Impact Fees.

    • Fees vary by project valuation and process type.
    • Subdivision fees are more expensive due to public hearings and added review.
    • Fire and Impact Fees are additional and based on structure size and type.
    • Fees must be paid at submittal.
    • The county identifies Ordinance 2016-8 as the fee source.
    “Permit fees are found in Ordinance 2016-8, which is available online at https://www.santafecountynm.gov/documents/ordinances/Ordinance_2016-8-p0001_-_p0005.pdf or in the Building and Development Services office. In addition to the permit fees there will also be Fire and Impact Fees. These are based on the size and type of structure being built. Fees must be paid at the time of submittal.”
    One more reviewed finding on this topic
    • Published (with conditions) — Santa Fe County development permit and review fees.
      “Permit fees are found in Ordinance 2016-8, which is available online at https://www.santafecountynm.gov/documents/ordinances/Ordinance_2016-8-p0001_-_p0005.pdf or in the Building and Development Services office.”
  • Permit processPublished (with conditions)

    Standard residential development-permit applications in unincorporated Santa Fe County.

    • The county provides standardized submittal checklists identifying required information and number of plan sets.
    • Standard residential applications without a public hearing have a stated fifteen-working-day standard timeframe.
    • Certain permits may be expedited to approximately five working days.

    standard-residential-processing-time: 15 working days (applications not requiring a public hearing)

    “For standard residential permit applications that do not require a public hearing, the standard time frame from start to completion is fifteen working days. Certain types of permits (walls, fences, solar panels, etc.) are expedited and you may receive a call that your permit is ready for pickup in as little as five working days.”
    One more reviewed finding on this topic
    • Published (with conditions) — County development-permit process in unincorporated Santa Fe County.
      “The proposed development must be allowed by the zoning of the property. Verify that the proposed development is allowed on your lot by checking its zoning.”

New Mexico rules that apply here

  • Owner-builder exemptionConditional

    A New Mexico property owner constructing or altering the owner’s single-family primary residence, including permitted appurtenant structures, under a homeowner’s permit.

    • The exemption is limited to construction or alteration of the owner’s primary residence; other use cancels the current permit and can result in denial of later homeowner permits.
    • The homeowner must comply with CILA, NMAC rules, applicable standards and codes, and may act as the general contractor only when the major portion of the work, based on dollar amount, is completed by the homeowner.
    • A permit is required for all construction-related work for which a permit is required by statute or rule; the rule does not exempt the owner-builder from state permitting or inspections.
    • Homeowner permits are limited to single-family dwellings and appurtenant structures such as private garages, carports and sheds, require proof of ownership, and are subject to AHJ approval.
    • The application requires an AHJ-approved application, signed and notarized responsibility sheet, acknowledgement of the homeowner-permit instructions, local zoning approval, floodplain determination, proof of identity and ownership, and payment of required fees.
    • Separate homeowner permits may be issued for general building construction, mechanical/plumbing and electrical work; each is limited to the primary residence and does not apply to rental property, other owned property, or commercial work or property.
    • The homeowner is responsible for requesting inspections, correcting code violations, and requesting re-inspections for a certificate of occupancy or final inspection. Subcontractors remain responsible for permits, inspections and corrections for plumbing, mechanical and electrical work they perform.
    • The homeowner may perform authorized work personally or with W-2 employees, or subcontract part of the work while self-performing a significant portion. Subcontracted work must be performed by licensed contractors who obtain their own permits and pass required inspections.
    • A homeowner permit is invalid for a project managed, supervised or acted on as general contractor by a GB-2 or GB-98 contractor; that contractor must obtain the appropriate permits and assumes responsibility for the site work.
    • Single-scope projects such as roofing or window installation are ineligible when subcontracted and not performed by the homeowner or valid W-2 employees.
    • Plumbing requires sufficient knowledge as determined by the TBC or CBO; a written examination with a minimum passing score of 75% may be required, failed examinations may not be repeated sooner than 30 days, and permitted plumbing work must be performed by the permittee.
    • Electrical work requires approved plans or drawings and a CID homeowner electrical exam with a minimum passing score of 75%; failed examinations may not be repeated sooner than 30 days, and permitted electrical work must be performed by the permittee.
    • A homeowner permit may not be issued for HVAC, natural gas or LP gas installations. HVAC and natural-gas work requires a properly licensed contractor and AHJ permitting and inspection; LP-gas work requires a properly licensed contractor and permitting and inspection through the LP gas trade bureau.
    • A homeowner-permit project may not be placed on the market for sale while under construction; doing so automatically voids the permit and may lead to unlicensed-contracting charges.
    • No more than one homeowner permit for a single-family dwelling may be issued to the same property owner within any 12-month period.
    • The cited rule section states an adoption/replacement date of March 10, 2022.

