Attached ADU

Zee Design & Build is a Kirkland, WA ADU contractor serving King, Snohomish, Skagit & Island Counties. Offering full-service ADU construction—garage conversions, basement units, backyard cottages & more—since 2012.

Accessory Dwelling Units (ADUs) are independent living spaces on single-family lots. Donaldson Construction Company LLC offers full-service ADU construction in Central Florida, covering design, permitting, and build for detached units, garage conv... read more

Albera Construction builds custom ADUs in Los Angeles County, including detached units, garage conversions, and JADUs. Licensed contractor #1079656, serving South Bay, Beach Cities, and Greater LA. Full project management from design to permits.read more

Family-owned San Jose design-build contractor since 2009. We design and build ADUs and garage conversions with our own architect, engineer and designer.

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.

JC Construction & Remodeling is a Sacramento ADU builder with 26+ years of experience and 426+ completed projects. Services include detached ADUs, garage conversions, room additions, and remodels across Sacramento, Roseville, Folsom, and nearb... read more

Denver ADUs (granny flats, garage conversions, in-law units) offer affordable housing density solutions. DL Engineering Inc. provides structural engineering, design, and permitting services for Denver accessory dwelling unit projects.

JBL Construct LLC builds Accessory Dwelling Units (ADUs) in Northern Virginia, handling zoning, permits, design, and construction. Services cover basement conversions, garage conversions, and detached cottages. Costs range from $275–$400+ per sq... read more

CP Contracting Inc is a Eugene-based ADU contractor offering full-service accessory dwelling unit construction. Services include site evaluation, design, permitting, construction, and interior finishing for detached ADUs, garage conversions, and i... read more

Dagan Design & Construction (DDC), founded in 2012 in Encinitas, CA, offers custom home design, luxury renovations, interior design, and general contracting across Southern California and nationwide.

Michael Matthews Studio is an architecture firm in Los Angeles specializing in custom homes, ADUs, SB9 units, high-end renovations, and modern design. We believe architecture is a catalyst of change for individuals, communities, and the planet.read more

Distinctive Homes is Central Florida's trusted ADU builder, specializing in attached ADUs, detached ADUs, garage conversions & in-law suites. Boost property value & rental income with custom accessory dwelling units built to your vision.read more

Hope Custom Building offers home additions and detached ADU construction, including casitas, guest houses, and in-law suites. Based in Utah, they guide clients through design, engineering, and construction to add space and property value.