Cost to ADU / In-Law Suite Construction in Albuquerque, NM (2026)

If you’re budgeting a adu / in-law suite construction in Albuquerque, most projects run $56,136-$233,901, 6% below the $150,000 national average. What moves that number most is usually one thing: ADU Type. On its own it can swing the cost by $30,000 - $250,000, so that’s the decision to slow down on before you sweat the smaller stuff.

Easiest place to save: Choose a garage conversion over new construction. The cost difference is $50,000-$150,000 and the result is functionally the same - a legal dwelling unit that generates rental income.

$56,136-$233,901 in Albuquerque

6% below the national average · 0.94x cost multiplier

Expect to pay $56,136-$233,901 for a adu / in-law suite construction in Albuquerque, about 6% below the national benchmark. The Southwest region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at Albuquerque prices.

Cost Breakdown in Albuquerque

Line ItemLowMidHigh
Cost per sq ft$140$234$374
Materials$26,880$62,400$115,200
Labor$28,927$63,277$99,436
Permits$3,840$7,680$14,400
Design$4,800$9,600$19,200
Total$64,447-7% vs. national avg$142,957-7% vs. national avg$248,236-6% vs. national avg

Budget

Garage conversion ADU (400 sq ft) - kitchen, bathroom, bedroom, electrical upgrade, no exterior changes. Most affordable ADU type.

Mid-Range

Detached backyard ADU (600 sq ft) - new construction on concrete foundation, full kitchen, bathroom, bedroom, separate utilities, standard finishes

Premium

Custom detached ADU (800+ sq ft) with high-end finishes, vaulted ceilings, full kitchen, 1.5 bathrooms, separate utilities and address, premium landscaping

Material Options

Material prices below are national averages; availability in Albuquerque may shift costs slightly.

MaterialCost/UnitBest For
Garage Conversion ADU$80 - $200 per sq ftHomeowners with detached garages who want the lowest-cost path to rental income or multi-generational livingLowest cost, structure exists, fastest permitting in many states, minimal site work
Basement Conversion ADU$100 - $225 per sq ftHomes with full-height unfinished basements in markets where ADUs are in demandUses existing space, natural privacy from main house, lower cost than new construction
Above-Garage Addition ADU$175 - $325 per sq ftProperties where lot coverage is maxed out or where separation from the main house is a prioritySeparate from main house living area, good privacy, no lot coverage increase
Prefab / Modular ADU$150 - $300 per sq ft (including site work)Markets where prefab ADU companies operate and homeowners who want faster construction timelinesFaster construction, predictable pricing, some high-quality options, off-site quality control
Custom Stick-Built Detached ADU$200 - $400+ per sq ftHomeowners who want a long-term investment that looks like a natural part of the propertyFully customizable, can match main house architecture perfectly, highest long-term value

Other Projects in Albuquerque

Albuquerque Estimate

Typical Range

$56,136-$233,901

vs. National Average

6% below national

Cost Multiplier

0.94x

Cost Per sq ft

$140-$374

This 0.94x estimate prices Albuquerque labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.

See national average costs →