    homeowner electrical exam minimum passing score: >= 75 percent (Required after plan approval for issuance of a homeowner electrical permit.) · homeowner plumbing exam minimum passing score: >= 75 percent (The TBC or CBO may require the written examination.) · failed homeowner exam retest interval: >= 30 days (Failed plumbing and electrical examinations may not be repeated sooner.) · homeowner permits per single-family dwelling and property owner: <= 1 per 12 months

    “A homeowner permit allows homeowners to obtain permits for constructing or altering their primary residence without becoming a licensed contractor is strictly limited to construction and alteration of their primary residence. Any other use of a homeowner’s permit shall result in cancellation of the current homeowner permit and denial of any subsequent request for a homeowner permit. The homeowner licensing exemption requires conformity with CILA, its rules, standards and codes. This includes a homeowner acting as a general contractor for the project. The homeowner’s permit authorizes the homeowner to physically perform the work, alone or with legal employees, or act as a general contractor and subcontract portions of the work to licensed contractors. In order to qualify for the homeowner permit the major portion of the work to be performed, based on dollar amount, must be completed by the homeowner. A homeowner’s permit may only be issued to a property owner and only for the property owner’s primary residence occupied or intended to be occupied by the homeowner.”
    One more reviewed finding on this topic
    • Conditional — A homeowner constructing or altering the homeowner’s primary single-family residence in Santa Fe County, where the county or other applicable authority is the authority having jurisdiction.
      “A homeowner permit allows homeowners to obtain permits for constructing or altering their primary residence without becoming a licensed contractor is strictly limited to construction and alteration of their primary residence. [...] A homeowner’s permit may only be issued to a property owner and only for the property owner’s primary residence occupied or intended to be occupied by the homeowner.”
  • Who permits septicState

    On-site liquid waste systems and effluent receiving 5,000 gallons or less per day and not requiring a discharge plan or NPDES permit.

    • 20.7.3 NMAC identifies the New Mexico Environmental Improvement Board as the issuing agency and defines the department as the New Mexico Environment Department.
    • More stringent city or county requirements may also apply.

    maximum regulated flow: <= 5000 gallons per day (Systems requiring a discharge plan under 20.6.2 NMAC or an NPDES permit are outside this part.)

    “20.7.3.1 ISSUING AGENCY: New Mexico Environmental Improvement Board.”
    2 more reviewed findings on this topic
    • State (with conditions) — On-site liquid-waste systems in Santa Fe County.
      “Submit to Local NMED Field Office for review NMED will notify applicant of actions taken on the permit application. Actions may included granting the permit, granting with conditions, or denial.”
    • State (with conditions) — On-site septic and liquid-waste systems serving property in Santa Fe County.
      “NMED issues permits or registrations for septic systems through the NMED Liquid Waste Program.”
  • Septic permitRequired

    Installation or modification of a new or existing on-site liquid waste system, including residential or commercial units on lots for which such a system is required.

