This is PermitBase’s published record for Unincorporated Doña Ana County as of 2026-07-05. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.
Unincorporated Doña Ana County building permits
VerifiedUnincorporated Doña Ana County, New Mexico — as published 2026-07-05.
Verified 2026-07-05 · Source
Codes adopted
Permit types & fees
Single Family Dwelling Permit
VerifiedRequired for new single-family dwelling construction in unincorporated Doña Ana County. Issued directly by the Doña Ana County Community Development Department — Building Services Division (not the City of Las Cruces) for properties located in the unincorporated county. The county's Single Family Dwelling Permit Application is the official application bundle and includes a published 15-business-day review commitment.
Verified 2026-07-05 · Source
Requirements
- New single-family dwelling construction
- Recorded Proof of Ownership (Warranty Deed or Real Estate Contract) — copy obtainable at the County Clerk's Office, Room 200
- Proof Record Card from the County Assessor's Office, Room 220
- Proof of septic tank permit (NMED, (575) 288-2050) or a ready-willing-and-able letter from a sewer provider; utility bills are not accepted as proof
- Proof of a domestic well permit (State Engineer's Office, (575) 524-6161) or a ready-willing-and-able letter from a water provider; utility bills are not accepted as proof
- If more than one dwelling is proposed on the property, a septic permit is required for each dwelling
- SWPPP and NOI required for projects in a platted subdivision, or for projects outside a subdivision on a parcel exceeding one acre
- Driveway permit ($20.00) required if accessing a county road; a permit from NMDOT may be required if accessing a state road
- Homeowner-pulled permits additionally require a completed 'Instructions for Permit' form and a 'Responsibilities and Liabilities Acknowledgement'
- Electrical, plumbing, and mechanical permits are obtained separately, AFTER issuance of the building permit, by the licensed tradesman for each trade
Required documents
- RequiredSingle Family Dwelling Permit ApplicationCounty application packet; requires 1 set of plans drawn to 1/4" = 1.0-foot scale including a detailed site plan (setbacks, on-lot ponding, dimensions), foundation plan, floor plan, building elevations with height dimensions, wall cross-section, roof/floor framing plan, and an electrical plan (meter, condenser location, one-line diagram, load calculations)
- RequiredTruss Layout/SpecificationsCopy of truss layout/specifications from the manufacturer
- Required2021 RESCheck Energy CertificateSigned Energy Certificate demonstrating IECC 2021 compliance
- RequiredProof Record CardObtained from the Doña Ana County Assessor's Office, Room 220
- RequiredRecorded Proof of OwnershipWarranty Deed or Real Estate Contract, obtained from the County Clerk's Office, Room 200
- RequiredSeptic or Sewer DocumentationNMED septic tank permit copy, or a ready-willing-and-able letter from the sewer provider; utility bills not accepted
- RequiredWater Service DocumentationState Engineer's Office domestic well permit copy, or a ready-willing-and-able letter from the water provider; utility bills not accepted
- OptionalSWPPP and NOIRequired only for projects in a platted subdivision, or on parcels exceeding one acre outside a subdivision
- OptionalDriveway PermitRequired if the property accesses a county road ($20.00); a separate NMDOT permit may be required for state-road access — verify with DAC Engineering, (575) 525-6164
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Building Permit Fee — new single-family dwellings and duplexes | $0.20 per total square foot of floor area (measured to the outside walls; to the outside edge of the floor/roof-line for a carport, covered porch, or similar structure) | Doña Ana County Building Permit Fee Schedule (Section I, Permit Fees). Confirmed again on the county's Permit Requirements page and the Single Family Dwelling Permit Application ('Fee – Permit fee is based on $0.20 per total sq. ft.'). |
| Plan Review / Application Payment | 25% of the assessed permit fee due at application (non-refundable); remaining 75% due prior to permit issuance | Doña Ana County Building Permit Fee Schedule, Plan Review Fees section, and the Permit Requirements page |
| Driveway Access Permit (county road access) | $20.00 | Single Family Dwelling Permit Application, Engineering Requirements section |
| General Construction Valuation Fee Table (applies to construction types not otherwise itemized) | $45 for $1.00–$500; $45 + $1.00 per additional $100 (or fraction) up to $2,000; $60 + $10.00 per additional $1,000 (or fraction) from $2,001–$25,000; $290 + $8.00 per additional $1,000 (or fraction) from $25,001–$50,000; $490 + $6.00 per additional $1,000 (or fraction) from $50,001–$100,000; $790 + $5.00 per additional $1,000 (or fraction) above $100,000 | Doña Ana County Building Permit Fee Schedule, 'Other Construction' valuation scale |
Electrical Permit
VerifiedRequired for electrical installations, alterations, and repairs in unincorporated Doña Ana County. Obtained separately from — and only after — the building permit is issued, by a New Mexico-licensed electrical contractor. Fees are set by amperage tier for residential and commercial service, per the county's own Electrical Permit fee form.
