Detached ADU

D.A.R.T Construction builds ADUs across South Carolina, including detached backyard cottages, garage apartments, in-law suites & granny flats. They manage permits, inspections & utility coordination with a structured, phased build process.

Oak Coast Construction is a California-based contractor specializing in ADU development, custom homes, design-build, remodeling, and commercial construction. They also offer printing services including blueprints and signage via Oak Coast Printing.

WME Homes is a Salt Lake City ADU contractor building detached units, garage conversions & in-law suites. They handle zoning, permits & construction for rental income, family housing or guest spaces.

Willner Enterprises is a licensed Pennsylvania home improvement contractor (HIC# PA012219) serving the Pittsburgh area. They specialize in residential construction, remodeling, garage conversions, and ADU projects, with an active presence on Houzz and Yelp.

San Gorgonio Builders is a licensed General B contractor near Banning, CA, with 40+ years of experience. Specializing in ADU construction, garage conversions, custom homes, and remodeling across Riverside, San Bernardino, Orange, and Los Angeles Counties.

Environs is a woman-owned design-build firm in Portland, Oregon, specializing in ADUs, home additions, remodels, and new construction. Licensed Oregon contractor (CCB 188377) with availability for projects breaking ground summer 2026.

HSP ADU Builders is a California ADU contractor specializing in detached ADUs, garage conversions, JADUs, and in-law suites. They guide homeowners through design, permitting, and construction of accessory dwelling units.

Sub Zero Construction, based in Moorhead, MN, offers residential remodeling services across Minnesota and North Dakota. With 30+ years of experience, they specialize in kitchens, bathrooms, flooring, tile, drywall, and custom carpentry. Licensed, insured, and free estimates available.

ADUs are secondary residential units on the same lot as a primary home. Ability Drafting Services assists homeowners with ADU design and permitting, covering detached, attached, and garage conversion types, preparing full drawing sets for approval.

Home Remodel Reno offers full-service ADU construction in Reno, including garage conversions, basement ADUs, and detached backyard cottages. Services cover design, permits, utility connections, and project management for rental or family use.

Sten Engineering is a Los Angeles firm specializing in ADU design, structural engineering, and garage conversions. Led by licensed P.E. Evgeny Nagovitsyn, they handle permits, structural plans, and ADU builds across Southern California.

An Accessory Dwelling Unit (ADU) is an independent living space on a single-family property. Washington State's HB 1337 boosted ADU construction, easing zoning rules, removing owner-occupancy requirements, and capping impact fees at 50%.

At DeTerraScape, we are passionate about creating beautiful and functional outdoor and indoor living space. Our team and partners have the expertise and knowledge to bring your home visions to life.

Founded in 1986 by Mike Morain, KGM Construction is an A+ BBB-rated contractor offering residential remodeling, new home construction, ADUs, granny flats, garage conversions, commercial builds, and storm damage restoration with 35+ years of experience.

Trusted Boston ADU builders specializing in attached, detached, and two-story accessory dwelling units. Stick-built construction ensures code compliance and lasting value. Services include design, permitting, and full project management for multigenerational living or rental income.