Bolthole Index

Denver County, Colorado

Building permits, zoning and land rules in Denver County, Colorado

38Index Score / 100
#61 of 64 in Colorado

Denver County, Colorado requires building permits for most construction, alteration and repair work on private property1. Denver is a consolidated city and county, so Denver Community Planning & Development issues building permits and administers zoning for the whole county; the Denver Zoning Code governs most parcels and Former Chapter 59 covers about 17% of the city2. Septic permits come from Denver's public health department, and new septic systems are generally prohibited3.

At a glance

Building permit
Required for most construction, alteration or repair work1
Zoning
Countywide; the applicable code and district depend on the parcel24
Septic (OWTS) permit
Required from Denver's public health department; new systems are generally prohibited35
Owner-builder exemption
Yes, for a resident owner's single-family home; once every five years6
Tiny home (CO Division of Housing)
Approved statewide for long-term living once state-certified, subject to local zoning7
Accessory dwelling units
Allowed where the zone district permits, with use and ownership conditions8
Water well
State well permit required for any new groundwater well statewide9

Who to call

Building permits

Denver Community Planning & Development (CPD) – Detached Homes and Duplexes

Building permits, plan review and inspections for detached single-family homes and duplexes in Denver

720-865-2710

ResidentialPermits@denvergov.org

201 W. Colfax Ave., Dept. 205, Denver, CO 80202 (2nd floor of the Webb Municipal Building)

Zoning

Denver Community Planning & Development (CPD) – Zoning Administration

Zone lot amendments, zoning administrative adjustments and variance requests for single-family and duplex projects in Denver

720-865-2606

ZoningAdministration@denvergov.org

201 W. Colfax Ave., Dept. 205, Denver, CO 80202 (2nd floor of the Webb Municipal Building)

Health department

Denver Department of Public Health & Environment (DDPHE)

Denver's local public health agency, which permits any on-site wastewater treatment system (OWTS) under Colorado's statewide rules

720-865-5484

DDPHEinformation@Denvergov.org

201 W. Colfax Ave., 8th Floor, Denver, CO 80202

Contact details are copied from each office’s official page and were checked against it on October 16, 2026.

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Do you need a building permit in Denver County, Colorado?

Yes. Denver County requires permits for most construction, alteration or repair work on private property1. Exempt finish work includes painting, papering, tiling, floor coverings, cabinets and like-for-like plumbing fixtures, but a zoning, wastewater or fire permit may still be needed even when no building permit is required10. Building work follows the 2025 Denver Building and Fire Codes, which incorporate the 2024 International Codes11. A certificate of occupancy is required for new one-family and two-family dwellings and other listed new or changed occupancies, with exceptions for detached private garages and non-habitable accessory structures12. Permitted work must remain accessible for Denver's inspections until approved; the required inspections depend on the project and trades involved13. An owner-occupier may pull a permit for a primary one-family dwelling, but not for a duplex, townhome, condo, apartment, commercial building or accessory dwelling; the owner must pass applicable trade exams and occupy the home for at least 12 months after the certificate of occupancy, and a new single-family home permit is available only once in any five-year period146. Permits cannot be issued to trusts, LLCs or corporations6.

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

Denver Community Planning & Development (CPD) is the building department. Its line for detached homes and duplexes is 720-865-2710, and its office is on the second floor of the Webb Municipal Building at 201 W. Colfax Ave.15. For zoning interpretations, zone-lot amendments or variances involving a single-family or duplex project, contact CPD's Zoning Administration team at 720-865-260616. Residential applicants use Denver's e-permits system, select Development Services and then Building Log for most projects, and upload the required documents; quick permits exist only for eligible work and are issued without plan review, and the sewer-use-and-drainage review starts automatically with the building-permit application1718. Denver publishes building and land-development fee schedules because charges vary by permit and project; plan review is charged separately from the permit, and re-inspections can add a fee1920.

Does Denver County have zoning?

Yes. Zoning applies across the consolidated City and County of Denver, so there is no separate unincorporated area with different zoning rules2. The Denver Zoning Code governs most properties, but Former Chapter 59 covers about 17% of the city, and site-specific PUDs, waivers or conditions can change the answer for a particular lot4. City staff review zoning-permit applications against the Denver Zoning Code, and some applications require public notice or Board of Adjustment review21. Setbacks, lot coverage, building height and minimum lot size therefore cannot be answered from the county name alone; ask CPD's Zoning Administration team to identify the controlling district and restrictions16. Denver allows one accessory dwelling unit for each primary dwelling unit where the zone district permits it, but an RV, mobile home or trailer cannot serve as the ADU8. Subdivision of land falls under Chapter 50 of the Denver Revised Municipal Code, and a zone lot can differ from the recorded subdivision lot and assessor's tax parcel, so confirm all three before assuming a parcel can be split or developed as shown on a listing2223.

How do septic (OWTS) permits work in Denver County?