    • A permit issued by the New Mexico Environment Department, including payment of the permit fee, is required before construction or modification.
    • A permit is not required for graywater discharges or systems meeting 20.7.3.810 NMAC.
    • A dwelling may not be constructed, modified, or transported onto a lot requiring an on-site liquid waste system unless the department has issued the permit beforehand.
    • Other state, city, county, or federal approvals may also be required.
    • The department generally acts within 10 working days after a completed conventional-system application, subject to the rule's extension for potentially more stringent requirements.

    maximum regulated flow: <= 5000 gallons per day (20.7.3.2 NMAC scope limitation) · permit application completeness determination: 5 working days (Conventional systems) · conventional permit decision: 10 working days (After receipt of a completed application; review may extend to 20 working days when more stringent requirements may be necessary)

    “No person shall install or have installed a new on-site liquid waste system or modify or have modified an existing on-site liquid waste system, unless that person obtains a permit issued by the department, including payment of the permit fee, prior to construction of such installation or modification.”
    2 more reviewed findings on this topic
    • Required — On-site liquid-waste systems serving development in Santa Fe County.
      “Application – Print and fill out an Application for Liquid Waste Permit, Section 20.7.3.401 NMAC”
    • Required — Construction, modification, or registration of on-site liquid-waste systems in Santa Fe County.
      “Pay for Permit only after you are contacted by NMED to inform you that your permit was approved or approved with conditions. DO NOT SUBMIT PAYMENT BEFORE NOTICE OF APPROVAL.”
  • Septic inspectionLimited

    Property transfers involving property with an established on-site liquid waste system, subject to the applicable local exception for unincorporated Bernalillo County.

    • Before transfer, the transferor must have the established on-site liquid waste system evaluated.
    • The evaluation must be performed by an evaluator qualified under 20.7.3.904(B) using a department-approved form.
    • Unpermitted systems must be registered under 20.7.3.401(J) or permitted under 20.7.3.401(K).
    • Evaluators must submit copies of evaluation reports, whether completed or not, to the department within 15 days.
    • A permit or variance application must be submitted within 15 days of the evaluation to correct deficiencies or permit violations identified by the evaluation.
    • Advanced treatment systems and holding tanks have additional ownership-transfer, maintenance-contract, sampling, and permit-amendment requirements.
    • An inspection or evaluation performed within the prior 180 days may support an extension request if the permitted system has not been used since that inspection or evaluation.

    evaluation-report submission deadline: 15 days (Evaluators must submit copies of all reports, whether completed or not) · permit or variance application deadline after evaluation: 15 days (Applies when correcting deficiencies or permit violations identified by the evaluation) · possible evaluation extension lookback: 180 days (The system must not have been in use since the inspection or evaluation)

    “Prior to the transfer of a property with an established on-site liquid waste system, the transferor of the property shall have the system evaluated. Liquid waste systems shall be evaluated by an evaluator qualified in accordance with Subsection B of 20.7.3.904 NMAC utilizing a department approved form.”
    2 more reviewed findings on this topic
    • Required — Permitted onsite wastewater systems in Santa Fe County.
      “Request Inspection by NMED 48 hours (2 business days) in advance (DO NOT COVER BEFORE INSPECTION)”
    • Required — NMED inspection of on-site liquid-waste systems in Santa Fe County.
      “Request Inspection by NMED 48 hours (2 business days) in advance (DO NOT COVER BEFORE INSPECTION)”
  • Off-grid sanitationLimited

    Privies, permitted on-site liquid waste systems, and qualifying private residential graywater discharges statewide.

    • A privy may dispose of human excreta and toilet paper but not other liquid wastes.
    • Untreated liquid waste must go to a permitted and approved enclosed system, permitted and approved treatment unit, or public sewer, except qualifying graywater.
    • Graywater under 250 gallons per day may be used for household gardening, composting, or landscaping irrigation only if all listed conditions are met, including no runoff, no spraying, no watercourse discharge, floodway exclusion, five-foot groundwater separation, local ordinance compliance, 24-hour storage limit, and specified well setbacks.
    • Graywater use for purposes other than irrigation or composting requires a department permit.

    private residential graywater discharge: < 250 gallons per day (Qualifying graywater discharge under 20.7.3.810 NMAC) · graywater setback from private domestic well: >= 100 feet · graywater setback from public water supply well: >= 200 feet · graywater storage before discharge: <= 24 hours

    “A privy may be used for the disposal of human excreta and toilet paper, but not for the disposal of other liquid wastes.”
  • Agricultural exemptionConditional

    Statewide agricultural exemption from the New Mexico Subdivision Act for the sale, lease, or other conveyance of a parcel of at least 35 acres.

