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Building an Accessory Dwelling Unit requires complex zoning, structural, and utility permits.
Permit required
Do you need a permit for ADU Construction in Chaves County?
In New Mexico, a ADU Construction requires a building permit.
An accessory dwelling unit (ADU) always requires a building permit because it adds a habitable dwelling, including electrical, plumbing, mechanical permits and egress/zoning review. Plans are reviewed under the Statewide code (IRC 2021); apply through Chaves County Building Inspections before work begins.
Source: Statewide, IRC 2021 · Verified 2026 by StateDataIndex
With a growing population of around 64,217 residents, Chaves County maintains a relatively streamlined permitting process compared to major urban hubs. Processing typically takes 1 to 3 weeks.
Code Compliance & Inspections
Work on your ADU Construction in Chaves County will be inspected to ensure full compliance with the current New Mexico Building Code.
Local Zoning & Setbacks in Chaves County
Regardless of the state permit rule above, Chaves County still enforces property-line setbacks and local zoning for your ADU Construction. A permanent foundation or any electrical/plumbing hookup can also change what is required, so confirm with Chaves County Building Inspections before building.
Zoning & Cost Factors
New Mexico zoning combines modern municipal codes in cities with historical preservation overlays, particularly regarding adobe architecture in places like Santa Fe. Fortunately, New Mexico maintains relatively builder-friendly regulations, keeping base permit fees competitive.
Estimated municipal base fee: $383–$585
This is a planning estimate only — actual fees in Chaves County depend on your project valuation. A typical breakdown looks roughly like:
- Application Fee: ~$135
- Plan Review Fee: ~$90
- Inspection Fee: ~$225
Always confirm exact fees with your local building department before applying.
Cost Comparison: Chaves County vs State Average
State Average Base Fee
Chaves County Estimated Base Fee
*Chart represents median application base fees and does not include project valuation percentages.
Chaves County Building Department
Office: Chaves County Building Inspections
Address: 1 St Mary's Pl, Roswell, NM 88203, USA
Phone: (575) 624-6606
Source: official Chaves County government records. Hours and procedures can change — call ahead to confirm.
How to Apply in Chaves County
In Chaves County, you or your contractor typically submit blueprints and a property survey to the local building department. Call ahead to confirm hours and accepted payment methods.
ADU Construction Requirements in Chaves County
Typical Submittal Package
When applying for a ADU Construction permit, you or your contractor will generally need to submit the following documentation for the city's review:
- Comprehensive architectural and structural plans
- Foundation engineering reports
- Sewer, water, and utility connection plans
- Site plan showing property lines and setbacks
Standard Ordinances & Processing Time
Key code points for a ADU Construction in Chaves County: ADUs typically have maximum square footage limits (often 800-1200 sq ft), height restrictions, and usually require dedicated off-street parking depending on local zoning.
Estimated processing time in Chaves County: 10 to 14 business days.
Frequently Asked Questions
What happens if I build a ADU Construction without a permit in Chaves County?
Building without authorization is considered a code violation. The local government can issue a Stop Work Order, forcing you to halt construction immediately. You may be subject to retroactive permit fees (often double the original cost), daily fines, or even a mandate to tear down the unpermitted work at your own expense.
Can a homeowner pull their own ADU Construction permit in New Mexico?
Yes. New Mexico generally allows property owners to act as their own general contractor under an Owner-Builder exemption. If you take this route, you assume full legal and financial liability and must ensure all work complies with the New Mexico Building Code.
How much does a ADU Construction permit cost in Chaves County?
As a planning estimate, base municipal fees for a ADU Construction permit in Chaves County typically fall between $383 and $585. The final amount depends on your project valuation, so confirm the exact figure with the local building department.
How long does it take to get a ADU Construction permit in Chaves County?
Based on the size of Chaves County, the typical processing time is 10 to 14 business days. Times vary with the season and the building department application volume.
Where do I apply for a ADU Construction permit in Chaves County?
You can apply through the Chaves County Building Inspections or online via the county permit portal. For questions, call (575) 624-6606.
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Planning an ADU? Tools homeowners use in the design and layout phase:
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Backyard ADU Design Guide (Book)
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Laser Level
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Franklin ProSensor Stud Finder
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25ft Tape Measure
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Other Permit Types in Chaves County
Planning another home improvement project? Check the requirements and fees for:
Nearby Jurisdictions in New Mexico
Building near the county line? Check requirements for neighboring areas: