Acorn Tiny Homes Lancaster County
Philadelphia, PA
5.05.0(0 reviews)
ADU ConstructionCustom Home Building
Acorn Tiny Homes Lancaster County. Home builder. Closed · Opens 9 AM Mon
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Custom ADUPhiladelphia, PA
Best custom ADU builders in Philadelphia, Pennsylvania
Looking for the best custom ADU builders in Philadelphia, Pennsylvania? Our directory features 8 vetted custom adu builders serving the Philadelphia area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.
8 custom adu builders found
Average rating: 4.8
Top custom ADU builders in Philadelphia
Common Structure Building and Renovating Co.
Philadelphia, PA
5.05.0(0 reviews)
ADU ConstructionCustom Home BuildingGeneral Contracting
Common Structure Building and Renovating Co.. Construction company. 4103 Unruh Ave, Philadelphia, PA 19135, United States
KD Builders LLC
Philadelphia, PA
5.05.0(4 reviews)
ADU ConstructionCustom ADU
Specializing in ADU construction and related services in Philadelphia, PA.
A & J Carpentry Contractors Co
Philadelphia, PA
5.05.0(0 reviews)
ADU ConstructionCustom Home Building
A & J Carpentry Contractors Co. Home builder. 1532 S 53rd St, Philadelphia, PA 19143, United States
Nu-View Construction - GENERAL CONTRACTOR
Philadelphia, PA
4.84.8(0 reviews)
ADU ConstructionCustom Home BuildingGeneral Contracting
Nu-View Construction - GENERAL CONTRACTOR. General contractor. 1401 Spruce St #916, Philadelphia, PA 19102, United States
DO CONSTRUCTION
Philadelphia, PA
4.84.8(0 reviews)
ADU ConstructionCustom Home Building
DO CONSTRUCTION. Construction company. N American St, Philadelphia, PA 19134, United States
EcoCraft Homes
Philadelphia, PA
4.24.2(0 reviews)
ADU ConstructionCustom Home Building
EcoCraft Homes. Home builder. 46 Sheridan Ave, Pittsburgh, PA 15202
AM Construction Inc.
Philadelphia, PA
No reviews yet
ADU ConstructionCustom Home Building
AM Construction Inc.. Home builder. 2009 Spruce St, Philadelphia, PA 19103, United States
Why Choose Custom ADU in Philadelphia?
Philadelphia is one of the top markets for accessory dwelling units in Pennsylvania. With growing demand for affordable housing, ADU construction in Philadelphia offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of custom adu builders in Philadelphia helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
What to Look for in custom ADU builders
- 1Licensed and insured custom adu builders with experience in Philadelphia
- 2Knowledge of Philadelphia zoning laws and ADU permit requirements
- 3Portfolio of completed ADU projects in the Philadelphia area
- 4Transparent pricing and detailed project timelines
- 5Strong reviews and ratings from local homeowners
- 6Warranty coverage on construction and materials
Frequently Asked Questions
How much does it cost to build an ADU in Philadelphia?
ADU construction costs in Philadelphia 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.
Do I need a permit to build an ADU in Philadelphia, Pennsylvania?
Yes, ADU construction in Philadelphia requires building permits. Pennsylvania has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
How long does it take to build an ADU in Philadelphia?
ADU construction timelines in Philadelphia 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.