Bolthole Index

Valencia County, New Mexico

Building permits, zoning and septic rules in Valencia County, New Mexico

35Index Score / 100
#23 of 33 in New Mexico

Valencia County, New Mexico requires a building permit for most residential construction, but the county has no building department of its own: the state Construction Industries Division issues the permit after county zoning approval1. Valencia County zones unincorporated land2, and the New Mexico Environment Department handles septic permits3. A qualifying owner may obtain a homeowner permit for work on their primary residence4.

At a glance

Building permit
Required for covered work; issued by the state Construction Industries Division after county zoning approval15
Zoning
Yes — Valencia County administers zoning in unincorporated areas2
Septic permits
Issued by the New Mexico Environment Department, not Valencia County3
Owner-builder permit
Available for a qualifying owner working on their primary residence4
Building code
2021 International Residential Code, as adopted for the New Mexico Residential Building Code6
Tiny home
Allowed on a permanent foundation, up to 400 sq ft excluding lofts, under the state Residential Code's tiny-house appendix7
Effective property tax rate
About 0.7% of assessed value8
Typical home value
$317,7549

Who to call

Zoning

Valencia County Planning & Zoning Department

Zoning approval and permit intake for unincorporated Valencia County, including the state's homeowner's-permit application for owners acting as their own contractor

505-866-2050

444 Luna Avenue, Los Lunas, NM 87031

Online permits →

Floodplain permits

Valencia County Code Enforcement Department

The county's zoning and flood review required before construction of any structure 120 square feet or larger, and general zoning/code-violation enforcement

505-866-2054

444 Luna Avenue, Los Lunas, NM 87031

Building permits

New Mexico Construction Industries Division (Albuquerque field office)

Issues Valencia County's building permits and performs required construction inspections statewide, since the county is not a full-service building authority

505-222-9800

5500 San Antonio NE, Albuquerque, NM 87109

Online permits →

Septic permits

New Mexico Environment Department, Onsite Wastewater Bureau

Issues septic (on-site liquid waste system) permits statewide, including for Valencia County, since the county has no local septic authority

505-827-2855

1190 St. Francis Drive, Suite N4050, Santa Fe, NM 87505

Online permits →

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

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

Valencia County requires a building permit before covered residential construction, alteration, repair, moving or demolition work begins5. New Mexico's Construction Industries Division issues the permit and performs the associated inspections because Valencia County has no local building department1. Valencia County Code Enforcement separately requires zoning and flood review before construction of any structure 120 square feet or larger, including barns, livestock housing, carports, sheds and re-roofs10. State permit exceptions include a one-story detached tool or storage shed no larger than 120 square feet and a fence no higher than 6 feet, but separate trade permits may still apply11. The practical answer is therefore two-part: ask the county about zoning and flood review, then obtain the state construction permit when the work is not exempt105.

Who issues building permits in Valencia County, and how do you reach them?

Start with the Valencia County Planning & Zoning Department at 444 Luna Avenue in Los Lunas; its page provides the Valencia County permit application and the state homeowner application12. A state residential permit application may require county zoning approval and a county signature before it goes to the Construction Industries Division13. The building permit and inspections then come from the state, with Construction Industries and Manufactured Housing handling Valencia County inspections through the Albuquerque office14. Valencia County Code Enforcement, also at 444 Luna Avenue, handles the county zoning and flood review required before construction of a structure 120 square feet or larger10. State permit fees cover plan review, the permit notice and required inspections, and the Construction Industries Division calculates the amount from project valuation15.

Does Valencia County have zoning?

Yes. Valencia County administers zoning in unincorporated areas, while incorporated municipalities and tribal jurisdictions may have separate land-use authority2. Unincorporated land without another identified district is treated as Outland District, but the county warns that districts can change and buyers should consult the current zoning map16. New Mexico law limits county zoning to territory outside a municipality's zoning jurisdiction17. We could not confirm countywide numeric rules for minimum dwelling size, minimum lot size, setbacks, lot coverage or building height, so ask Planning & Zoning for the standards attached to the parcel's current district12. Long-term RV occupancy and local placement of tiny or manufactured homes also remain unconfirmed; do not treat state construction approval as county land-use approval12.

How do septic permits work in Valencia County?