Denver is largely served by public sewer, and new private on-site wastewater treatment systems (OWTS, what most people call septic) are generally prohibited inside Denver, with exceptions only for qualifying business, commercial, industrial or institutional uses or a granted variance3. Denver's Department of Public Health & Environment is the local agency that administers the rules, and the state Water Quality Control Division keeps authority to enforce Regulation 43 where needed5. A permit is required to operate an existing OWTS, to build a new one or to repair one3. No permit can be issued where the property abuts a street or alley with a city public sewer, for a new system serving a multifamily dwelling, or for a new system in a designated 100-year floodplain3. Every new system needs a final inspection by the department before use, though Denver requires no septic inspection when a property is sold24. Homeowners converting from septic to the sanitary sewer pay a $100 application fee plus separate sewer tap fees25. Colorado also conditions a building or occupancy permit on public sewer service or an approved OWTS process26. Call the department at 720-865-5484; septic permits do not come from the building or zoning staff at Community Planning & Development27.

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

A Colorado-regulated tiny home may be approved for long-term living after the Colorado Division of Housing approves its plans, but it must also satisfy Denver zoning for the installation site7. Denver permits ADUs only where the zone district allows them, and an RV, mobile home or trailer cannot be used as an ADU8. We could not confirm a general Denver rule allowing long-term residence in an ordinary RV on a residential lot, so ask CPD's Zoning Administration team before relying on one as housing16. An RV or travel trailer also cannot be used for a Denver short-term rental; a permitted short-term rental must operate in a dwelling unit and generally be run by someone whose primary residence is the primary dwelling or an ADU on the same zone lot28.

Building or adding a home on a Denver lot: the steps, in order

  1. Ask CPD's Zoning Administration team which zoning code, district and site-specific conditions control the lot416.
  2. Confirm that the proposed structure, ADU and zone lot comply, and resolve any subdivision or zone-lot issue before design822.
  3. Check the regulatory floodplain map; any construction in Zones A, AE, AH or AO, even an interior remodel, needs a floodplain permit through the sewer-use-and-drainage review, and a final floodplain inspection must pass before a certificate of occupancy is requested2930.
  4. Create an e-permits account, choose Development Services and Building Log for most projects, then upload the required documents17.
  5. Use Denver's project-specific fee schedules and budget separately for plan review, the permit and any re-inspection; beginning work without a permit doubles the permit charge, subject to a $100 minimum and the stated emergency exception1920.
  6. Keep permitted work exposed and accessible until Denver completes the required project and trade inspections13.

What to check before you buy land in Denver County, Colorado

Confirm the exact zoning code, district and any site-specific conditions before making an offer; the Denver Zoning Code governs most parcels, while Former Chapter 59 and special approvals govern others4. Compare the legal subdivision description, zone lot and assessor's parcel because they may not match22. Check for a regulatory floodplain: any construction there, including an interior remodel, needs a floodplain permit, most floodway construction is prohibited, and residential floors must sit at least 18 inches above base flood elevation29. Do not count on a septic system: Denver generally prohibits new ones, and an existing system needs its own operating permit from Denver's public health department327. Finally, budget for project-specific permit charges, separate plan-review and possible re-inspection charges, and an effective property-tax rate of about 0.4% with a median annual bill near $2,59619203132.

Watch-outs

  • This guide could not confirm a Denver-specific rule on living long-term in an ordinary RV on a residential lot; ask CPD's Zoning Administration team before you rely on one16.
  • A Denver zone lot may not match the recorded subdivision lot or tax parcel; confirm the legal development unit before relying on a listing's boundaries or split potential33.
  • A property that abuts a street or alley with a city sewer cannot get a septic permit, and a septic system in a 100-year floodplain cannot be newly permitted3.

Sources

  1. Plan Review, Permits, and Inspections, quoted and re-checked
  2. Regulations, Codes and Standards, quoted and re-checked
  3. Rules & Regulations Governing On-site Wastewater Treatment Systems, quoted and re-checked
  4. Regulations, Codes and Standards, quoted and re-checked
  5. Rules & Regulations Governing On-site Wastewater Treatment Systems, quoted and re-checked
  6. Applying for Permits as a Homeowner — General Rules, quoted and re-checked
  7. Consumers of Manufactured Homes and Tiny Homes - HUD (Colorado statewide rule), quoted and re-checked
  8. Denver Zoning Code Article 11: Use Limitations and Definitions, quoted and re-checked
  9. Water Administration (Colorado statewide rule), quoted and re-checked
  10. Plan Review, Permits, and Inspections, quoted and re-checked
  11. Building and Fire Codes, quoted and re-checked
  12. 2022 Denver Building and Fire Code, Certificate of Occupancy provisions, quoted and re-checked
  13. Plan Review, Permits, and Inspections, quoted and re-checked
  14. ADMIN 131.4 - Homeowner permits, quoted and re-checked
  15. Denver Community Planning & Development (CPD) – Detached Homes and Duplexes (denvergov.org)
  16. Denver Community Planning & Development (CPD) – Zoning Administration (denvergov.org)
  17. Applying for Permits as a Homeowner — Application Process, quoted and re-checked
  18. Applying for Permits as a Homeowner, quoted and re-checked
  19. Plan Review, Permits, and Inspections, quoted and re-checked
  20. 2025 Denver Building & Fire Code, quoted and re-checked
  21. Regulations, Codes and Standards, quoted and re-checked
  22. Regulations, Codes and Standards — Subdivision and Flood Information, quoted and re-checked
  23. Regulations, Codes and Standards, quoted and re-checked
  24. Rules & Regulations Governing On-site Wastewater Treatment Systems, quoted and re-checked
  25. Plan Review, Permits, and Inspections, quoted and re-checked
  26. Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
  27. Denver Department of Public Health & Environment (DDPHE) (denvergov.org)
  28. Denver Zoning Code Article 11: Use Limitations and Definitions, quoted and re-checked
  29. Floodplain Permit Submittal Requirements, quoted and re-checked
  30. Regulations, Codes and Standards — Subdivision and Flood Information, quoted and re-checked
  31. Effective property tax rate: Bolthole Index county data
  32. Median property tax bill: Bolthole Index county data
  33. Regulations, Codes and Standards — Subdivision, quoted and re-checked

Written October 16, 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, Denver County requires a building permit for a home.

