ADU Contractors

Patco Homes offers full-service ADU construction, managing feasibility, design, permits, and build. Ideal for granny flats, in-law suites, or detached ADUs, they guide homeowners through every step with one dedicated team.

Looking for a beautifully designed accessory dwelling unit (ADU) or Casita in San Antonio, Boerne, New Braunfels, or the Texas Hill Country? At Rooted Tiny Homes, we specialize in crafting permanent, stick-built ADUs that are as unique as your vision. Whether you’re dreaming of an affordable guest house, an income-generating rental, or a luxurious backyard retreat, we build ADUs that blend perfectly with your lifestyle and your property.

WM Construction is a licensed ADU contractor in Los Angeles offering full-service builds, from site assessment and design to permitting and post-construction support, helping homeowners add granny flats, garage conversions, and in-law suites compliantly.

Cornerstone Tiny Homes is a licensed ADU builder in Longwood, FL, specializing in small footprint foundation homes and tiny homes on wheels. They build custom in-law suites, backyard cottages, and detached ADUs compliant with Florida Building Code.

COOPER Design Build offers custom ADU construction in Portland, OR. With 30+ years of experience, they handle design, permitting, zoning, and full construction management for detached accessory dwelling units up to 800 sq ft.

At Hobart Contracting, we design and build high-quality Accessory Dwelling Units (ADUs) that fit your lifestyle and property. Whether you’re planning a guest house, in-law suite, rental unit, or private retreat, our team creates spaces that are functional, beautiful, and built to last.

Dakota Cabins LLC, Fargo's trusted ADU builder since 1991, specializes in detached ADUs, garage conversions, basement units & attached suites. Full permitting support, custom design & code-compliant construction for rental income or family housing.

Nanostead is a custom small home and ADU builder in Greenville, SC, specializing in accessory dwelling units, backyard cottages, and energy-efficient residences built with craftsmanship and long-term value in mind.

Eastern ADU is a licensed ADU builder in Wilmington, NC, offering custom accessory dwelling unit design and construction across Eastern North Carolina, including detached ADUs, attached units, and garage conversions.

Casita Home Builders LLC specializes in custom ADUs, granny flats, pool houses, and home additions in Cincinnati & Northern Kentucky. ADUs boost property value 25–35%, cost $200–$300/sqft, and offer flexible financing options.

Manzanita Design Build is an East Bay ADU contractor specializing in accessory dwelling units. Serving Berkeley, Oakland, Alameda & more. New ADU construction starts ~$300K, 5–8 month build time. Licensed (#1034108) & insured.

California Construction Center Inc. specializes in garage conversions and ADU services in Concord and San Francisco County. They transform garages into guest suites, rental units, and home offices, ensuring code compliance and quality craftsmanship.

Armstrong Builders Inc. is a licensed ADU contractor in Greater San Diego specializing in accessory dwelling units, granny flats, and casitas. They offer full design-build services, custom floor plans, early price locks, and in-house teams.

Herbertson OG is a construction and solar company offering ADU building, remodeling, new construction, roofing, HVAC, and solar panel installation. They serve homeowners, investors, and designers across residential and commercial projects.

Pearl Remodeling is a Los Angeles ADU contractor specializing in garage conversions, granny flats & in-law suites. With 10+ years experience, they handle design, permits & construction under California's SB-1069 ADU laws.