The New Mexico Environment Department handles Valencia County septic permits because Bernalillo County is the only county in the state with its own onsite-wastewater ordinance3. Apply to the Onsite Wastewater Bureau and wait for approval before paying or beginning construction18. Review time depends on whether the proposal is a conventional system, advanced treatment system or variance request18. Request the installation inspection 48 hours, or 2 business days, ahead and do not cover the system before inspection; approval produces a Permit to Operate19. Valencia County has 48.7% of soils rated without severe limits for a conventional drain field, but the specific site evaluation controls the design20. A qualifying homeowner may install a simple conventional system after passing the required test21.

Can you live in an RV, tiny home or manufactured home on your land in Valencia County?

New Mexico's Residential Code recognizes a tiny house of up to 400 square feet, excluding lofts, when it provides complete independent living facilities, meets the state code and sits on a permanent foundation7. A tiny house remaining on a chassis with a permanent axle is treated as a recreational vehicle and must meet RV codes and licensing requirements7. A manufactured home needs a state installation permit and final inspection, while local land-use requirements still apply22. Those state rules do not answer whether long-term RV living or a particular tiny or manufactured home is allowed on a specific unincorporated Valencia County parcel. We could not confirm Valencia County's RV-occupancy, temporary-camping, minimum-home-size or setback rules; ask Planning & Zoning about the parcel's current district before buying or moving a unit onto the land12.

Building a home in Valencia County: the steps, in order

  1. Ask Valencia County Planning & Zoning to confirm the parcel's current zoning district and whether the proposed home is allowed1216.
  2. Obtain Valencia County zoning and flood review before starting a structure 120 square feet or larger10.
  3. If the parcel needs onsite wastewater, apply to the New Mexico Environment Department and wait for approval before paying or building the system18.
  4. Choose a licensed contractor or determine whether you qualify for a homeowner permit; that permit is for a primary residence and does not automatically authorize the owner to perform electrical, plumbing or mechanical work4.
  5. Submit the state building-permit application with any required county zoning signature and complete plan sets13.
  6. Build to the New Mexico Residential Building Code and request the required state inspections as work progresses623.
  7. Keep the permit number available and the permit posted near the front exterior door when requesting inspection23.

What to check before you buy land in Valencia County

Check the current zoning map rather than relying on a listing, because Valencia County says zoning districts can change16. Ask Code Enforcement whether the building site lies in a designated floodplain; the county issues floodplain certificates for buildings in those areas24. Budget for a site-specific septic design even though 48.7% of county soils are rated without severe limits for a conventional drain field20. Water deserves separate due diligence: Valencia County averages 10.1 inches of precipitation annually and has experienced severe drought in 33.4% of years2526. We could not confirm the well-permit path or a countywide water-connection rule, so identify the water source and ask the relevant utility or state agency before closing. Typical figures are about $1,360 yearly for homeowners insurance, a 0.7% effective property-tax rate and a $1,365 median annual property-tax bill27828.

Watch-outs

  • Valencia County has no building department of its own — the state Construction Industries Division issues the building permit, so budget time for both the county's zoning and flood review and a separate state permit application1410.
  • A driveway onto a state highway needs its own access permit from the New Mexico Department of Transportation before you build it, separate from any county zoning approval29.
  • Long-term RV occupancy, temporary camping, minimum dwelling size and numeric setbacks remain unconfirmed for unincorporated Valencia County; ask Planning & Zoning about the parcel's current district before buying12.

