
Andrea Construction Co
Andrea Construction Co. General contractor. 1160 Mooney Pl, Rahway, NJ 07065
Looking for the best custom ADU builders in Newark, New Jersey? Our directory features 6 vetted custom adu builders serving the Newark area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.

Andrea Construction Co. General contractor. 1160 Mooney Pl, Rahway, NJ 07065

Ultimate Contracting Team. Carpenter. Closed · Opens 8 a.m. Mon

Maurer Construction LLC. Home builder. 64 Hillside Ave, Berkeley Heights, NJ 07922

DIEGO'S PRO GENERAL CONTRACTOR LLC. Home builder. 721 N 7th St, Newark, NJ 07107

A&A Lemard General Construction, LLC. Construction company. Closed · Opens 8 AM Mon

Andar Builders LLC. Home builder. Closed · Opens 6:30 AM Mon
Newark is one of the top markets for accessory dwelling units in New Jersey. With growing demand for affordable housing, ADU construction in Newark offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of custom adu builders in Newark helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
ADU construction costs in Newark typically range from $150,000 to $350,000 depending on size, design, and finishes. Garage conversions are generally less expensive ($80,000–$150,000), while custom-built detached ADUs can cost more. Get free quotes from our listed custom adu builders to compare prices.
Yes, ADU construction in Newark requires building permits. New Jersey has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
ADU construction timelines in Newark typically range from 4–12 months, depending on the project type. Prefab ADUs can be installed in 2–4 months, while custom builds may take 8–12 months including design and permitting.