34 Best ADU Builders in Brooklyn, New York

Verified ADU contractors and builders in Brooklyn, NY

Showing 130 of 34 listings — Page 1 of 2

Aad Construction

Specializing in ADU construction throughout Brooklyn, we transform properties with custom-built accessory dwelling units designed to maximize your home's potential and rental income. Our expert team handles every aspect of the building process, from permitting and design to completion, ensuring your ADU meets all local codes and your vision.

+1 718-439-1400
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American Royal Renovations

Transform your underutilized garage into functional living space with expert garage-to-living-space conversions tailored to Brooklyn homes. Our experienced team handles everything from structural modifications to permits and finishing touches, maximizing your property's potential.

+1 718-619-1892
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Art-Tech Construction Corp

Specializing in accessory dwelling unit construction throughout Brooklyn, we transform underutilized residential space into functional, code-compliant living quarters that maximize your property's potential. Our expert team handles every phase of ADU development, from design and permitting to final build-out.

+1 212-960-3895
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Bee Dream House Renovation Inc

Transform your Brooklyn property with expert accessory dwelling unit construction, creating valuable rental income or multigenerational living space. Our specialized ADU builders combine local expertise with quality craftsmanship to maximize your home's potential.

+1 718-603-1860
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Best Budget Construction | Home Painting Contractor | Masonry | Waterproofing | Roofing | Stucco

Transform your Brooklyn garage into valuable living space with expert conversion services that maximize your home's potential. Our experienced team specializes in complete garage-to-living-space renovations, handling everything from structural modifications and waterproofing to finishing touches like painting and roofing.

+1 917-674-9488
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Block Renovation

Transform your Brooklyn property with expert accessory dwelling unit construction, from planning through completion. We specialize in maximizing your home's potential with custom-built ADUs designed to meet local regulations and your family's needs.

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Blue City Construction

Specializing in accessory dwelling unit construction throughout Brooklyn, this contractor transforms properties by building legal ADUs that maximize your home's value and rental potential. From initial design consultation through final inspection, they handle every aspect of creating an independent living space on your residential property.

+1 718-313-6766
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Commercial Building & Restoration

Specializing in accessory dwelling unit construction throughout Brooklyn, we transform properties into multi-unit homes with expert design and quality craftsmanship. Whether you're looking to add rental income or guest space, our team handles every aspect of ADU building from permits to completion.

+1 718-369-1001
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DCON Renovations & Remodeling

Specializing in garage-to-living-space conversions throughout Brooklyn, this contractor transforms underutilized garages into functional rooms tailored to your home's needs. With expert attention to building codes, insulation, and design, they deliver high-quality remodeling projects that maximize your property's value and livable space.

+1 917-451-3428
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Deluxe Construction

Specializing in accessory dwelling unit construction throughout Brooklyn, we transform properties by building high-quality ADUs that maximize your space and investment potential. Our expert team handles every phase of ADU development, from design and permitting to final completion.

+1 347-687-7006
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Dowbuilt

Specializing in accessory dwelling unit construction throughout Brooklyn, we help homeowners maximize their property potential by building high-quality ADUs that add living space and increase home value. Our experienced team manages every phase of ADU development, from design and permits to final construction.

+1 347-732-2621
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Five stars Handyman

Transform your Brooklyn garage into functional living space with expert conversion services tailored to your home's unique needs. From design through completion, we specialize in converting garages into bedrooms, home offices, studios, and more.

+1 917-300-1493
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Gallery Renovation NYC

Transform your Brooklyn garage into a functional living space with expert conversion services tailored to maximize your home's potential. From design through completion, we specialize in converting underutilized garage areas into bedrooms, home offices, studios, and more that add real value to your property.

+1 917-660-5667
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Gaudioso Contracting

Transform your Brooklyn garage into functional living space with expert conversion services tailored to your home's unique layout and local building codes. From design to completion, we specialize in converting underutilized garages into bedrooms, offices, and recreational areas that maximize your property's potential.

+1 212-867-8389
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Green Conversions Inc.

We specialize in transforming garages into functional living spaces, whether you're looking to create an extra bedroom, home office, or recreation area for your Brooklyn home. Our expert team handles every aspect of garage-to-living-space conversions, from permits and structural modifications to finishing touches that seamlessly integrate with your existing home.

