Basement Conversion

An ADU (accessory dwelling unit) is a secondary dwelling attached or detached from a primary home. Types include garage conversions, basement units, and backyard cottages. Covenant Homes builds custom ADUs in Florida and North Georgia.

Massachusetts ADUs are now legal by right statewide after 2024 legislation. MBA Builders offers full-service ADU construction across Greater Boston, with structured preconstruction planning and builds starting around $450/sq ft.

Back Creek Builders constructs ADUs and in-law suites in Maryland, handling design, permitting, and build. Project types include garage conversions, detached cottages, and basement suites. Founded by Eric Young and Jason Gelblum, they manage zoning compliance and full construction.

Harjo Construction builds AADUs & DADUs in Seattle with 300+ projects since 2010. Costs range $275K–$650K, max 1,000 sq ft, 4–6 month build time. Seattle removed owner-occupancy rules, boosting ADU rental potential.

Regulus Construction is a licensed ADU contractor serving MetroWest Massachusetts. They build detached backyard cottages, garage conversions, and in-law suites, managing design, permitting, and construction across 40+ towns.

EAC Design Build is an Austin, TX remodeling company offering ADU installation, garage conversions, kitchen & bathroom remodeling, home additions, and whole house renovations. Serving 400+ Texas homeowners with quality craftsmanship and warranty-backed work.

Northbay Home Solutions offers full-service ADU construction in San Rafael, San Francisco & North Bay. Services include detached ADUs, garage conversions & JADUs, covering design, permits & build.

G.J. Gardner Homes Selma builds quality ADUs in California with 30+ years experience. Services include detached ADUs, garage conversions & basement apartments. Their 7-step process covers consultation to handover, boosting property value & rental income.

Sensible Home Solutions builds ADUs, in-law suites & secondary living spaces across Maine, Massachusetts & New Hampshire. Services include detached units, garage conversions & basement ADUs. Free discovery call available.

Live Dream Colorado helps Colorado Springs property owners build ADUs—detached backyard cottages or attached in-law suites. Key factors include zoning, lot size, setbacks, and owner-occupancy rules. LDC guides clients through planning and construction.

North Shore ADU Home Builders LLC builds custom ADUs up to 900 sq ft across Massachusetts. Services cover design, permits & construction. Rental income ranges $1,800–$3,500/month. Property values may rise $100K–$250K.

EHD Builders offers ADU construction services in Los Angeles, CA, including garage conversions, detached units & additions. Costs range from $150K–$350K+. Services cover permits, framing, plumbing, electrical & more.

Central Coast ADU offers full ADU planning, design, and permitting services for homeowners on the Central Coast. From granny flats to garage conversions, they deliver construction-ready plans and approved permits.

ADU Builders CT LLC, based in Westport, CT, specializes in custom ADU design and construction, tiny homes, and home remodeling. Licensed in Connecticut (#NHC.0018259) with 35+ years of experience, they offer detached, attached, basement, attic, garage, and pool house ADUs statewide.

Comfort ADU is an Austin, TX-based general contractor specializing in ADU design and construction. Services include detached ADUs, garage conversions, attached units, and basement conversions, helping homeowners add rental income, boost property value, and enable multigenerational living.