Verified 2026-07-05 · Source
Requirements
- Cannot be issued until an associated building permit (or MHIP, for manufactured homes) has been issued, or in conjunction with an existing remodel not requiring a building permit
- New service, service change, remodel/addition, or miscellaneous electrical work (swimming pool, multi-building service, photovoltaic/solar, temporary power pole)
- One-line diagram required for any electrical service 200A and above
- Work must be performed by a New Mexico-licensed electrical contractor for permits pulled by a tradesman; homeowner permits are separately available for the homeowner's own primary residence
Required documents
- RequiredElectrical Permit Application/Fee FormCounty form listing contractor info, license number, service amperage tier, and inspection location; requires the associated Building Permit or MHIP number
- OptionalOne-Line DiagramRequired for any electrical service rated 200A and above
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential — 100A Service & Below | $45.00 | Doña Ana County Electrical Permit fee form |
| Residential — 101A-125A Service | $60.00 | Doña Ana County Electrical Permit fee form |
| Residential — 126A-150A Service | $75.00 | Doña Ana County Electrical Permit fee form |
| Residential — 151A-200A Service | $100.00 | Doña Ana County Electrical Permit fee form |
| Residential — Over 200A Service | $300.00 | Doña Ana County Electrical Permit fee form |
| Residential — Remodel/Addition | $60.00 | Doña Ana County Electrical Permit fee form |
| Commercial — 100A Service & Below | $130.00 | Doña Ana County Electrical Permit fee form (commercial tiers scale up to $1,275.00 for over 2000A service) |
| Commercial — Remodel/Addition | $175.00 | Doña Ana County Electrical Permit fee form |
| Misc. — Swimming Pool | $45.00 | Doña Ana County Electrical Permit fee form |
| Misc. — Photovoltaic (Solar PV) | $45.00 | Doña Ana County Electrical Permit fee form |
| Misc. — Temporary Power Pole | $45.00 | Doña Ana County Electrical Permit fee form |
| Misc. — Electrical Service/Multiple Building | $60.00 | Doña Ana County Electrical Permit fee form |
| Misc. — Minimum Fee Items Not Listed (TV, TEL, S/E, AL, AC, other) | $45.00 | Doña Ana County Electrical Permit fee form |
Plumbing / Mechanical Permit
VerifiedRequired for plumbing and mechanical (HVAC/gas) installations, alterations, and repairs in unincorporated Doña Ana County. Doña Ana County uses a single combined Plumbing/Mechanical permit form and fee schedule covering both trades, priced per fixture/appliance item. Obtained separately from — and only after — the building permit is issued.
Verified 2026-07-05 · Source
Requirements
- Cannot be issued until an associated building permit (or MHIP) has been issued, or in conjunction with an existing remodel not requiring a building permit
- Covers plumbing fixtures, water distribution, building drains, water heaters, swimming pools, water conditioners, backflow devices, evaporative coolers, ventilation/exhaust, refrigeration, ductwork, solar water heating, in-floor heating, gas piping, grease interceptors, and roof drains
- Gas unit items priced separately per unit: yard line, wall heater, range, capped opening, boiler, central furnace (by BTU), water heater (by BTU), pool heater (by BTU)
- Work must be performed by a New Mexico-licensed plumbing or mechanical contractor for tradesman-pulled permits
Required documents
- RequiredPlumbing/Mechanical Permit Application/Fee FormCounty form itemizing each plumbing/mechanical fee item and gas unit type; requires the associated Building Permit or MHIP number
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Plumbing Fixture / Waste Discharge Device | $4.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Water Distribution System | $4.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Building Drain (Under Slab) | $4.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Water Heater (Electric) | $4.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Swimming Pool | $45.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Water Conditioner | $5.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Vacuum Breaker / Backflow Device | $4.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Evaporative Cooler | $5.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Ventilation System / Exhaust | $5.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Refrigeration System | $5.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Duct Work System | $8.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Hot Water Solar Heating System | $8.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| In-Floor Heating | $15.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Gas Piping System | $5.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Grease/Sand Interceptor | $4.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Commercial Grease Hood | $8.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Roof Drains | $4.00 | Doña Ana County Plumbing/Mechanical Permit fee form |
| Gas Unit (each: yard line, wall heater, range, capped opening, boiler, furnace, water heater, or pool heater) | $3.00 each | Doña Ana County Plumbing/Mechanical Permit fee form, 'Total Gas Units Each At' line item |
| Administration Fee | $15.00 | Doña Ana County Plumbing/Mechanical Permit fee form — applies per permit |
| Final Inspection Fee | $10.00 | Doña Ana County Plumbing/Mechanical Permit fee form — applies per permit |
Reroof & Reroof/Overlay Permit
VerifiedRequired for roof replacement (reroof) and roof overlay work on residential structures in unincorporated Doña Ana County, per the county's dedicated Residential Reroof & Reroof/Overlay Permit Requirements handout. Follows the same 25%-at-application payment process as the general building permit.
Verified 2026-07-05 · Source
Requirements
- Complete reroof or reroof/overlay of an existing residential roof
- Incomplete applications are not accepted
- 25% of the permit fee is required at time of application
- Homeowner-pulled reroof permits require completion of 'Instructions for Permit' and 'Responsibilities and Liabilities Acknowledgement' forms
Required documents
- RequiredInvoice or ProposalShowing the scope of roofing work
- RequiredRoofing Material & Manufacturer SpecificationProduct specification sheet for the roofing material to be installed
- RequiredRecorded Proof of OwnershipWarranty Deed or Real Estate Contract with legal description of the property, obtainable at the County Clerk's Office, Room 200
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee (general valuation scale applies; no distinct reroof line item is published) | $45 for $1.00–$500 up to $790 + $5.00 per additional $1,000 above $100,000 (see the general valuation scale) | Doña Ana County Building Permit Fee Schedule, 'Other Construction' section — reroofing is not separately itemized, so it is priced under the same valuation-based table used for general construction not otherwise listed |
| Plan Review / Application Payment | 25% due at application (non-refundable) | Reroof & Reroof/Overlay Permit Requirements handout: 'Incomplete applications are not accepted. 25% of permit fee required at time of application.' |
Sources & verification
Verified against official sources. Last reviewed 2026-07-05.
Fee schedules
Applications & forms
Checklists & handouts
Codes & ordinances
Department & other records
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Unincorporated Doña Ana County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.