Valencia County's planning and zoning department at 444 Luna Avenue South East in Los Lunas permits and inspects construction in the unincorporated county, immediately south of Bernalillo County along the Rio Grande. The county recorded the largest percentage population increase in New Mexico in the most recent estimates — growth driven almost entirely by housing demand moving south out of the Albuquerque metropolitan area onto cheaper land.
Most of that land is unserved. A new house in the unincorporated county typically needs a well and an on-site liquid waste system, and on the valley floor the high groundwater and the acequia network complicate both. The villages of Los Lunas and Bosque Farms and the City of Belen permit their own construction; Isleta Pueblo land at the county's northern end is outside county jurisdiction entirely.
This guide covers unincorporated Valencia County. Los Lunas, Belen, Bosque Farms, Peralta and Rio Communities permit their own construction, and Isleta Pueblo land is outside county jurisdiction.
Growth onto land without services. Valencia County is absorbing the fastest percentage population growth in New Mexico onto land that is largely unsewered. A new house here typically needs a well and an on-site liquid waste system, and on the valley floor high groundwater and acequia easements complicate both — making the services question the real gate on most residential projects.
What requires a building permit in Valencia County?
New Mexico sets its codes once, at state level, and then divides the enforcement. The Construction Industries Division of the Regulation and Licensing Department adopts the statewide codes under the Construction Industries Licensing Act — the New Mexico Commercial Building Code at 14.7.2 NMAC and the New Mexico Residential Building Code at 14.7.3 NMAC, both adopting the 2021 International Codes as amended by the state, alongside the existing building, energy, mechanical, plumbing and electrical codes in the same chapter. Those codes are the standard everywhere in the state. What changes is who administers them: a municipality or county certified as a Local Enforcement Agency issues its own permits and carries its own inspections, and where no such agency exists the division does both itself. A home rule municipality may also adopt amendments more stringent than the state code, in which case the stricter provision governs. In Valencia County the practical questions are which authority issues the permit, whether local amendments apply, and the county's zoning and its unserved rural land.
The adopted codes draw the exemption line. Ordinary repairs need no permit; construction, alteration, relocation, enlargement, replacement, repair, change of use or occupancy, and demolition of a building or structure all do. Detached one- and two-family dwellings and townhouses of not more than three storeys fall under the residential code; other buildings under the commercial code; and an existing building undergoing a change of occupancy, repair, alteration or addition falls under either the commercial code or the existing building code as applicable. Electrical, mechanical and plumbing work carries its own permits and its own state licences.
Typically permit required
- Construction, alteration, relocation, enlargement, replacement, repair, change of occupancy or demolition in unincorporated territory
- Zoning and platting approval from the county ahead of the building permit
- Well and on-site liquid waste approval where the parcel is unserved, which is most of the county
- New buildings, additions and structural work, under the commercial or residential code as applicable
- Alteration, relocation, enlargement, replacement and repair of a building or structure
- Any change of use or occupancy, which brings the existing building code into the analysis
Often exempt
- Ordinary repairs that do not alter structure, egress or systems, and work the adopted codes place below the permit threshold
- Ordinary repairs that do not alter structure, egress or systems
- Painting, papering, flooring, cabinets and similar finish work
- Like-for-like replacement the adopted codes place below the permit threshold
- Small accessory structures below the threshold — zoning and any local amendment still apply
Local Enforcement Agencies and what they change
A Local Enforcement Agency is a municipality or county certified to administer permitting and inspections itself. In an agency jurisdiction the enforced code is still the state's, but the procedural pathway is local: the local building department takes the application, reviews the plans and inspects the work. Outside those jurisdictions the Construction Industries Division does all of it directly from its own offices. A home rule municipality may go further and adopt amendments more stringent than the state code, and where the two differ the stricter provision governs. Valencia County's layer is therefore its status, any amendments it has adopted, its zoning and platting, its fee schedule, and the rapid growth onto unserved land and the valley's groundwater and acequia conditions.
Who handles permitting in Valencia County?
The planning and zoning department is the permitting authority for unincorporated Valencia County, administering the state code alongside county zoning and platting. Los Lunas, Belen and the other municipalities permit their own, Isleta Pueblo land is outside county jurisdiction, and the Construction Industries Division licenses contractors statewide.
| Detail | Information |
|---|---|
| Department | Valencia County planning and zoning |
| Office | 444 Luna Avenue South East, Los Lunas, NM 87031 |
| Phone | (505) 866-2050 |
| Scope | Unincorporated Valencia County |
| Services | Well and on-site liquid waste on most rural parcels |
| Contractor licensing | Construction Industries Division, statewide |
Permit types
Residential permits
A house in unincorporated Valencia County is permitted by the county against the New Mexico Residential Building Code as amended, with zoning cleared first and, on most parcels, a well and an on-site liquid waste system approved alongside. On the valley floor the groundwater depth affects what waste system is possible, and the acequia easements affect where the house can sit.
How New Mexico contractor licensing works
Unlike several of its neighbours, New Mexico licenses contractors at state level. The Construction Industries Division issues contractor licences under the Construction Industries Licensing Act across general building, general engineering, mechanical, electrical and plumbing classifications, each tied to a qualifying party who has passed the trade and business examinations. A licence is valid throughout the state, so the credential does not have to be re-earned in each jurisdiction — though a municipality may still require a local business registration. The division also licenses journeymen in the trades, and unlicensed contracting is an enforcement matter for the division rather than for Valencia County.