Sources

  1. Valencia County Code Enforcement (2026 county census)
  2. Valencia County Comprehensive Plan, quoted and re-checked
  3. Liquid Waste Regulations, quoted and re-checked
  4. Building Permit Guide for Residential Construction, quoted and re-checked
  5. Building Permit Guide for Residential Construction, quoted and re-checked
  6. Rules, Laws, and Building Codes (New Mexico statewide rule), quoted and re-checked
  7. 14.7.3 NMAC — 2021 New Mexico Residential Building Code (New Mexico statewide rule), quoted and re-checked
  8. Effective property tax rate: Bolthole Index county data
  9. Typical home value (Zillow): Bolthole Index county data
  10. Valencia County Code Enforcement Department (co.valencia.nm.us)
  11. Building Permit Guide for Residential Construction (New Mexico statewide rule), quoted and re-checked
  12. Valencia County Planning & Zoning Department (co.valencia.nm.us)
  13. Building Permit Guide for Residential Construction, quoted and re-checked
  14. New Mexico Construction Industries Division (Albuquerque field office) (co.valencia.nm.us)
  15. Building Permit Guide for Residential Construction, quoted and re-checked
  16. Valencia County Comprehensive Plan, quoted and re-checked
  17. Senate Bill 241, Final Version (New Mexico statewide rule), quoted and re-checked
  18. Apply for a Permit, quoted and re-checked
  19. Apply for a Permit, quoted and re-checked
  20. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  21. NM Environment Department - Onsite Wastewater Program (2026 county census)
  22. 14.12.9 NMAC — Inspections (New Mexico statewide rule), quoted and re-checked
  23. Building Permit Guide for Residential Construction, quoted and re-checked
  24. Valencia County Comprehensive Plan, quoted and re-checked
  25. Annual precipitation: Bolthole Index county data
  26. Share of years in severe drought: Bolthole Index county data
  27. Typical home insurance premium: Bolthole Index county data
  28. Median property tax bill: Bolthole Index county data
  29. 18.31.6 NMAC (New Mexico statewide rule), quoted and re-checked

Written September 27, 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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County locator

Valencia County in New Mexico

35
County map
Valencia County highlighted among the New Mexico counties · colored by Index score

How Valencia County scores

Seclusion46100% ev.
Self-Sufficiency16100% ev.
Admin Boringness45100% ev.
Durability42100% ev.
Property Autonomy38100% ev.
Carry Cost82100% 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 →

$318kTypical home
0.7%Property tax
$1,055Land / acre
10.1"Annual rain
33.4% of yrsSevere drought
20.1 / yr (+17.4)Mid-century 100°F days
36.1 daysMid-century dry spell
0.76" (+6.2%)Mid-century 1-day rain
1.24×Wildfire change factor
100%Forward climate coverage
$1,360Home insurance / yr
1% / yrInsurance growth
1.07%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
40,064Radius comparison (15 mi)
74.2People / sq mi
6.8%Federal land
90.4%Land at 15% slope or less
48.7%Septic soil without severe limits
330,712 acWorkable land screen
3.5%Wooded land
8.7 tonsBiomass / forest ac
56°FAvg temp

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Answers from the rulebook for Valencia County

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

Valencia County rules

  • County-wide zoningPresent (with conditions)

    County zoning administered by Valencia County for unincorporated areas.

    • The county comprehensive plan states that county staff administer the zoning code.
    • Incorporated municipalities and tribal jurisdictions may have separate land-use authority.
    “Valencia County staff play a key role in the health and safety of Valencia County residents by administering the zoning code and ensuring buildings and properties meet required codes and standards.”
  • Zoning districtsPublished (with conditions)

    County zoning districts covering unincorporated Valencia County.

    • The plan states that all unincorporated areas without an identified zoning district are considered Outland District.
    • The source warns that zoning districts may change and the table and map are for general planning purposes; the current zoning district map should be consulted.

    district designations: AP, MR, PRO, OD, RR-1, RR-2, SR, C-1, C-2, I-1, I-2, I-3, PD, and overlays (districts subject to change)

    “All portions of unincorporated Valencia County that do not have an identified zoning district are considered to be Outland District. Since zoning districts are subject to change, this table and the above map should be referenced for general planning purposes only.”
  • Building in a floodplainLimited

    Buildings located in designated floodplain areas of Valencia County.

    • The county comprehensive plan states that Code Enforcement issues floodplain certificates for buildings located in designated floodplain areas.
    • The source does not provide the complete certificate application, fee, or technical standards.
    “Code enforcement staff ensure that buildings meet all code requirements and issue floodplain certificates for buildings located in designated floodplain areas.”

New Mexico rules that apply here

  • Building permitRequired

    Buildings and structures regulated by the New Mexico Residential Code, including residential construction, alterations, repairs, additions, moves, improvements, removals, conversions, and demolitions, and state-administered commercial construction.

