103 Best ADU Builders in New York, New York

Verified ADU contractors and builders in New York, NY

Showing 130 of 103 listings — Page 1 of 4

1daywall - Temporary Wall Company

Specializing in accessory dwelling unit construction for New York homeowners, this contractor delivers rapid installation of temporary and modular living spaces to maximize your property's potential. From design through completion, they provide efficient ADU building solutions tailored to the unique needs and codes of the New York area.

+1 212-470-4868
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70 Vestry - Waterfront Condos in Tribeca

Transform your Tribeca garage into functional living space with expert conversion services tailored to Manhattan's unique waterfront properties. Our specialized team handles the technical challenges of converting garages into bedrooms, home offices, or additional living areas while maintaining your building's integrity and compliance standards.

+1 212-775-0070
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767 third ave

Transform your underutilized garage into functional living space with expert conversion services in New York. From design through completion, we specialize in garage-to-living-space renovations that maximize your home's potential and value.

+1 212-755-5151
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80 Pine

Transform your underutilized garage into functional living space with expert conversion services in New York. From design through completion, we specialize in converting garages into bedrooms, home offices, and recreation areas tailored to your family's needs.

+1 212-785-1110
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A to Z Build and Rennovate

Transform your New York property with expert accessory dwelling unit construction, creating additional living spaces that increase your home's value and versatility. Our specialized team handles every aspect of ADU building, from design through completion, ensuring seamless integration with your existing home.

+1 332-242-8593
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A to Z Renovations NYC

Transform your underutilized garage into functional living space with expert garage-to-living-space conversions throughout New York City. Our specialized team handles everything from structural planning to finishing touches, ensuring your new room seamlessly integrates with your home.

+1 212-652-2204
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A&D Construction services inc.

Specializing in accessory dwelling unit construction throughout New York, we transform properties with expertly built ADUs that maximize space and value for homeowners seeking rental income or multi-generational living solutions.

+1 929-320-8942
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Adler Windows

Specializing in accessory dwelling unit construction throughout New York, we transform properties by building high-quality ADUs that maximize your space and investment potential. Our expert team handles every phase from design and permitting to final completion, ensuring your new living space meets all local codes and your family's needs.

+1 212-695-9768
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Agalliu Contracting

Specializing in accessory dwelling unit construction throughout New York, this contracting team builds high-quality ADUs that maximize your property's potential and create valuable living space. Whether you're planning a backyard cottage, carriage house, or in-law suite, they deliver expert craftsmanship from design through completion.

+1 347-661-0969
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ALED Technologies

Specializing in accessory dwelling unit construction throughout New York, this builder transforms properties by creating additional living spaces that maximize your home's potential and value. From initial design through final completion, they deliver custom ADUs tailored to your property's unique layout and local requirements.

+1 917-863-8286
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All Renovation Construction LLC

Specializing in accessory dwelling unit construction throughout New York, we transform properties into multi-unit homes with expert planning and quality craftsmanship. Whether you're looking to add rental income or housing for family members, our team handles every phase of ADU development from design through completion.

+1 212-625-2714
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Ally Construction Contractors

Transform your garage into functional living space with expert conversion services throughout New York, NY. From design to completion, we specialize in converting garages into bedrooms, offices, and recreational areas that maximize your home's potential.

+1 917-714-3200
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Apartment Renovation NYC

Specializing in accessory dwelling unit construction throughout New York, we transform properties into additional living spaces that maximize your home's potential and investment value. Our expert team handles every phase of ADU development, from initial design through final construction, ensuring seamless integration with your existing home.

+1 646-693-2242
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ArkCo

Specializing in accessory dwelling unit construction throughout New York, we transform your property with expert ADU builds designed to maximize space and add value to your home. From initial design through final inspection, our experienced team handles every aspect of creating a functional, code-compliant living space on your property.

+1 212-292-8226
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Big Apple Holdings Group

Specializing in accessory dwelling unit construction throughout New York, we transform your property into multi-unit living spaces with expert design and seamless execution. Our experienced team handles every phase of ADU development, from initial planning through final inspection, to maximize your home's potential and rental income.

+1 646-989-0041
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Brener Construction, Inc. @ Apartment Renovation NYC

Specializing in accessory dwelling unit construction throughout New York City, this contractor transforms residential properties into multi-unit homes with expert planning and quality craftsmanship. Whether adding an ADU to your existing property or converting available space, they deliver compliant, comfortable living solutions tailored to NYC's unique regulations and space constraints.