    • The parcel must be thirty-five acres or larger.
    • The conveyance must occur within a twelve-month period covered by the statutory exception.
    • The land must have been used primarily and continuously for agricultural purposes, in accordance with Section 7-36-20 NMSA 1978, for the preceding three years.

    minimum parcel size: >= 35 acres · agricultural use duration: >= 3 years (land must have been used primarily and continuously for agricultural purposes in accordance with Section 7-36-20 NMSA 1978) · conveyance period: 12 months (within any twelve-month period)

    “the sale, lease or other conveyance of any parcel that is thirty-five acres or larger in size within any twelve-month period; provided that the land has been used primarily and continuously for agricultural purposes, in accordance with Section 7-36-20 NMSA 1978, for the preceding three years;”
    2 more reviewed findings on this topic
    • Conditional — New Mexico contractor licensing requirements for earthmoving, excavating, and ditching activities used in preparation or production of agriculture or maintenance of livestock on a farm or ranch.
      “earthmoving, excavating and ditching activities applicable to the preparation and production of agriculture or maintenance of livestock on a farm or ranch are exempt from licensing requirements.”
    • Conditional — Agricultural land divisions and conveyances that would otherwise fall within the New Mexico Subdivision Act definition.
      “provided that the land has been used primarily and continuously for agricultural purposes, in accordance with Section 7-36-20 NMSA 1978”
  • county zoning authorityGeneral

    New Mexico counties adopting zoning for all or part of unincorporated territory outside municipal zoning jurisdiction.

    • A county zoning ordinance may apply only to territory not within the zoning jurisdiction of a municipality.
    • Municipalities may have concurrent extraterritorial zoning authority in specified areas, including areas near municipalities meeting statutory population thresholds and additional contiguous territory placed under municipal extraterritorial jurisdiction by county-municipal agreement.
    • Concurrent extraterritorial authority is exercised under an extraterritorial zoning authority or joint powers agreement and may be exercised regardless of whether the county has enacted a comprehensive zoning ordinance.
    • If no county zoning ordinance exists, qualified electors may petition for adoption; the petition must equal at least twenty-five percent of the votes cast for governor at the last preceding general election, and the board of county commissioners must adopt a county zoning ordinance within one year.

    minimum petition threshold: >= 25 percent of votes cast for governor at the last preceding general election · county ordinance adoption deadline after qualifying petition: 1 year

    “a county zoning authority may adopt a zoning ordinance applicable to all or any portion of the territory within the county that is not within the zoning jurisdiction of a municipality;”
    One more reviewed finding on this topic
    • General — New Mexico counties may adopt zoning ordinances for all or any portion of county territory that is not within a municipality's zoning jurisdiction.
      “A.  a county zoning authority may adopt a zoning ordinance applicable to all or any portion of the territory within the county that is not within the zoning jurisdiction of a municipality;”
  • county building authorityGeneral

    New Mexico counties that establish and maintain a building department for permitting and inspections of general construction, mechanical-plumbing, and electrical work, including residential construction in unincorporated areas.

    • CID retains statewide permitting and inspection authority unless a county, municipality, or political subdivision has a current building department providing permitting and inspections.
    • To establish and maintain a building department, the county must establish a full-service building department covering general construction, mechanical-plumbing, and electrical trades; employ a full-time certified building official; and employ sufficient CID-certified inspectors for each trade.
    • The county authority does not include liquefied petroleum work, over which CID has exclusive authority.
    • CID conducts all inspections if the county lacks a certified building official.
    • If the certified building official leaves, plan review, permitting, and inspections transfer to the state unless the county replaces the official within 60 days or a longer period approved by the division, or enters a memorandum of understanding with another county, municipality, or political subdivision.

    replacement period for certified building official: 60 days (A longer period may be approved by the division.)

