ADU / Guest House Cost in New Mexico
ADU / Guest House in New Mexico costs $160–$390 per sq ft in 2026. A typical 500 sq ft project averages $125,000. New Mexico is in the Southwest region, where labor and materials run on the average end of national pricing.
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How much does an adu / guest house cost in New Mexico? An adu / guest house in New Mexico costs $80,000–$195,000 in 2026, with most homeowners paying around $125,000 for a typical 500 sq ft project.
- Per sq ft
- $160–$390
- Typical range
- $80,000–$195,000
- Average
- $125,000
- Labor share
- 52%
New Mexico Average Cost (2026)
Cost Breakdown
Based on a 500 sq ft project in the Southwest region. Actual costs vary by contractor, site conditions, and material choices.
ADU / Guest House Cost by Size in New Mexico
New Mexico pricing for common adu / guest house project sizes (2026).
| Project size | Low | Mid | High |
|---|---|---|---|
| 250 sq ft | $40,000 | $62,500 | $97,500 |
| 500 sq ft | $80,000 | $125,000 | $195,000 |
| 1,000 sq ft | $160,000 | $250,000 | $390,000 |
Based on $160–$390 per sq ft in the Southwest region.
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Return on Investment
How much value does a adu / guest house add to your home at resale?
How ADU / Guest House compares to other projects
ROI figures based on Remodeling Magazine Cost vs. Value Report 2024, national averages. Actual resale value depends on your market, home price tier, and project quality.
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Materials & Supplies
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Frequently Asked Questions
How much does an adu / guest house cost in New Mexico?
In New Mexico, a typical 500 sq ft adu / guest house project costs between $80,000 and $195,000, with a mid-range average of $125,000. New Mexico is in the Southwest region.
How much is labor for an adu / guest house in New Mexico?
Labor accounts for approximately $65,000 of the total cost for a 500 sq ft adu / guest house project in New Mexico. The Southwest has moderate labor costs, though rapidly growing metros like Phoenix and Austin have seen rates increase in recent years.
How do I find a contractor for an adu / guest house in New Mexico?
Get at least 3 quotes from licensed local contractors, verify their license with New Mexico's contractor licensing board, and check reviews on Google or the BBB. Use our free estimate tool to understand fair pricing before you negotiate.
Does an adu / guest house add value to your home in New Mexico?
On average, an adu / guest house recoups about 41% of its cost at resale nationwide. For a $125,000 project in New Mexico, that's approximately $51,250 in added home value. Actual ROI varies by neighborhood and market conditions.
Other Home Improvement Costs in New Mexico
ADU / Guest House Cost in Nearby States
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How big is your ADU / Guest House?
A studio ADU is ~300 sq ft. A 1-bed ADU is ~500 sq ft. A 2-bed ADU is ~700–900 sq ft.
Pro Tips
- Get at least 3 contractor quotes
- Ask about permit requirements
- Budget 10–20% contingency
- Check contractor licenses
Find a ADU / Guest House Pro Near You
Get free quotes from top-rated local pros. No obligation.
Sponsored — BuildCost may earn a referral fee at no extra cost to you. This site connects you with independent service professionals through a third-party matching platform.
Ready to Hire a ADU / Guest House Contractor?
Use your estimate to get competitive bids from licensed local contractors. Getting multiple quotes is the best way to avoid overpaying.
Local contractor matching coming soon.