RuleDenver CountyBroomfield CountyJefferson CountyDouglas CountyGilpin CountyBoulder CountyArapahoe County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsDenver Dept. of Public Health & Env.Broomfield Health Protection Div.County Public HealthCounty Health Dept.County Community DevelopmentCounty Public HealthCounty Public Health

County locator

Denver County in Colorado

38
County map
Denver County highlighted among the Colorado counties · colored by Index score

How Denver County scores

Seclusion11100% ev.
Self-Sufficiency5598% ev.
Admin Boringness46100% ev.
Durability74100% ev.
Property Autonomy75100% ev.
Carry Cost36100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$546kTypical home
0.4%Property tax
$122,408Land / acre
15.1"Annual rain
13.5% of yrsSevere drought
6.9 / yr (+6.6)Mid-century 100°F days
21.4 daysMid-century dry spell
1.29" (+6.5%)Mid-century 1-day rain
1.31×Wildfire change factor
100%Forward climate coverage
$2,916Home insurance / yr
4.2% / yrInsurance growth
1.02%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
2,791,282People within 30 min
5,298,052People within 2 hr
2,102,048Radius comparison (15 mi)
4,681.2People / sq mi
0.3%Federal land
96%Land at 15% slope or less
32.6%Soils rated "not limited" for septic (strict USDA rating)
18,188 acWorkable land screen
74.5 tonsBiomass / forest ac
51.1°FAvg temp

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Cities and towns in Denver 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.

Answers from the rulebook for Denver County

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

Denver County rules

  • Building permitRequired

    Most construction, alteration, or repair work on private property in Denver County.

    • Most home construction or repair projects on single-family and duplex structures require a permit.
    • Painting, papering, tiling, floor coverings, refinishing wood floors, countertops, carpeting, cabinets, curtains, drapes, like-for-like plumbing fixtures, certain general repairs, limited drywall patching, and certain entertainment centers/bookcases are listed as work not requiring a building permit.
    • A wastewater, zoning, or fire permit may still be required even when a building permit is not.
    “Permits are required for most construction, alteration, or repair work on private property.”
    2 more reviewed findings on this topic
    • Required — Most construction, alteration, or repair work on private property and most home construction or repair projects on single-family and duplex structures in Denver.
      “Permits are required for most construction, alteration, or repair work on private property.”
    • Required — Construction, alteration, or repair work on private property in Denver.
      “Permits are required for most construction, alteration, or repair work on private property.”
  • Owner-builder exemptionAvailable (with conditions)

    Owner-occupier permits for a primary one-family dwelling in Denver.

    • The owner must own and occupy the dwelling, or agree to do so upon completion, and continue to own and occupy it for at least 12 months after issuance of the certificate of occupancy.
    • The work cannot be for a duplex, townhouse, condominium, apartment, commercial building, or accessory dwelling.
    • The permit is available only once within any five-year period.
    • Applicable electrical, plumbing, mechanical, and HVAC exams must be passed.
    • A valid Colorado photo ID or driver’s license matching Denver property records is required.
    • The owner-occupier or legally authorized agent cannot obtain the permit online.

    owner occupancy after certificate of occupancy: 12 months · homeowner permit frequency: per 5 years (one permit at one address in the five-year period)

    “I own and occupy the one-family dwelling, or I agree to do so upon completion and issuance of the certificate of occupancy, and I will continue to own and occupy it for at least 12 months after the certificate of occupancy is issued.”
    One more reviewed finding on this topic
    • Available (with conditions) — Owner-residents applying for permits for single-family homes, which may include a garage.
      “Owners of single-family homes in Denver have the option of applying for residential permits without a contractor.”
  • Building code adoptedAdopted (with conditions)

    Building construction in Denver County, administered by the City and County of Denver through its Denver Building and Fire Codes.

    • The 2025 Denver Building and Fire Codes incorporate the 2024 International Codes, except the Energy Code, which incorporates the 2021 International Energy Conservation Code.
    • Updates resulting in the second printing were adopted on November 24, 2025.
    • The Denver Building and Fire Code establishes minimum mandatory standards for building construction in Denver.
    • Denver also adopts and enforces the 2026 edition of the National Electrical Code/NFPA 70, adopted unamended and stated to be the same as the Electrical Code adopted by Colorado.

    Denver Building and Fire Code edition: 2025, second printing · incorporated International Code editions: 2024 I-Codes (Energy Code incorporates the 2021 IECC) · adoption date: 2025-06-13 · second-printing update adoption date: 2025-11-24 · effective date: 2025-12-31

    “On June 13, 2025, the City and County of Denver adopted the 2025 Denver Building and Fire Codes, which incorporate the 2024 I-codes (except the Energy Code, which incorporates the 2021 IECC). Updates to these codes resulting in the second printing were adopted on November 24, 2025.”
  • InspectionsRequired

    Building projects subject to Denver building permitting and inspection review.

    • Inspection requirements vary by project and trade; the official page identifies zoning, construction, electrical, mechanical, plumbing, and roofing inspections.
    “All work for which a permit is required shall be subject to inspection by the Agency and all such work shall remain accessible and exposed for inspection until approved by the Agency.”
  • Certificate of occupancyRequired

    New buildings and specified new or changed occupancies in Denver County.

    • Detached private garages with Group U occupancy and Denver Residential Code non-habitable accessory structures are exceptions.
    • A certificate of occupancy is required for new IRC structures or a change of occupancy resulting in a change in use for listed residential and related uses, including one-family dwellings, two-family dwellings, townhouses, congregate living facilities, lodging houses, care facilities, live/work units, and family child-care homes providing care for 6 or more children.
    • Temporary certificates may be issued under separate conditions.
    “New buildings except Group U occupancy detached private garages and Denver Residential Code non-habitable accessory structures shall not be used or occupied in whole or in part until a Certificate of Occupancy is issued by the building official.”
  • County-wide zoningPresent

    Denver County, administered through the City and County of Denver zoning framework.

    • Denver has two zoning codes.
    • The Denver Zoning Code applies to the majority of the city; Former Chapter 59 covers approximately 17% of the City where site-specific zoning, PUDs, waivers, conditions, or PBGs apply.
    “Denver has two zoning codes which implement the community's vision for the future of Denver through our built environment. The Denver Zoning Code was adopted in 2010 and applies to the majority of the city.”
    2 more reviewed findings on this topic
    • Present (with conditions) — The consolidated City and County of Denver, including the countywide Denver jurisdiction.
      “Use the information below to access commonly referenced regulations, codes, and standards that apply to private development in the City and County of Denver.”
    • Present (with conditions) — Zoning regulation administered by the consolidated City and County of Denver throughout Denver County.
      “Denver has two zoning codes which implement the community's vision for the future of Denver through our built environment. The Denver Zoning Code was adopted in 2010 and applies to the majority of the city. Former Chapter 59 covers approximately 17% of the City that was not included in the 2010 rezoning due to properties having site specific zoning such as Planned Unit Development (PUD), waivers and/or conditions, or were included in a Planned Building Group (PBG – a site plan covering multiple buildings and/or properties).”
  • Local zoningPresent (with conditions)

    Local zoning within Denver County; the aggregate conclusion reflects Denver's citywide zoning codes and site-specific zoning areas.

    • The countywide aggregate should not be read as a single uniform dimensional rule.
    • Applicable controls vary by Denver Zoning Code zone district, Former Chapter 59 area, PUD, waiver, condition, or PBG.
    “Former Chapter 59 covers approximately 17% of the City that was not included in the 2010 rezoning due to properties having site specific zoning such as Planned Unit Development (PUD), waivers and/or conditions, or were included in a Planned Building Group (PBG – a site plan covering multiple buildings and/or properties).”
    One more reviewed finding on this topic
    • Present (with conditions) — Local zoning within the consolidated City and County of Denver.
      “All zoning permit applications are reviewed by city staff to confirm the application and submitted materials meet the standards found in the Denver Zoning Code. In most cases, these reviews are performed only by city staff. However, some applications will require public notice before a permit can be approved.”
  • Zoning districtsPublished

    Denver zoning districts and site-specific zoning areas.

    • The Denver Zoning Code was adopted in 2010 and applies to the majority of the city.
    • Former Chapter 59 covers approximately 17% of the City with site-specific zoning such as PUDs, waivers, conditions, or PBGs.
    “The Denver Zoning Code was adopted in 2010 and applies to the majority of the city. Former Chapter 59 covers approximately 17% of the City that was not included in the 2010 rezoning due to properties having site specific zoning such as Planned Unit Development (PUD), waivers and/or conditions, or were included in a Planned Building Group (PBG – a site plan covering multiple buildings and/or properties).”
    One more reviewed finding on this topic
    • Published (with conditions) — Denver zoning districts and applicable zoning codes.
      “The Denver Zoning Code was adopted in 2010 and applies to the majority of the city. Former Chapter 59 covers approximately 17% of the City that was not included in the 2010 rezoning due to properties having site specific zoning such as Planned Unit Development (PUD), waivers and/or conditions, or were included in a Planned Building Group (PBG – a site plan covering multiple buildings and/or properties).”
  • Who permits septicLocal (with conditions)

    All on-site wastewater treatment systems within the municipal limits of the City and County of Denver.

    • The City and County of Denver Department of Public Health and Environment is the local public health agency administering the Denver OWTS regulations.
    • The Colorado Water Quality Control Division retains authority to administer and enforce Colorado Regulation 43 where necessary to protect public health and the environment.
    • The regulations apply to OWTS with design capacity not greater than 2,000 gallons per day.

    maximum OWTS design capacity: <= 2000 gallons per day (Systems exceeding 2,000 gallons per day are not regulated by these OWTS regulations.)

    “"Local public health agency" means the City and County of Denver Department of Public Health and Environment.”
  • Septic permitRequired

    Operating, constructing, installing, altering, or repairing an OWTS within the municipal limits of the City and County of Denver.

