Unincorporated Catron County, New Mexico has no county zoning, but construction covered by state law still requires the applicable state building permit12. The New Mexico Construction Industries Division handles residential building permits and inspections, while the New Mexico Environment Department handles onsite wastewater permits and inspections34.
At a glance
- Building permit
- Required for construction work covered by New Mexico statute or rule; issued by the state Construction Industries Division32
- Building inspections
- Required at specified stages for residential work regulated through the state process5
- Zoning
- No county-administered zoning in unincorporated Catron County1
- Septic permits
- NMED approval is required before installing or modifying a regulated onsite wastewater system46
- Owner-builder
- A conditional homeowner permit is available for an owner's primary residence7
- RV living
- No county zoning restriction in unincorporated areas; sanitation and other non-zoning rules still apply81
- Tiny homes
- Allowed conditionally under state code when used as a dwelling on a permanent foundation9
- Septic soils
- Only 22.6% of county soils are rated without severe limits for a conventional drain field10
Who to call
Building permits
New Mexico Construction Industries Division (CID)
State building permits and inspections for covered construction in Catron County
Septic permits
New Mexico Environment Department, Liquid Waste (Onsite Wastewater) Program
On-site liquid-waste permit applications for Catron County
Harold L. Runnels Building, 1190 St. Francis Drive, Suite N4050, Santa Fe, NM 87505
Contact details are copied from each office’s official page and were checked against it on October 7, 2026.
Off-grid gear
Going off-grid in Catron County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Catron County, New Mexico?
Yes, when New Mexico statute or rule requires one. Covered construction-related work in Catron County needs the applicable permit before work begins; the rule does not say that every project requires a permit2. Residential work regulated through CID receives foundation, slab or under-floor, frame, weather-resistive-barrier and final inspections, plus any other inspection needed for code compliance5. CID building fees are based on project valuation, with separate plan-review charges, and the permit is not valid until required fees are paid11. A qualifying owner may obtain a homeowner permit for a primary residence, but the owner must do the major portion of the work by dollar amount and meet the application, code and inspection requirements7.
Who handles Catron County building permits and inspections?
The New Mexico Construction Industries Division handles residential building permits and inspections in Catron County because the county has no local building department3. Use CID's state permit process for general construction and the applicable trade permits for electrical, plumbing, mechanical or LP-gas work covered by state rules12. CID accepts inspection requests through the contact information above513. Schedule inspections at the required stages and leave work visible until it passes. Final electrical, plumbing and mechanical inspections must precede the final general-construction inspection, after which the construction inspector issues the certificate of occupancy5. For a homeowner-permit project, the homeowner is responsible for requesting inspections, correcting violations and obtaining the certificate of occupancy or final inspection14.
Does Catron County, New Mexico have zoning?
Unincorporated Catron County has no county-administered zoning1. As a zoning matter, the county therefore sets no setbacks, lot-coverage limit, building-height limit, zoning districts, RV-occupancy restriction or temporary-camping restriction on unincorporated land8. The no-zoning answer does not remove building, septic, subdivision, floodplain, health, utility, safety or private deed restrictions1. It also does not establish the rules inside an incorporated municipality or village, so verify the parcel's jurisdiction before relying on it1. Land division is separate from zoning: Catron County subdivision regulations and state water-availability review may apply even where county zoning does not15.
How do septic permits work in Catron County?
The New Mexico Environment Department administers onsite wastewater systems in Catron County4. Obtain NMED approval before installing or modifying a regulated system; the application includes ownership proof, a site diagram, a floorplan and supporting documents6. Submit the complete package to the local field office, wait for approval or conditional approval, and pay only after NMED contacts you1617. Request inspection 48 hours, or 2 business days, ahead and do not cover the system; approval leads to a Permit to Operate18. The published fee for a conventional system with design flow up to 1,000 gallons per day is $225, while system type and flow can change the amount19. Only 22.6% of county soils are rated without severe limits for a conventional drain field, so establish septic feasibility before fixing the homesite10.
Can you live in an RV or tiny home in Catron County?
Unincorporated Catron County has no county zoning restriction on RV occupancy or temporary camping8. That is only a zoning answer: onsite wastewater, building, floodplain, utility, safety and private deed restrictions can still affect how a parcel is used1. A tiny house used as a dwelling on a permanent foundation is conditionally allowed under New Mexico's residential code and must provide permanent facilities for living, sleeping, eating, cooking and sanitation9. A tiny house on a chassis with a permanent axle is treated as an RV and must meet applicable RV codes and licensing rules; removing the axles and placing the unit on supports or a foundation brings the permanent-foundation tiny-house code into play9. Rules inside an incorporated municipality or village were not established by the county's no-zoning notice, so ask that municipality before placing or occupying either type of unit1.
What are the steps to build a home in Catron County?
- Confirm that the parcel is in unincorporated Catron County and check subdivision, floodplain and private deed restrictions; the county's no-zoning status does not remove those controls1.
- Establish septic feasibility, prepare the site diagram and other supporting documents, and submit the liquid-waste application to the local NMED field office617.
- Submit the applicable construction plans and permit applications to CID and pay the required building and plan-review fees211.
- Request each required CID inspection and complete the trade finals before the final general-construction inspection5.
- Obtain the certificate of occupancy or final approval before treating the project as complete14.
What should you check before buying land in Catron County?
Check water and septic feasibility before closing: Catron County averages about 15.3 inches of precipitation a year, severe drought occurs in about 38.3% of years, and only 22.6% of soils are rated without severe limits for a conventional drain field202110. We could not confirm the private-well permit rule, so ask the New Mexico Office of the State Engineer what a proposed well requires. Confirm that any proposed land division complies with Catron County's subdivision regulations and state review requirements15. Verify legal access, road maintenance, flood exposure and recorded deed restrictions before relying on the county's no-zoning status1. About 63.1% of Catron County is federal land, making boundary and recorded-access review especially useful22.
Watch-outs
- Catron County's no-zoning answer applies only to unincorporated land and does not displace building, septic, subdivision, floodplain or private deed restrictions1.
- Only 22.6% of Catron County soils are rated without severe limits for a conventional septic drain field, so confirm septic feasibility before buying10.
- A homeowner permit is limited to the owner's primary residence and does not cover rental property, commercial work or a project managed by a licensed general contractor7.
Sources
- Catron County Business License, Building Permit, Zoning and Flood Plain Certification, quoted and re-checked
- rld.nm.gov, quoted and re-checked
- NM RLD Construction Industries Division - Apply for a Permit (2026 county census)
- Liquid Waste Regulations, quoted and re-checked
- Building Permit Guide for Residential Construction, quoted and re-checked
- Apply for a Permit, quoted and re-checked
- rld.nm.gov, quoted and re-checked
- New Mexico law on county zoning and building authority
- 14.7.3 NMAC — 2021 New Mexico Residential Building Code, quoted and re-checked
- 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
- 14.5.5 NMAC — Permit Fees, quoted and re-checked
- 14.5.2 NMAC — Permits, quoted and re-checked
- New Mexico Construction Industries Division (CID) (rld.nm.gov)
- 14.5.2 NMAC — Permits, quoted and re-checked
- County Subdivision Regulations, quoted and re-checked
- Apply for a Permit, quoted and re-checked
- New Mexico Environment Department, Liquid Waste (Onsite Wastewater) Program (env.nm.gov)
- Apply for a Permit, quoted and re-checked
- Apply for a Permit, quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
- Federal land share: Bolthole Index county data
Written October 7, 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.