    • A permit must be obtained before covered work begins.
    • Residential exceptions include one-story detached accessory buildings used as tool or storage sheds, playhouses, and similar uses not exceeding 120 square feet; fences not over 6 feet high; specified retaining walls; certain water tanks, sidewalks, driveways, finish work, shallow prefabricated pools, playground equipment, window awnings, and detached decks.
    • Unless otherwise exempted, separate plumbing, electrical, and mechanical permits may still be required for otherwise exempted residential work.
    • Commercial applicants must be validly licensed with the appropriate license classification, submit the state building permit application, obtain any required city or county zoning approval, and pay the valuation-based fee before permit issuance.

    residential accessory-building exemption floor area: <= 120 square feet (One-story detached accessory buildings used as tool and storage sheds, playhouses, and similar uses.) · fence exemption height: <= 6 feet · water-tank exemption capacity: <= 5000 gallons (Height-to-diameter or width ratio must not exceed 2:1.) · detached-deck exemption area: <= 200 square feet (Deck must not be more than 30 inches above grade, must not be attached to a dwelling, and must not serve the required exit door.)

    “Except as specified in Section 105.2 IRC, no building or structure regulated by this code shall be erected, constructed, enlarged, altered, repaired, moved, improved, removed, converted, or demolished unless a permit has first been obtained from the building official.”
    One more reviewed finding on this topic
    • Required — Building and structural work regulated by the New Mexico Residential Code in Valencia County.
      “Except as specified in Section 105.2 IRC, no building or structure regulated by this code shall be erected, constructed, enlarged, altered, repaired, moved, improved, removed, converted, or demolished unless a permit has first been obtained from the building official.”
  • Owner-builder exemptionAvailable (with conditions)

    A homeowner obtaining a homeowner permit for a single-family dwelling at the homeowner’s primary residence.

    • The homeowner must apply as general contractor and comply with applicable laws, regulations, standards, codes, and workers-compensation requirements.
    • A homeowner permit does not cover commercial construction or other residential dwellings, including rental dwellings.
    • Licensed subcontractors must obtain permits for their own work.
    • The homeowner may not perform electrical, plumbing, or mechanical work without applying for and passing the required CID examination.
    “The qualifying party for the licensed contractor requesting the permit or the homeowner requesting a homeowner construction permit must sign the application.”
  • Building code adoptedAdopted (with conditions)

    Commercial construction, alteration, relocation, enlargement, replacement, repair, equipment, use and occupancy, location, removal, and demolition of buildings or structures in New Mexico subject to the jurisdiction of the Construction Industries Division.

    • The 2021 New Mexico Commercial Building Code applies on or after July 14, 2023.
    • The rule does not apply when performed pursuant to a permit for which an application was received by CID before July 14, 2023.
    • Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories high with separate means of egress, and their accessory structures, must comply with the 2021 New Mexico Residential Building Code instead.
    • Existing buildings not subject to the residential code undergoing a change of occupancy, repair, alteration, or addition must comply with either the commercial building code or the existing building code, as applicable.
    • The rule adopts the 2021 International Building Code by reference, as amended by the rule.

    effective date: 2023-07-14 (unless a later date is cited at the end of a section) · adopted reference code: 2021 International Building Code (as amended by 14.7.2 NMAC)

    “14.7.2.5 EFFECTIVE DATE: July, 14, 2023, unless a later date is cited at the end of a section. [...] 14.7.2.8 ADOPTION OF THE 2021 INTERNATIONAL BUILDING CODE: A. This rule adopts by reference the 2021 International Building Code, as amended by this rule.”
    One more reviewed finding on this topic
    • Adopted (with conditions) — Detached one- and two-family dwellings, multiple single-family dwellings (townhouses) not more than three stories high with separate means of egress, and their accessory structures in New Mexico subject to the jurisdiction of the Construction Industries Division.
      “14.7.3.5 EFFECTIVE DATE: July 14, 2023, unless a later date is cited at the end of a section. From the date of publication of this rule in the New Mexico register, until December 14, 2023, permits may be issued under either the previously adopted rule, or this rule. After December 14, 2023, permits may be issued only under this rule. [...] A. This rule adopts by reference the 2021 International Residential Code, as amended by this rule.”
  • InspectionsRequired

    State-administered residential and commercial construction requiring building permits.