    • A permit is required to operate any OWTS, including one existing before the effective date of the regulations.
    • A permit is required before constructing a new OWTS or repairing an existing OWTS.
    • An emergency permit is required for short-term continued use of an existing OWTS while it is being repaired or replaced.
    • Before constructing, installing, altering, or repairing an OWTS, the applicant must obtain a permit from the Department.
    • New OWTS construction and installation are generally prohibited except for qualifying business, commercial, industrial, or institutional uses under section 3.4.B or systems granted a variance.
    • No permit may be issued where the property abuts a street or alley containing a city public sewer; for a new OWTS serving a multifamily dwelling; for a new OWTS in a designated 100-year floodplain; or where the system would constitute a public-health or water-quality hazard.
    • An OWTS for business, commercial, industrial, or institutional purposes may be permitted only if all other conditions, limitations, design and installation requirements, and prohibitions are met.
    • The permit application must include owner and property information, permit type, a site and soil evaluation report, and an accurate site plan; additional professional information may be required for undesirable soil conditions.
    • A construction permit expires one year after issuance if construction has not commenced; changes to plans or specifications invalidate the permit unless the Department gives written approval.

    maximum design flow for permitted business, commercial, industrial, or institutional OWTS: <= 2000 gallons per day · construction permit expiration if construction has not commenced: 1 year after issuance (A new application is required after expiration.)

    “A permit shall be required to operate any OWTS, including an OWTS in existence prior to the effective date of these regulations. A permit shall be required to construct a new OWTS or repair an existing OWTS. An emergency permit shall be required for short-term continued use of an existing OWTS while the system is being repaired or replaced.”
  • Septic inspectionRequired

    OWTS inspections within the municipal limits of the City and County of Denver, including inspections before an OWTS is placed in use and during construction.

    • The owner or occupant must provide Department access for surveys and inspections of the OWTS and applicable system components.
    • Before a new OWTS is placed in use, the owner, agent, or systems contractor must notify the Department that work is sufficiently complete for inspection.
    • The Department requires inspection of the OWTS and applicable components before backfilling.
    • No OWTS may be approved for use without a final inspection by the Department.
    • Final approval includes, as applicable, an engineer construction certification, as-built drawing, final inspection before backfilling, and identification of the system contractor.
    • Denver does not operate a transfer-of-title OWTS inspection program and does not require an inspection before sale or transfer of title.
    “No OWTS shall be approved for use without a final inspection by the Department.”
  • Subdividing landRegulated (with conditions)

    Subdivision of land in Denver County.

    • Denver Revised Municipal Code Chapter 50 applies.
    • Denver also uses a zone lot, which may differ from a subdivision lot and block and from an assessor's tax parcel.
    • Additional Community Planning and Development, DOTI, and Gateway subdivision regulations may apply.
    “These rules and regulations further DRMC Chapter 50 regarding the subdivision of land.”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Subdivision of land in Denver.
      “These rules and regulations further DRMC Chapter 50 regarding the subdivision of land. Note that Denver also uses a ‘zone lot’ to define the real property that may be developed per Denver’s zoning codes. The zone lot may be different from the subdivision lot and block as well as assessor’s tax parcel.”
  • Building in a floodplainRequired

    All construction, including interior or exterior work on existing buildings and temporary impacts, in Denver regulatory floodplain Zones A, AE, AH, or AO.

    • An SUDP for Floodplain Use, commonly called a Floodplain Permit, is required.
    • Projects must submit through the electronic SUDP process using E-Permits.
    • Floodplain Permit Review and SUDP fees are governed by the Consolidated Fee Schedule.
    • Most construction within the floodway is prohibited and new buildings are not allowed in the floodway.
    • Residential construction must elevate the lowest floor, utilities, machinery, and equipment to at least the Flood Protection Elevation, which equals Base Flood Elevation plus 18 inches of freeboard, or 24 inches for critical facilities.
    • A finished construction Elevation Certificate is required before the Final Floodplain Inspection for specified new, substantially improved, and laterally added buildings.
    • A Final Floodplain Inspection must pass before requesting a Certificate of Occupancy.

    freeboard: 18 inches (24 inches for critical facilities)

    “All construction (including interior or exterior work on existing buildings and temporary impacts) in a regulatory floodplain designated as Zone A, AE, AH, or AO requires an SUDP for Floodplain Use, often referred to as a Floodplain Permit.”
  • Permit feesPublished

    Denver building plan-review, permit, inspection, and administrative fees.

    • Plan-review fees are separate from and in addition to permit fees.
    • Permit fees cover customary inspections only; re-inspections require a fee.
    • Starting work without a permit results in double permit fees with a minimum of $100, subject to the stated emergency exception.
    • Fees are based on construction valuation and include labor, materials, profit, and overhead.

    late permit fee minimum: >= 100 USD (fees are doubled for work started without a permit) · temporary certificate of occupancy: 200 USD · certificate of compliance: 25 USD

    “The plan review fees specified in this Section are separate from and in addition to permit fees. Permit fees provide for the customary inspections only. Re-inspections shall require a fee as set forth by the building official.”
    2 more reviewed findings on this topic
    • Published (with conditions) — Building and land-development permitting in Denver.
      “Building and Land Development Fees View fee schedules and learn how to pay fees for building and land development projects.”
    • Published — Denver permitting and development fees.
      “Application fee of $100.00 is due at the time of submittal. The fees for new sanitary sewer connections are detailed in the Sewer Tap Fees located at www.Denvergov.org/DS”
  • Permit processPublished

    Denver building permit and related development-services process.

