Building permits, zoning and septic rules in Portales, New Mexico

At a glance

Building permits

Start with Portales planning; building permitting and inspections through Clovis¹

Zoning

City zoning code applies inside Portales²

Septic permits

NMED permits new or modified onsite systems⁵

RV living

We could not confirm residential RV permission; ask Portales planning¹

Tiny homes

State construction standards apply; confirm city placement with Portales planning⁶¹

Owner-builder

Conditional homeowner permit for your primary residence; permits and inspections still apply⁷

Who to call

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Do you need a building permit in Portales, NM?

Covered construction requires a building permit before work begins under New Mexico’s statewide permit rule, subject to listed exemptions.⁸ For work inside Portales city limits, the city directs applicants to Portales planning first and to the City of Clovis for building permitting and inspections.¹ Ask Portales planning which initial paperwork your project needs, then confirm the building application and inspection requirements with Clovis Building Safety.¹ A homeowner permit is available for eligible work on your primary residence, but zoning approval, floodplain determination, fees, permits and inspections still apply.⁷

Who handles building permits and zoning in Portales?

Portales’ Community Services / Planning Department is the first stop for initial city paperwork before building permitting through Clovis.¹ Call (575) 356-8449, Opt 4, or email p&[email protected]; the Portales office is at 1028 W Community Way, Portales, NM 88130.¹ Portales lists the Clovis building contact as (575) 769-7829 and [email protected], at 1221 Mitchell Street, Clovis, NM 88101.⁹ Building approval and wastewater approval are separate: NMED administers onsite septic permitting inside Portales.³ Contact NMED’s Clovis field office for septic permitting questions and confirm which field office should receive your application.¹⁰

Does Portales have zoning, lot-size rules and setbacks?

Portales has an adopted zoning code, including downtown zoning districts.² The downtown provisions apply to new construction, including parking-lot construction or expansion within a Downtown District.¹¹ Before buying a Portales parcel, ask Portales planning to identify the parcel’s zoning district and confirm the proposed residential use.¹ We could not confirm the complete citywide district schedule, minimum lot size, setbacks, minimum dwelling size or lot coverage; ask Portales planning for the standards attached to the specific parcel.¹¹¹ A homeowner permit still requires zoning approval, so choosing to build the home yourself does not remove that step.⁷

How do septic permits work inside Portales?

NMED handles permits for new or modified onsite liquid-waste systems inside Portales.³⁵ Applications require ownership, site, system-sizing, soil and hydrological documentation; NMED may approve, impose conditions or deny the application.⁵ Pay after NMED sends approval or approval with conditions; the listed conventional-system permit fee is $225 for systems up to 1,000 gallons per day.⁵ Request inspection at least 48 hours in advance and leave the system uncovered until inspection; an approved inspection results in a Permit to Operate.¹² Where a Portales lot requires onsite wastewater, obtain the septic permit before constructing, modifying or moving a dwelling onto the lot.¹³

Can you live in an RV or tiny home in Portales?

We could not confirm permission for residential RV occupancy or temporary camping on private land in Portales; ask Portales planning about the proposed use before relying on an RV as housing during construction.¹ New Mexico’s tiny-house rule distinguishes a unit with a permanent axle from a unit placed on supports or a foundation after axle removal: the former is treated as an RV, while the latter must meet tiny-house building-code requirements.⁶ That state construction distinction does not establish Portales zoning permission; Portales has its own zoning code.⁶² We could not confirm city placement rules for tiny homes, manufactured homes or accessory dwellings; ask Portales planning about the parcel and the exact housing type.¹

Building a home in Portales: what are the steps?

1. Start with Portales planning to establish the initial city paperwork needed before applying for building permits through Clovis.¹
2. Ask Portales planning about flood exposure; construction in the city’s flood zone requires an Elevation Certificate and Floodplain Permit Application.¹
3. Resolve sanitation before building: if the lot needs an onsite wastewater system, obtain NMED’s septic permit before constructing or moving the dwelling onto the lot.¹³
4. Obtain the applicable building permit before covered work begins and coordinate building inspections through Clovis.⁸⁹
5. Arrange NMED’s septic inspection in advance and do not cover the system before inspection.¹²

What should you check before buying property in Portales?

For a Portales property with an existing septic system, New Mexico requires the transferor to have the system evaluated before transfer by a qualified evaluator using a department-approved form.¹⁴ Ask for that evaluation before committing to a property that relies on onsite wastewater.¹⁴ We could not confirm Portales’ public-water or sewer connection requirement or private-well rules; ask Portales planning to identify the applicable city utility requirements before planning an off-grid home.¹ The state’s liquid-waste rule recognizes that more stringent local requirements may apply.¹⁵ Ask Portales planning about past flooding and the flood protection level appropriate for the property.¹

Watch-outs

• Portales building permitting runs through Clovis, but Portales planning may require initial paperwork first.¹
• A homeowner permit excludes rental and commercial property and does not authorize homeowner HVAC, natural-gas or LP-gas work.⁷
• We could not confirm Portales’ RV occupancy, utility connection or private-well rules; ask Portales planning before buying for those uses.¹

Sources

1. Portales Community Services / Planning Department (portalesnm.gov)
2. Ordinance No. 676 — Downtown Zoning Districts (Portales), quoted and re-checked
3. Apply for a Permit — Onsite Wastewater Program (Portales), quoted and re-checked
4. nmlegis.gov (New Mexico statewide rule), quoted and re-checked
5. Apply for a Permit — Onsite Wastewater Program (Portales), quoted and re-checked
6. 14.7.3 NMAC — 2021 New Mexico Residential Building Code (New Mexico statewide rule), quoted and re-checked
7. 14.5.2 NMAC — Permits (Portales), quoted and re-checked
8. Building Permit Guide for Residential Construction (New Mexico statewide rule), quoted and re-checked
9. City of Clovis Building Safety — Portales building permits and inspections (portalesnm.gov)
10. NMED Onsite Wastewater Program — Clovis Field Office (env.nm.gov)
11. Ordinance No. 676 — Downtown Zoning Districts (Portales), quoted and re-checked
12. Apply for a Permit — Onsite Wastewater Program (Portales), quoted and re-checked
13. 20.7.3.401 NMAC — Permitting; General Requirements (New Mexico statewide rule), quoted and re-checked
14. Property Transfer Evaluations (New Mexico statewide rule), quoted and re-checked
15. 20.7.3 NMAC — Liquid Waste Disposal and Treatment (New Mexico statewide rule), quoted and re-checked

Written October 11, 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.