An ADU builder in Albuquerque is a licensed contractor who designs and constructs accessory dwelling units — detached backyard units, garage conversions, attached additions, and junior ADUs (JADUs). Because an ADU is a complete second dwelling, the builder coordinates foundation, framing, plumbing, electrical, and HVAC work and pulls it through Albuquerque's permit process and utility connections. Not every general contractor has built one, so the right builder is one with ADU-specific experience in New Mexico.
What ADU Builders Cost in Albuquerque [4]
Based on our Albuquerque cost data, expect the following ranges from local ADU builders. Quotes for the same scope typically vary 20-40% between contractors, so getting at least three bids is the single best way to control cost.
| New Detached ADU (all-in) | $120,000-$240,000 |
| Cost per Sq Ft | $160-$320 |
| Garage Conversion | $60,000-$130,000 |
| Prefab / Modular ADU (installed) | $80,000-$170,000 |
| City Permit & Plan Review | $2,500-$5,000 (valuation-based) - Confirm with ABQ Planning |
| Impact Fees | $1,500-$3,500 depending on service area - Confirm with ABQ Planning |
For a full line-item breakdown, see our Albuquerque ADU cost guide. To confirm what you're allowed to build before you hire, review the Albuquerque ADU rules (max detached size: 750 sq ft (650 sq ft and 18 ft height in the Downtown CPO-3 overlay); owner-occupancy: Not required).
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How to Vet an ADU Builder in Albuquerque
- License: Confirm a current contractor's license in New Mexico and that it's in good standing. Ask for the license number and verify it with the state board.
- ADU-specific experience: Ask how many ADUs they've completed in or near Albuquerque and request addresses or photos. ADU permitting and setbacks differ from a kitchen remodel.
- Portfolio & references: Get references from recent ADU clients and, if possible, visit a finished unit.
- Insurance: Verify general liability and workers' compensation coverage. Ask for a certificate of insurance.
- Written, detailed bid: Insist on an itemized, fixed-price or clearly-scoped bid — not a verbal estimate. It should state whether permits ($2,500-$5,000 (valuation-based) - Confirm with ABQ Planning), plan check (3-6 weeks), and impact fees ($1,500-$3,500 depending on service area - Confirm with ABQ Planning) are included.
- Permit handling: Confirm they manage Albuquerque's permit process ("Site plan + building permit (by-right in eligible zones; no public hearing). Six-step process: site plan, building permit, corrections, fees, approved plans, inspections", typically 6-10 weeks (faster with the city's pre-approved casita designs)) and who is responsible if revisions are required.
- Payment schedule: Avoid large upfront payments. A reasonable schedule ties payments to completed milestones.
Questions to Ask Before You Hire
- How many ADUs have you built in Albuquerque in the last two years?
- Is your bid fixed-price, and what would trigger a change order?
- Are permits, plan check, and utility connection fees included?
- What's a realistic timeline, including permit review (6-10 weeks (faster with the city's pre-approved casita designs)) and construction?
- Who is my point of contact and how are delays communicated?
- What warranty do you provide on workmanship?
- Can you share three recent New Mexico ADU client references?
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