Commercial permits
Commercial and industrial work in unincorporated Valencia County — the Interstate 25 corridor and the distribution and manufacturing development at the county's northern end — clears the county's zoning and site development, then plan review against the New Mexico Commercial Building Code, with water supply and waste disposal capacity often the binding constraint on a larger site.
Which authority issues the permit
The first question on any New Mexico project is not which code applies — that is settled statewide — but which office administers it. The larger municipalities operate as Local Enforcement Agencies with their own building departments; much of the rest of the state, including a good deal of unincorporated county territory, is permitted and inspected by the Construction Industries Division directly. Confirming jurisdiction before submitting an application is the step out-of-state design teams most often miss. Zoning, platting and site development are separately local in every case, and the division has no authority over them. In unincorporated Valencia County the Rio Grande floodplain, high groundwater and the acequia network govern the valley land, Isleta Pueblo territory at the northern end is outside county jurisdiction, and most rural parcels depend on wells and on-site liquid waste systems.
Valencia County permit costs and fees
Fees follow the county's schedule for unincorporated territory, with well and liquid waste approvals charged separately and contractor licensing charged by the state.
| Item | Fee or rule |
|---|---|
| Building permit | The county's fee schedule, for unincorporated territory |
| Zoning and platting | County approval ahead of the permit |
| Well and liquid waste | Separate approvals, needed on most rural parcels |
| Trade permits | Electrical, mechanical and plumbing, by state-licensed contractors |
| Contractor licence | Issued by the Construction Industries Division, valid statewide |
| Municipal permits | Los Lunas, Belen and the others issue their own |
Groundwater decides the waste system. On the valley floor the depth to groundwater determines what on-site liquid waste system is permissible — and in places rules out the conventional one entirely, requiring an engineered alternative at materially higher cost. That is established by site evaluation before design, not discovered at the permit counter.
Trade permits and who may pull them
Electrical, mechanical and plumbing work is permitted separately and performed by contractors holding the matching state licence from the Construction Industries Division.
Permit required
- Unserved parcels — well and on-site liquid waste approvals alongside the building permit
- Electrical — state-licensed electrical contractor; separate permit and inspection
- Mechanical — state-licensed mechanical contractor; separate permit, covering heating, cooling and refrigeration
- Plumbing and gas — state-licensed plumbing contractor; separate permit under the plumbing and gas codes
- Liquefied petroleum gas work, which the division regulates separately
Typically exempt
- Like-for-like replacement the adopted codes place below the permit threshold
- Work a homeowner may perform on their own residence where the administering authority allows it
How to apply for a Valencia County building permit
A Local Enforcement Agency issues its own permits; elsewhere the Construction Industries Division does it directly.
Zoning, platting and site development are local in every case, and the division has no authority over them.
A home rule municipality may adopt provisions more stringent than the state code, and the stricter provision governs.
The division licenses contractors statewide in the classification matching the work.
The commercial code, the residential code or the existing building code, depending on the building and the work.
Footing to final with the authority that issued the permit, then the certificate of occupancy.
Review, corrections and what actually causes delay
Valencia County reviews unincorporated work against the state code. What delays a file here is a waste system designed before the groundwater was evaluated, an acequia easement discovered after siting, and a parcel assumed to be inside one of the villages.
Inspections in Valencia County
Inspections follow the adopted codes' sequence — footing, foundation, framing, rough trades, insulation and final — and are requested from whichever authority issued the permit, with the trades inspected on their own permits. Work that passes final receives a certificate of occupancy for new buildings and changes of occupancy. Valencia County inspects the work it permits in the adopted codes' sequence, with the trades inspected on their own permits; inside the municipalities, inspection is theirs.
Valencia County permit search and official resources
- Valencia County — the county government, planning and zoning
- New Mexico Construction Industries Division — the statewide codes and contractor licensing
- 14.7.3 NMAC — New Mexico Residential Building Code — the 2021 International Residential Code as amended by the state
- New Mexico Construction Industries Division — the statewide codes, contractor licensing and the division's own permitting
- 14.7.2 NMAC — New Mexico Commercial Building Code — the 2021 International Building Code as amended by the state
- 14.7.3 NMAC — New Mexico Residential Building Code — the 2021 International Residential Code as amended by the state
Frequently asked questions
Does the county permit inside Los Lunas or Belen?
No. Those municipalities permit their own construction; the county covers unincorporated territory.
Do I need a well and a septic system?
On most unincorporated parcels, yes — the county is largely unsewered, and both are separate approvals alongside the building permit.
How does groundwater affect the project?
On the valley floor the depth to groundwater determines what liquid waste system is permissible, and can require an engineered alternative at higher cost.
Which code applies?
The state code adopted by the Construction Industries Division, on the 2021 International Codes as amended.
Is pueblo land inside county jurisdiction?
No. Isleta Pueblo land at the county's northern end is outside county permitting jurisdiction.
Who licenses my contractor?
The Construction Industries Division, at state level, valid throughout New Mexico.
Simplify Valencia County permitting with Alliance Permitting
Valencia County's growth is landing on parcels without services. We evaluate the water and waste position before the design, because on this ground it decides the design.
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Send us the scope and the parcel. We confirm the review path with the Valencia County planning and zoning department, assemble the submittal, file it, and track it through issuance — corrections included.
More New Mexico permitting guides
More New Mexico permitting guides
This guide is provided by Alliance Permitting for general information about Valencia County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.