Attached ADU

A1 Building Contractors LLC offers general contracting, renovation, and ADU construction services. Specializing in detached ADUs, garage conversions, JADUs, and in-law suites, they manage permits, trades, and timelines for residential and commercial projects.

Distinctive Design & Remodeling is an experienced ADU contractor building detached, attached, basement, and garage ADUs. Services include design, permits, and post-construction support for guest houses, in-law suites, and rental units.

Condor Builders offers custom ADU design & construction in Sacramento & Northern California. Services include permitting, energy-efficient builds, garage conversions & two-story ADUs. Serving Roseville, Folsom, Granite Bay & more. Free estimates available.

Olympic View Building is an ADU contractor offering detached ADU construction, garage conversions, in-law suites, granny flats, and JADU services. They help homeowners add value and living space while navigating zoning laws and building codes.

Homeowners Design Center in Honolulu, Hawaii, offers ADU design, kitchen & bathroom remodeling, and interior finish products. Family-owned with 40+ years of experience, they serve residential and commercial clients with custom, quality-driven solutions.

ADUs are self-contained living spaces on existing properties. Legal in Massachusetts, local zoning rules apply. Boston Building Concepts is a Massachusetts ADU contractor offering full-service design, permitting, and construction of garage conversions, in-law suites, and detached ADUs.

Nu Wavz Homes is a California ADU contractor specializing in detached ADUs, garage conversions, JADUs, and in-law suites. They manage permitting, design, and construction, helping homeowners add living space or rental income.

ADUs (accessory dwelling units) are self-contained homes on existing properties. California's 2020 laws simplified ADU permits statewide. Alpha ADU Solutions, a San Francisco-based ADU builder with 100+ team members, specializes in granny flats, garage conversions & in-law suites.

EcoCraft LLC designs & builds custom ADUs in Portland, OR, including detached ADUs, garage conversions & in-law suites. Serving Beaverton, Tigard & Vancouver, WA. Projects range from $150K–$350K. Full permitting support included.

GrindStone Construction is a veteran-owned ADU contractor in Cary, NC, building backyard cottages, in-law suites & rental ADUs across the Raleigh-Durham Triangle with fixed-price contracts and full-service design-build support.

Don’t settle for a one-size-fits-all design. Whether you want something simple and efficient or stylish and custom, Laguna Construction Inc. works with your vision and your budget to create the perfect ADU for your property.

Core ADU is an accessory dwelling unit builder offering energy-efficient, accessible, low-maintenance detached ADUs. Featuring a prefabricated core module, flexible 460–750 sq ft plans, net-zero capability, zero-VOC materials, and full Omaha zoning compliance.

Concrete foundations for ADUs in Greenville County, SC offer durability, moisture resistance, and low maintenance. Virtue Concrete provides expert residential and commercial concrete services across Upstate South Carolina, including Anderson, Spartanburg, and Pickens counties.