    • Residential inspections include foundation, concrete slab or under-floor, frame, weather-resistive barrier, and final inspection.
    • Final electrical, plumbing, and mechanical inspections must occur before the final general construction inspection.
    • The building official or Construction Inspector may require additional inspections to establish compliance with the New Mexico Building Code and other enforced laws.
    • Inspection requests require the permit number, inspection type, requestor contact information, and confirmation that work is complete and the permit is affixed near the front exterior door.
    “REQUIRED INSPECTIONS To request an inspection e-mail us at [email protected] or call 505-222-9813 or 877-243-0979”
    One more reviewed finding on this topic
  • Tiny homesAllowed (with conditions)

    Tiny houses used as single dwelling units with complete independent living facilities and placed on a permanent foundation statewide in New Mexico.

    • The unit must provide permanent provisions for living, sleeping, eating, cooking, and sanitation.
    • The tiny house must comply with the New Mexico Residential Code and Appendix AQ.
    • Tiny houses constructed in New Mexico or transported into New Mexico must be inspected for compliance with New Mexico Residential Code requirements.
    • A tiny house on a chassis with a permanent axle is treated as a recreational vehicle and must meet recreational-vehicle codes and licensing requirements while the axle remains in place.
    • If axles are removed and the unit is placed on supports or a foundation, it must comply with the code requirements for tiny houses on a permanent foundation.
    • The rule applies to construction, use, and occupancy subject to the jurisdiction of the Construction Industries Division; construction not addressed in the residential code must comply with the New Mexico Commercial Building Code.

    maximum floor area excluding lofts: <= 400 square feet (The definition excludes loft area and excludes recreational vehicles.) · minimum habitable-space and hallway ceiling height: >= 6 feet 8 inches (Loft ceiling heights may be lower.) · minimum bathroom, toilet-room, and kitchen ceiling height: >= 6 feet 4 inches (None stated in the cited passage.)

    “This appendix shall be applicable to tiny houses used as single dwelling units providing complete independent living facilities for one or more persons”
  • Manufactured homesAllowed (with conditions)

    Installation and resulting residential use and occupancy of new or pre-owned manufactured homes statewide in New Mexico, subject to the Manufactured Housing Division's permitting and inspection rules.

    • An installation permit or combined installation and permanent-foundation inspection permit must be obtained before installation.
    • The permit must identify the licensees performing installation work and the consumer's name and address; a map is required when the address is a post-office box or rural route.
    • An unlicensed homeowner working on the homeowner's own principal residential property must perform the work personally or use division-approved licensees, execute the required acknowledgment, and assume responsibility for applicable federal, state, local, code, and inspection requirements.
    • Final inspection must certify that the manufactured home meets the minimum standards for use and occupancy under the act and regulations.
    • Permits are valid for 180 days, subject to possible time extension for weather or re-manufacturing or permanent-foundation inspections.
    • Each new or pre-owned manufactured home installed in New Mexico requires an installation permit.
    • Failure to obtain a permit subjects the homeowner, dealer, or installer to a fine of double the permit fee.
    • Local requirements, codes, and inspections still apply; the cited state rule does not establish local land-use placement or zoning permission.

    installation permit validity: 180 days (A time extension may be granted for weather-related delay or inspections involving a home being re-manufactured or installed on a permanent foundation.) · permit for certain alteration, modification, or repair: 15 USD (Available upon written request and excludes warranty work performed under a previous permit and installation.) · fine for installation without permit: double the permit fee (Applies to the homeowner, dealer, or installer.)

    “inspectors shall certify on the permit, or upon any inspection report, that the manufactured home meets the minimum standards for use and occupancy”
  • Who permits septicState

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

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

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

    “20.7.3.1 ISSUING AGENCY: New Mexico Environmental Improvement Board.”
    One more reviewed finding on this topic
    • State — Onsite wastewater systems in Valencia County.
      “Bernalillo County is the only county in New Mexico that has its own onsite wastewater ordinance.”
  • Septic permitRequired

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

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

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

    “No person shall install or have installed a new on-site liquid waste system or modify or have modified an existing on-site liquid waste system, unless that person obtains a permit issued by the department, including payment of the permit fee, prior to construction of such installation or modification.”
    One more reviewed finding on this topic
    • Required — Installation, registration, or modification of onsite liquid-waste systems in Valencia County.
      “Pay for Permit only after you are contacted by NMED to inform you that your permit was approved or approved with conditions. DO NOT SUBMIT PAYMENT BEFORE NOTICE OF APPROVAL.”
  • Septic inspectionRequired

    NMED inspection of onsite wastewater installations in Valencia County.