    • Applicants use e-permits for building-plan submissions.
    • For homeowner building-log applications, wastewater SUDP review starts automatically when the building permit application is received; the applicant should not submit separately to wastewater.
    • Quick permits are available only for eligible work and are issued without plan review.
    • Building inspections must be scheduled and completed at required stages.
    “When prompted to select a permit type, select "Building Log" under "submit building plans for review." Follow the prompts to fill out your application and upload all required documents listed above.”
    One more reviewed finding on this topic
    • Published — Residential permit applications submitted through Denver e-permits.
      “When prompted to select a permit type, select "Building Log" under "submit building plans for review." Follow the prompts to fill out your application and upload all required documents listed above.”

Colorado rules that apply here

  • Minimum lot sizeDistrict specific (with conditions)

    County zoning regulations for unincorporated Colorado; the state statute authorizes local district-specific lot-size rules but does not prescribe one statewide minimum.

    • Applies to portions of counties outside incorporated cities and towns.
    • Actual minimum lot sizes must be obtained from the applicable county zoning resolution and district map.
    • Colorado's official planning guidance states that most zoning decisions are driven by local governments, not the state.
    “Colorado is a “local control” state when it comes to land use planning authority (Local Government, 2012). This means that most land use decisions such as adoption of zoning and building codes are driven by local governments, not by the state.”
  • Building heightDistrict specific (with conditions)

    Municipal zoning districts in Colorado where the municipality adopts building-height or story regulations.

    • The applicable height or story limit is determined by the municipality's zoning regulations and district classification.
    • The statute provides authority but no statewide numeric height limit.
    • Height restrictions do not apply to existing buildings under the cited municipal zoning authority, except as stated for new growth of vegetation.

    building height or number of stories: local regulation (No statewide numeric limit specified)

    “the governing body of each municipality is empowered to regulate and restrict the height, number of stories, and size of buildings and other structures”
  • Tiny homesAllowed (with conditions)

    Colorado Division of Housing-regulated tiny homes intended for residential occupancy and long-term living.

    • Plans must be submitted to the Colorado Division of Housing for approval before construction of the units.
    • The unit must satisfy applicable Colorado-adopted codes and standards and local zoning requirements.
    • Tiny home units are certified for the specific site where installed; relocation to another Colorado site requires the applicable design criteria, and design differences require revisions.

    foundation types: permanent or temporary

    “Tiny homes are approved for long term living”
  • Manufactured homesAllowed (with conditions)

    Installation and resulting residential use of HUD-code manufactured homes and mobile homes in Colorado, subject to Colorado Division of Housing requirements and local zoning or building requirements.

    • HUD homes must be certified by the applicable State Administrative Agent for installation in Colorado; imported units are monitored by the State Administrative Agent of the state from which they are imported, rather than necessarily by Colorado's SAA.
    • A HUD home may be installed anywhere in Colorado only where local zoning allows it.
    • Local jurisdictions may require site mitigation to meet local wind and snow loads, but the mitigation cannot directly affect or change the construction of the home itself.
    • The Division of Housing regulates installation and installation inspections for HUD homes; mobile-home foundation and structural construction requirements are regulated by local jurisdictions with active building departments.
    • The state minimum HUD design criteria listed by the source are Wind Zone 1, Thermal Zone 3, and Middle Roof Load Zone (30 psf).

    wind zone: 1 zone · thermal zone: 3 zone · roof load zone: 30 psf (Middle Zone)

    “HUD homes [...] can be installed anywhere in Colorado as long as the local zoning allows for it.”
  • Accessory dwellingsAllowed (with conditions)

    One accessory dwelling unit as an accessory use to a single-unit detached dwelling in a Colorado subject jurisdiction where single-unit detached dwellings are allowed.

    • The rule applies to a subject jurisdiction: either a municipality with a population of at least 1,000 within a metropolitan planning organization, or the portion of a county within a census-designated place of at least 40,000 people that is also within a metropolitan planning organization.
    • The subject jurisdiction must allow the ADU through an administrative approval process.
    • The rule applies on or after June 30, 2025.
    • The state requirement does not establish that every Colorado municipality or county area is a subject jurisdiction.

    maximum required ADUs per single-unit detached dwelling: 1 unit · effective date: >= 2025-06-30 · qualifying municipality population: >= 1000 persons (municipality must also be within a metropolitan planning organization) · qualifying census-designated-place population: >= 40000 persons (county portion must also be within a metropolitan planning organization)

    “Section 1 requires a subject jurisdiction, on or after June 30, 2025, to allow, subject to an administrative approval process, one accessory dwelling unit”
  • Off-grid sanitationLimited

    Sanitation for dwellings and occupied structures statewide that is provided without connection to a sewage treatment works.

    • The structure must have adequate facilities for sanitary disposal of sewage.
    • An OWTS may be used subject to applicable permit, inspection, construction, installation, alteration, and use requirements.
    • Construction of new cesspools is prohibited.
    • Septage removed during maintenance or cleaning must be disposed of at an approved site and in an approved manner.
    “No person shall construct or maintain any dwelling or other occupied structure that is not equipped with adequate facilities for the sanitary disposal of sewage.”
  • Well permitRequired

    Every new groundwater-diverting well in Colorado, including residential wells, subject to statutory exemptions and basin-specific rules.

