ADU Contractors

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.

EcoMod is a Denver-based ADU builder offering sustainable, affordable housing using repurposed shipping containers. Models range from 320–800 sq ft, starting at $64,000. Homes are 9x stronger, last 200+ years, and cut construction costs by 30%.

Northwest ADU is a full-service ADU contractor in Western Washington specializing in detached ADUs, garage conversions, and basement conversions. Serving Pierce, King, and Snohomish Counties, projects range from $180K–$350K+, taking 6–10 months.

URBN BLDRS is a specialized ADU contractor helping homeowners plan and build accessory dwelling units. They offer expert guidance, dedicated project teams, and streamlined processes from consultation to construction completion.

Peak Construction and Design LLC builds custom ADUs in Springfield, OR, including detached cottages, attached units, in-law suites, and rental spaces. Expert ADU contractor offering full design-to-build services tailored to your property.

Leon's Construction Inc. offers ADU construction services in Escondido, Encinitas, and San Marcos, CA. They build backyard cottages, basement apartments, tiny homes, and more using durable, energy-efficient materials.

Das Chapin Design specializes in ADU design, garage & basement conversions, and general contracting. Offering permit support, construction consultation, and full build services via ADU Design & Build, LLC, they create efficient, livable spaces in Portland, Oregon.

Huskies Construction in Renton specializes in home additions, ADUs, and DADUs. Services include garage conversions, granny flats, in-law suites, backyard cottages, and room additions, helping homeowners expand living space or generate rental income.

Straight Line Design and Remodeling LLC offers ADU design and build services in Portland, Oregon. Serving Beaverton, Tigard, Lake Oswego & Hillsboro since 2010, they build backyard cottages for rental income, multigenerational living & added property value.

Artisan Builders Construction builds ADUs in San Luis Obispo County, CA. Services include detached ADUs, attached units, garage conversions & JADUs. They manage planning, permitting, construction & inspections with transparent pricing.

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.

QUH Studio, based in Tehachapi, CA, offers ADU design, architectural drafting, and construction documents for California homeowners. Services include floor plans, 3D renderings, permit support, and interior architecture for residential and commercial projects.

Goshen Tiny Homes is a Florida ADU builder specializing in site-built accessory dwelling units. Pricing ranges from $75K–$255K. They manage design, permits & construction with 10–12 month timelines and offer financing guidance.

Olive City Construction, LLC is a Northern California ADU contractor serving Chico. They offer tiered packages for accessory dwelling units, financing options including 0% APR, and handle permitting, garage conversions, granny flats, and detached ADU builds.

Bay Builders & Remodeling specializes in custom ADU construction across Santa Clara, San Mateo, and East Bay. Services include attached, detached, garage conversions, and JADUs, helping homeowners add rental income, family housing, or workspace.