    • Inspection must be requested 48 hours or two business days in advance.
    • The system must not be covered before inspection.
    • An approved inspection results in a Permit to Operate.
    “Request Inspection by NMED 48 hours (2 business days) in advance (DO NOT COVER BEFORE INSPECTION)”
  • Off-grid sanitationLimited

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

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

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

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

    Residential and commercial units using an on-site liquid waste system when a public sewer is available and connection is required by the local authority with jurisdiction.

    • A public sewer is deemed available when it has capacity and is located in a thoroughfare, right-of-way, or easement abutting the lot.
    • The on-site system must be properly abandoned within 30 days after connection.
    • The state rule does not itself identify which local authority will require connection.

    abandonment deadline after sewer connection: 30 days

    “All residential and commercial units utilizing an on-site liquid waste system shall connect to a public sewer upon availability and if required in accordance with the local authority that has jurisdiction.”
  • Agricultural exemptionConditional

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

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

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

    “the sale, lease or other conveyance of any parcel that is thirty-five acres or larger in size within any twelve-month period; provided that the land has been used primarily and continuously for agricultural purposes, in accordance with Section 7-36-20 NMSA 1978, for the preceding three years;”
  • Subdividing landRegulated (with conditions)

    Division of land statewide in New Mexico into two or more parcels for sale, lease, other conveyance, or building development, subject to the New Mexico Subdivision Act and its statutory exceptions.

    • The source defines subdivision as division of a surface area of land, including land within a previously approved subdivision, into two or more parcels for sale, lease or other conveyance or for building development, whether immediate or future.
    • The Act contains exceptions, including certain agricultural conveyances, grazing or farming divisions, municipal-boundary divisions, family transfers, divisions creating no parcel smaller than 140 acres, and other listed exceptions.
    “The board of county commissioners of each county shall regulate subdivisions within the county's boundaries.”
  • Driveway accessRequired

    Permanent or temporary direct vehicular access from property in close proximity to or adjoining a New Mexico state highway.

    • An access permit must be issued by the New Mexico Department of Transportation before constructing or modifying covered access.
    • Access permits are issued only when the application complies with 18.31.6 NMAC.
    • The department or an approved issuing authority may impose terms and conditions.
    • The rule concerns state highways under the jurisdiction of the state transportation commission; it does not establish a universal permit requirement for every non-state roadway.
    • For additional traffic from expansion or redevelopment, the property owner must contact the department to determine whether a new application or access modification is required; no new application is required if the department determines modifications are unnecessary.
    “no person shall construct or modify any permanent or temporary access [...] without an access permit issued by the New Mexico department of transportation.”
  • Permit feesPublished (with conditions)

    State building-permit fees for residential construction in Valencia County.

    • The fee covers plan review, permit notice, and required inspections.
    • The amount is based on project valuation and is calculated by the Division.
    • Homeowner construction permits use established valuation tables.

    fee basis: project valuation (amount calculated by CID)

    “The fee, which covers plan review, the permit notice and required inspections, is based on the valuation amount. Our office will calculate the valuation and fee for you.”
    One more reviewed finding on this topic
    • Variable (with conditions) — New Mexico Construction Industries Division permitting fees for covered construction work statewide.
      “Permitting Fees are based upon type of construction, square footage, type of materials and construction costs.”
  • Permit processPublished (with conditions)

    Residential building-permit application process for projects in Valencia County.

    • Application must identify the owner, contractor if applicable, use, county, project location, legal description, directions, work description, materials, and square footage.
    • Zoning approval and signature may be required before applying for the state building permit.
    • Two complete sets of dimensioned plans are required.
    “To obtain a building permit, the applicant shall fill out an APPLICATION for STATE BUILDING PERMIT form.”
    One more reviewed finding on this topic
    • Published (with conditions) — Construction Industries Division permit applications in New Mexico.
      “Permits can also be completed using our online permitting portal.”
  • county zoning authorityGeneral

    New Mexico counties may adopt zoning ordinances for all or any portion of county territory that is not within a municipality's zoning jurisdiction.