    • The Division of Water Resources administers groundwater permitting and issues permits.
    • Applicants must complete the appropriate application and pay the associated fee.
    • Statutory exemptions and additional Denver Basin or Designated Basin rules may affect the requirement or permit conditions.
    • In many areas, a well may also require an augmentation plan if its priority is not sufficient to divert in priority.

    complete-application review time: <= 49 days (DWR states review of complete new and replacement applications may take up to 49 days)

    “Every new well in the state that diverts groundwater must have a well permit.”
  • Mandatory utility hookupConditional

    Residential or other occupied structures statewide that are not serviced by a sewage treatment works.

    • Colorado law conditions building and occupancy permitting on either service by a sewage treatment works or an approved OWTS process.
    • If the structure is not serviced by a sewage treatment works, the local public health agency must issue the OWTS permit before building construction or remodeling approval, and must complete a final inspection and approve the installation before occupancy approval.
    • This claim does not establish a universal statewide mandate to connect to a particular municipal water or sewer provider.
    “A permit to construct or remodel a building or structure that is not serviced by a sewage treatment works until the local public health agency has issued a permit for an on-site wastewater treatment system;”
  • Driveway accessRequired

    Direct residential access from a property to a Colorado state highway, and construction, relocation, closure, modification, or change in use of access points to state highways.

    • Direct access from a house to a state highway requires an access permit.
    • Some state-highway access categories require access from a lesser street or by easement from a parent parcel whenever possible.
    • Level 1 permits cover single-family residential/agricultural permits; Level 2 covers commercial property and developments exceeding 20 vehicular trips per day without roadway improvements; Level 3 covers commercial property requiring roadway improvements.
    • Level 1 fees are $50, Level 2 fees are $100, and Level 3 fees are $300.
    • No fees are charged to local government applications or political subdivisions.
    • There is no upfront charge to review an Access Permit Application.
    • The permittee is responsible for roadway-improvement costs required with issuance of an access permit.
    • Performance-bond requirements apply only to private projects; local agencies are not required to comply, although CDOT regions may require a bond at their discretion.

    Level 1 access permit fee: 50 USD (Single-family residential/agricultural permits) · Level 2 access permit fee: 100 USD (Commercial property permits and developments exceeding 20 vehicular trips per day without roadway improvements) · Level 3 access permit fee: 300 USD (Commercial property permits requiring roadway improvements)

    “If you want the house to have direct access off of the state highway, then you will need an access permit.”
  • Short-term rentalsLimited

    Short-term rentals statewide, defined in the cited official source as lodging-unit rentals for fewer than 30 days.

    • There is no statewide STR regulatory scheme.
    • Boards of county commissioners may license and regulate STR owners or agencies and set license fees, terms, issuance, and revocation procedures.
    • Home-rule municipalities and private contracts or homeowners' association covenants may impose additional restrictions.

    maximum rental duration for STR definition: < 30 days

    “There are no statewide regulations regarding STRs. As established through House Bill 20-1093, state law allows for boards of county commissioners (BOCCs) to license and regulate an owner or owner’s agency and to fix the fees, terms, and manner for issuing and revoking licenses.”
  • Campground & park staysAllowed (with conditions)

    Temporary overnight camping, including parking a motor home or traveler, on land and water under the control of Colorado Parks and Wildlife, including state parks and state recreation areas.

    • The source addresses lands and waters under the control of the Division of Parks and Wildlife, not all public or private land statewide.
    • Camping includes parking a motor vehicle, motor home, or traveler for the apparent purpose of overnight occupancy.
    • A commission-issued permit may be required; the statute defines permits to include campground permits and electrical hookup permits.
    • The state may charge fees for required passes or permits for use of any state park or state recreation area where supervision, maintenance, or specified facilities warrant a fee.

    overnight occupancy: true (Camping definition includes the parking of a motor vehicle, motor home, or traveler for the apparent purpose of overnight occupancy.) · permit types: campground permits; electrical hookup permits

    “Develop state parks and state recreation areas suitable for such recreational activities as camping, [...] "Camping" means [...] the parking of a motor vehicle, motor home, or traveler”
  • county zoning authorityGeneral

    Colorado counties adopting zoning plans for all or any part of unincorporated territory.

    • The county planning commission may make the zoning plan; in a county having a county planning commission, it must do so upon order by the board of county commissioners.
    • The zoning plan may regulate districts or zones, including building location, height, bulk, size, lot coverage, lot size, open spaces, population density, building and land uses, and access to sunlight for solar energy devices.
    • The plan may include regulations for uses on or along storm or floodwater runoff channels or basins only when the channel or basin has been designated and approved by the Colorado water conservation board, to lessen or avoid hazards from storm or floodwaters.
    • The statute applies to unincorporated territory and does not describe incorporated cities or towns as within this county zoning grant.
    “zoning all or any part of the unincorporated territory within such county”
  • county building authorityGeneral

    Colorado counties adopting and enforcing building codes and requiring building permits in designated unincorporated areas.