+1 646-455-3321
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Build In NYC

Specializing in Accessory Dwelling Unit construction throughout New York, we transform properties into multi-unit homes with expert planning and quality craftsmanship. Whether you're looking to add rental income or create space for extended family, our team handles every aspect of ADU development from design through final inspection.

+1 212-433-0077
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Builderdome Construction

Specializing in accessory dwelling unit construction throughout New York, we transform properties with expertly built ADUs that maximize space and increase home value. Our experienced team handles every phase of ADU development, from design consultation to final inspection.

+1 646-801-4849
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CARPENTERS WORKSHOP , LLC

We specialize in transforming underutilized garage spaces into functional living areas, bedrooms, and recreation rooms for New York homeowners. Our skilled team handles every aspect of garage-to-living-space conversions, from structural modifications and insulation to finishing touches that seamlessly integrate your new space with your home.

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Closet Factory

Transform your New York home with a specialized ADU builder that creates accessory dwelling units to maximize your property's potential and rental income. Our expert team handles every aspect of ADU construction, from design and permitting to final completion, ensuring your additional living space meets local codes and exceeds your expectations.

+1 363-333-8567
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Cristian NYC Handyman

Specializing in accessory dwelling unit construction throughout New York, this experienced builder transforms properties into multi-unit homes with expert craftsmanship and local knowledge. Whether you're looking to add rental income or create space for extended family, they deliver quality ADU builds tailored to NYC's unique regulations and site conditions.

+1 845-901-8463
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D2 Design and Works

Specializing in accessory dwelling unit construction throughout New York, this ADU builder transforms properties into multi-unit homes with expert design and craftsmanship. Whether you're looking to add rental income, house extended family, or maximize your property's potential, they deliver custom ADU solutions tailored to your space and needs.

+1 212-873-7272
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DGT Attic-Solution & Insulation's & Roofing Services, NY

Specializing in attic conversions, insulation upgrades, and roofing services throughout New York, this contractor transforms underutilized spaces into functional living areas while improving your home's energy efficiency and protection. With expertise in accessory dwelling unit construction, they deliver quality craftsmanship tailored to maximize your property's potential.

+1 646-516-3479
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Dualcore Construction Management

Specializing in accessory dwelling unit construction throughout New York, this experienced builder transforms residential properties into multi-unit homes that maximize space and property value. From initial design through final inspection, they deliver ADU solutions tailored to local codes and your family's unique housing needs.

+1 917-740-2298
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Dvg industries Inc

Specializing in accessory dwelling unit construction throughout New York, we transform your property with expert ADU builds designed to maximize your home's potential. From initial design consultation to final inspection, our experienced team delivers quality additions that add value and flexibility to your property.

+1 917-881-1060
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Dynamic GC Corp

Specializing in accessory dwelling unit construction throughout New York, we transform residential properties with expertly built ADUs that maximize your home's potential and rental income. Our experienced team handles every phase of ADU development, from initial planning through final permitting and construction in the New York area.

+1 718-786-1776
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Emco Electric Services

Specializing in accessory dwelling unit construction throughout New York, we transform your property into additional living space with expert design and craftsmanship. From initial planning through final inspection, our team handles every aspect of bringing your ADU vision to life.

+1 212-420-9766
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Falcon Pacific Construction

Specializing in accessory dwelling unit construction throughout New York, we build additional living spaces that maximize your property's potential and provide flexible housing solutions. Whether you're looking to create rental income, accommodate family, or add guest quarters, our expert team handles every phase of ADU development from design through completion.

+1 212-508-7373
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Flo Restoration Inc

Specializing in accessory dwelling unit construction throughout New York, this contractor transforms properties by building high-quality ADUs that maximize space and property value. From initial design through completion, they deliver expert craftsmanship for homeowners seeking to add rental income or multi-generational living options.

+1 917-900-2851
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Fogarty Finger

Transform your underutilized garage into functional living space with expert conversion services throughout New York. Our skilled team specializes in garage-to-living-space renovations, handling everything from structural modifications to finishing touches.

+1 212-966-7450
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Frequently Asked Questions — ADU Builders in New York

How much does it cost to hire an ADU builder in New York?

ADU construction costs in New York, New York vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in New York to get accurate quotes for your specific project.

How long does it take to build an ADU in New York?

In New York, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on New York local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in New York?

Yes, a building permit is required for ADU construction in New York, New York. Your ADU builder will typically handle the permit application as part of their service. New York has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.

What types of ADUs can be built in New York?

Common ADU types in New York include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local New York ADU builder can advise on what's allowed on your specific parcel.