    • The county zoning authority's ordinance applies only to territory not within the zoning jurisdiction of a municipality.
    • Municipalities may have concurrent extraterritorial zoning authority in specified circumstances, including population-based distances, overlapping extraterritorial jurisdictions, and additional territory placed under municipal jurisdiction by county-municipal agreement.
    • Concurrent municipal authority is exercised pursuant to an extraterritorial zoning authority or joint powers agreement and may be exercised whether or not the county has enacted a comprehensive zoning ordinance.
    • In the absence of a county zoning ordinance, a qualified-elector petition signed by at least twenty-five percent of votes cast for governor at the preceding general election may require the board of county commissioners to adopt a county zoning ordinance within one year.
    “A.  a county zoning authority may adopt a zoning ordinance applicable to all or any portion of the territory within the county that is not within the zoning jurisdiction of a municipality;”
  • county building authorityLimited

    New Mexico counties that qualify as an authority having jurisdiction may administer permitting, inspection, and enforcement for residential construction in unincorporated areas and enforce applicable New Mexico construction codes.

    • A county must have a full-service building department employing a full-time certified building official and have permitting, inspection, and enforcement authority over general construction, electrical, and mechanical-plumbing trades.
    • A county established as an authority having jurisdiction before July 1, 2009 may continue with authority over specified trades without a full-service building department until it relinquishes that authority.
    • Construction work subject to the Construction Industries Licensing Act and applicable rules requires the applicable permit before construction or specified installation, alteration, repair, maintenance, or demolition work begins, unless an applicable statute or rule provides otherwise.
    • The statewide rule is effective March 10, 2022, unless a later date is cited at the end of a section.
    • A permit may be issued to a homeowner only subject to the limitations of 14.5.2.18 NMAC and an annual permit under 14.5.2.19 NMAC.
    ““Authority having jurisdiction” “AHJ” means the state or a municipality, county or other political subdivision that has a full-service building department employing a full-time certified building official and has permitting, inspection and enforcement authority over the general construction, electrical and mechanical-plumbing trades within its jurisdiction.”

Still unanswered

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

  • Certificate of occupancy — Certificate-of-occupancy requirements for Valencia County residential projects.
  • Minimum dwelling size — Minimum dwelling size in unincorporated Valencia County.
  • Minimum lot size — Minimum lot size in unincorporated Valencia County.
  • Setbacks — Setbacks in unincorporated Valencia County.
  • Lot coverage — Lot coverage in unincorporated Valencia County.
6 more unanswered
  • Building height
  • Living in an RV
  • Camping on your land
  • Accessory dwellings
  • Well permit
  • Short-term rentals

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

Water rights & wells in Valencia County

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

Over-appropriated / declining

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

Household wellPermit required (issued by right)

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

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

NM OSE domestic well rules, 19.27.5 NMAC ↗
  • Middle Rio Grande Basinpartial of county

    Effectively fully appropriated; OSE requires new depletions to be offset by retiring/transferring existing rights. A new home cannot get a fresh non-domestic right without an offset, but a 72-12-1.1 household domestic well remains available by right (metered).

    NM OSE Water Rights District 1 ↗

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

Living off-grid in Valencia County, New Mexico

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

Valencia County scores 35/100 on the Bolthole Index, a marginal county profile. Its strengths: manageable long-term carry cost. Watch-outs: weak self-sufficiency basics: only 10.1″ of rain a year, in severe drought 33.4% of years and a weaker property-autonomy legal backdrop.

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

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

How much does land cost in Valencia County, New Mexico?

Land in Valencia County runs about $1,055 per acre, based on the latest county data.

What is the water situation in Valencia County?

Valencia County gets about 10.1" of rain a year, with severe drought in roughly 33.4% of years. On water rights, Valencia County lies in the Middle Rio Grande Basin — Effectively fully appropriated; OSE requires new depletions to be offset by retiring/transferring existing rights. A new home cannot get a fresh non-domestic right without an offset, but a 72-12-1.1 household domestic well remains available by right (metered)..

How remote is Valencia County?

A typical private-land location has about 40,064 people within 15 miles and 1,257,554 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

Going off-grid in Valencia County means bringing your own water and power. The kit we’d start with:

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How Valencia compares in New Mexico

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