    “In order to establish and maintain a building department allowing permitting and inspections the county, municipality or political subdivision must establish a full-service building department including general construction, mechanical-plumbing and electrical trades, must employ a full-time certified building official and employ sufficient CID certified inspectors to inspect for each trade.”
    One more reviewed finding on this topic
    • Limited — New Mexico counties that qualify as an authority having jurisdiction may administer permitting, inspection, and enforcement for residential construction in unincorporated areas and enforce applicable New Mexico construction codes.
      ““Authority having jurisdiction” “AHJ” means the state or a municipality, county or other political subdivision that has a full-service building department employing a full-time certified building official and has permitting, inspection and enforcement authority over the general construction, electrical and mechanical-plumbing trades within its jurisdiction.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Minimum dwelling size — Minimum dwelling size in unincorporated Santa Fe County.
  • Lot coverage — Lot coverage in unincorporated Santa Fe County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Santa Fe County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from New Mexico’s water agency.

Over-appropriated / declining

The aquifer here is over-appropriated and declining. A domestic well is usually still permit-exempt, but long-term supply is a genuine risk.

Household wellPermit required (issued by right)

Nearly all developed New Mexico lies inside an OSE 'declared' underground water basin, but a household 72-12-1.1 domestic well is a by-right permit the State Engineer issues even in closed/over-appropriated basins (metering can be required). The by-right amount is cut to 0.25 acre-ft/yr in a declared Domestic Well Management Area, and a few basin-specific orders cap it further (Gallup Order 197, Zuni Order 199) or stop issuing new domestic permits entirely (Hot Springs Order 198).

Limit: 1 acre-ft/yr by right (NMSA 72-12-1.1); 0.25 acre-ft/yr in a declared Domestic Well Management Area

NM OSE domestic well rules, 19.27.5 NMAC ↗
  • Estancia Basinpartial of county

    Valley-fill declines up to ~5 ft/yr with multiple Critical Management Areas; new non-domestic appropriations are rejected and rights cannot be moved into a CMA. A 72-12-1.1 household domestic well is still issued under the statewide rules and basin drawdown limits.

    NM OSE Estancia Basin Guidelines (2021) ↗

Prior-appropriation state (first in time, first in right). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the New Mexico state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Santa Fe County, New Mexico

Is Santa Fe County a good place to live off-grid or homestead?

Santa Fe County scores 44/100 on the Bolthole Index, a marginal county profile. Its strengths: manageable long-term carry cost. Watch-outs: weak self-sufficiency basics: only 14.8″ of rain a year, in severe drought 43.6% of years and about 107,298 people within a 30-minute drive.

Do you need a building permit in Santa Fe County, New Mexico?

Santa Fe County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by New Mexico Environment Department — Liquid Waste Program. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Santa Fe County?

Living in an RV on your own land in Santa Fe County is limited to specific cases: Use of RVs as temporary living quarters or short-term rentals in county-administered areas. RVs are not generally eligible as STR dwellings under the county FAQ. Some zoning districts allow temporary living quarters under Camps, Camping, and Related Establishments. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Santa Fe County, New Mexico?

Land in Santa Fe County runs about $1,245 per acre, based on the latest county data.

What is the water situation in Santa Fe County?

Santa Fe County gets about 14.8" of rain a year, with severe drought in roughly 43.6% of years. On water rights, Santa Fe County lies in the Estancia Basin — Valley-fill declines up to ~5 ft/yr with multiple Critical Management Areas; new non-domestic appropriations are rejected and rights cannot be moved into a CMA. A 72-12-1.1 household domestic well is still issued under the statewide rules and basin drawdown limits..

How remote is Santa Fe County?

A representative private-land location has about 107,298 people within a 30-minute drive and 1,373,299 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How Santa Fe compares in New Mexico

Compare side-by-side →See all 33 New Mexico counties ranked →