    • A board of county commissioners may adopt a building code in all or part of the county, but the area must not be within the limits of an incorporated city or town.
    • Buildings or structures used solely to shelter agricultural implements, farm products, livestock, or poultry may be excepted from the building code and permit requirement.
    • Before adoption, the county planning commission may designate part or all of the county for the building code upon request from the board of county commissioners; the board must hold a public hearing and publish notice once weekly for four consecutive weeks.
    • After adoption of the building code, construction, reconstruction, alteration, or remodeling in the designated area requires a building permit, except for the agricultural-shelter exception.
    • The board must fix a reasonable schedule of building-permit fees; no permit fee may be charged unless a qualified inspector actually performs an inspection.
    • Plans must conform to the building code, and plans and specifications generally must bear the seal of a Colorado-licensed architect or engineer unless exempted by section 12-120-403.
    • Every county adopting or updating a building code must adopt and enforce an energy code meeting or exceeding one of the three most recent International Energy Conservation Code versions under section 30-28-211.
    • The 2025 amendment to section 30-28-204 is effective January 1, 2026 and adds accessibility requirements for substantially amended or updated county building codes, with an exception for compliant one- and two-family dwellings and townhomes.
    “A board of county commissioners is authorized to adopt ordinances and a building code”

Inside cities and towns in Denver County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

  • Local zoningPresent (with conditions)

    Zoning administered by the City and County of Denver as the consolidated municipal-county government.

    • The official page identifies both the Denver Zoning Code and Former Chapter 59, with site-specific zoning and other local conditions applying in some areas.
    “The Denver Zoning Code was adopted in 2010. For properties that were not included in the comprehensive update in 2010, zoning is governed by Former Chapter 59 of the Denver Revised Municipal Code.”
  • Zoning districtsPublished

    Denver zoning districts administered under the Denver Zoning Code and Former Chapter 59.

    • The Denver Zoning Code applies to the majority of the city.
    • Former Chapter 59 covers approximately 17% of the City and includes site-specific zoning such as PUDs, waivers, conditions, and PBGs.
    “View complete Denver Zoning Code as amended through May 7, 2026”
  • Accessory dwellingsAllowed (with conditions)

    Accessory Dwelling Unit use in Denver zone districts where permitted with limitations.

    • One ADU is permitted as accessory to each primary dwelling unit containing a single-unit, two-unit, or multi-unit dwelling use on a zone lot.
    • ADUs accessory to two-unit and multi-unit primary uses must be in detached accessory structures and are not allowed within the primary structure.
    • Mobile homes, recreational vehicles, and trailers cannot be used as ADUs.
    • For SU zone districts, the ADU must have the same ownership as the primary dwelling, and at least one owner generally must occupy the primary dwelling as a primary residence when the permit application is submitted, subject to the stated DHA and new-primary-dwelling exceptions.
    “One Accessory Dwelling Unit use is permitted as accessory to each Primary Dwelling Unit containing a primary Single Unit Dwelling, Two Unit Dwelling, or Multi-Unit Dwelling use on a Zone Lot according to the requirements in this Section 11.8.2.”
  • Subdividing landRegulated (with conditions)

    Subdivision of land in the City and County of Denver.

    • Rules and regulations further DRMC Chapter 50.
    • Community Planning and Development, Department of Transportation and Infrastructure, and Gateway-area regulations may apply.
    • A zone lot may differ from the subdivision lot and block and from the assessor’s tax parcel.
    “These rules and regulations further DRMC Chapter 50 regarding the subdivision of land.”
  • Building in a floodplainRequired

    Any construction, including an interior remodel, within a regulatory floodplain in Denver.

    • A floodplain permit is required as part of the SUDP review.
    • Additional requirements will be necessary.
    “If any construction, including an interior remodel, is within a regulatory floodplain, a floodplain permit will be required as part of the SUDP review. Additional requirements will be necessary.”
  • Short-term rentalsLimited

    Accessory short-term rental use in Denver zone districts where permitted with limitations.

    • The use must be clearly incidental and customary to and commonly associated with primary residential household living.
    • It must operate only in a dwelling unit, which may have a partial kitchen for this use limitation.
    • It must be operated by the person or persons maintaining the primary dwelling as their primary residence or in an ADU on the same zone lot as their primary residence.
    • The rental cannot be in a recreational vehicle or travel trailer.
    • Rentals of 30 or more days are excluded from the short-term-rental definition.
    “In all zone districts, where permitted with limitations, an accessory Short-term Rental use: A. Shall be clearly incidental and customary to and commonly associated with the operation of a primary residential household living use.”

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 requirements in Denver.
  • Setbacks — Setback requirements in Denver.
  • Lot coverage — Lot-coverage requirements in Denver.
  • Living in an RV — Long-term or residential occupancy of recreational vehicles in Denver.
  • Camping on your land — Temporary camping on private land in Denver.
1 more unanswered
  • Agricultural exemption

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.

Living off-grid in Denver County, Colorado

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

Denver County scores 38/100 on the Bolthole Index, a marginal county profile. Its strengths: a stronger property-autonomy legal backdrop and mixed durability signals. Watch-outs: little seclusion — roughly 2,791,282 people within a 30-minute drive and higher long-term carry cost.

Do you need a building permit in Denver County, Colorado?

Denver County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Denver Department of Public Health & Environment. 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.

How much does land cost in Denver County, Colorado?

Land in Denver County runs about $122,408 per acre, based on the latest county data.

What is the water situation in Denver County?

Denver County gets about 15.1" of rain a year, with severe drought in roughly 13.5% of years.

How remote is Denver County?

A representative private-land location has about 2,791,282 people within a 30-minute drive and 5,298,052 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 Denver compares in Colorado

Compare side-by-side →See all 64 Colorado counties ranked →