Attached ADU

Decor Builders is a San Jose-based ADU contractor with 15+ years of Bay Area experience. They offer full-service ADU design and construction, including granny flats and in-law suites, handling permits, engineering, and project management.

Virginia ADU construction by Commonwealth Contractors. Expert guidance on zoning, permits & building codes. Options include detached ADUs, garage conversions & basement units. Costs range $150–$300/sq ft. Boost property value & renta... read more

JD Becker Homes is a veteran-owned ADU contractor in Prosper, TX, specializing in detached ADUs, attached ADUs, garage conversions & in-law suites. Full-service design-build with transparent pricing & local permit expertise.

Goshen Tiny Homes is a licensed ADU builder in Florida specializing in site-built accessory dwelling units. Pricing ranges from $75K–$255K fully turnkey. Projects take 10–12 months, covering permits, construction, and inspections statewide.read more

Lakeside ADU & Home Planning, based in Lake Stevens, WA, is a full-service ADU builder serving the Puget Sound Region. They specialize in backyard cottages, mother-in-law suites, garage conversions, and new builds, managing design, permitting,... read more

Los Angeles ADU contractor The ADU Builder offers 10+ years of experience in ADU construction, garage conversions, JADUs, custom homes & remodels. They guide clients through design, permits, financing & building with quality craftsmanship.... read more

YAHUA Construction Inc. is a California-based licensed general contractor with 20+ years of experience. Specializing in ADUs, remodeling, MEP, roofing, and more, they serve the Bay Area with quality, sustainable construction.

ADUs offer self-contained living with kitchen, bath & bedroom for rental or family use. Room additions expand existing home space. Above & Beyond Construction serves Seattle & Puget Sound homeowners with both project types.

Virginia ADUs—backyard cottages, garage conversions, basement apartments—add living space or rental income. Premier Structures builds compliant ADUs statewide, navigating local zoning, permits, and size rules (250–1,200 sq ft).

Licensed, veteran-owned ADU builder in Van Nuys. Detached, attached and junior ADUs plus garage conversions, with design, permits and construction handled under one roof.

Hendren Custom Homes builds ADUs in Valparaiso & Porter County, NW Indiana. From detached backyard cottages to garage conversions, costs range $40K–$130K with 4–8 month timelines. Expert guidance on zoning, permits & custom design.

Stel Builders, a San Diego ADU contractor, designs and builds detached, attached, and garage conversion ADUs. This design-build firm handles permitting, zoning, and construction, offering in-law suites, granny flats, and multigenerational layouts ... read more

HBC Construction, based in Fremont, CA, specializes in ADU building, garage conversions, new homes & additions across the Bay Area. Licensed, code-compliant, full-service from planning to completion.

Goshen Tiny Homes is a Florida ADU builder specializing in custom, site-built accessory dwelling units. Projects cost $75K–$200K, take 10–12 months, and include full permits, construction, appliances, and warranties.