+1 718-360-4699
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Haven

Based on the content, Haven likely focuses on ADU design and construction, offering consultations to help homeowners maximize their property's potential through ADU programs.

(917) 938-7864
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IG Renovation

Transform your Brooklyn garage into a functional living space with expert conversion services tailored to maximize your home's potential. From design to completion, we specialize in creating beautiful garage-to-living-space conversions that add value and comfort to your property.

+1 646-249-7776
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inc

Specializing in accessory dwelling unit construction throughout Brooklyn, this contractor transforms properties with expert ADU builds designed to maximize space and value. Whether you're adding a backyard cottage or converting existing structures, they deliver quality craftsmanship tailored to New York's unique building requirements.

+1 718-570-1592
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J.Costa Constrution

We specialize in transforming Brooklyn garages into functional living spaces, bedrooms, offices, and recreational areas tailored to your home's needs. Our expert team handles every aspect of garage-to-living-space conversions, from structural planning and permitting to finishing touches that seamlessly integrate with your existing home.

+1 646-996-4311
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LABLSTUDIO

Transform your Brooklyn garage into functional living space with expert conversion services that maximize your home's potential. From design through completion, we specialize in converting garages into bedrooms, home offices, studios, and more.

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M-Azad Construction

We specialize in transforming Brooklyn garages into functional living spaces, from home offices and studios to guest bedrooms and recreation rooms. Our expert team handles every phase of your garage conversion, ensuring quality craftsmanship and code compliance from start to finish.

+1 646-926-2098
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Mega Construction

Transform your Brooklyn garage into a functional living space with expert conversion services tailored to maximize your home's potential and value. Our specialized team handles every aspect of garage-to-living-space conversions, from structural modifications to final finishing touches.

+1 347-291-4487
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Model Garage Inc

Transform your Brooklyn garage into functional living space with expert conversion services that maximize your home's potential. We specialize in professional garage-to-living-space renovations, handling everything from structural modifications to code compliance to create the additional rooms your family needs.

+1 718-871-9200
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Nikki's Mobile Assembly & Maintenance Services

Transform your Brooklyn garage into a functional living space or workspace with expert conversion services tailored to your home's needs. From design through completion, we handle every aspect of turning underutilized garage space into valuable square footage your family can actually use.

+1 518-294-9594
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Ok Construction Company & brick pointing company

Specializing in ADU construction throughout Brooklyn, this contractor transforms underutilized properties into separate living units, helping homeowners maximize their real estate investment while adding valuable rental income or guest space. With expertise in both new builds and conversions, they handle all aspects of accessory dwelling unit development from design through completion.

+1 347-330-3111
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Parka Electric

Transform your underutilized Brooklyn garage into a functional living space with expert conversion services tailored to your home's unique needs. Our experienced team specializes in garage-to-living-space renovations, handling everything from electrical work to structural modifications to bring your vision to life.

+1 718-924-5237
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Preferred Builders

We specialize in designing and constructing accessory dwelling units (ADUs) throughout Brooklyn, transforming underutilized spaces on your property into functional, code-compliant living quarters. Our expert team handles every aspect of the ADU building process, from initial planning and permitting to final construction, ensuring your project meets local regulations and exceeds your expectations.

+1 718-408-8442
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S & R General Construction NYC Corp.

We specialize in transforming garages into functional living spaces, bedrooms, and recreational areas throughout Brooklyn and the surrounding NYC region. Our expert team handles all aspects of garage conversions, from structural modifications and permit acquisition to finishing and installation.

+1 718-450-7233
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S NYC Renovation

Transform your Brooklyn garage into functional living space with expert conversion services tailored to maximize your home's potential. From design through completion, we specialize in converting garages into bedrooms, home offices, studios, and more to meet your family's evolving needs.

+1 646-256-0089
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Scarano Architect, PLLC

Expert garage-to-living-space conversions serving Brooklyn homeowners looking to maximize their property's potential. From permits and architectural design through completion, we transform underutilized garages into functional bedrooms, home offices, and recreational spaces.

+1 718-222-0322
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Frequently Asked Questions — ADU Builders in Brooklyn

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

ADU construction costs in Brooklyn, 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 Brooklyn to get accurate quotes for your specific project.

How long does it take to build an ADU in Brooklyn?

In Brooklyn, 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 Brooklyn?

Yes, a building permit is required for ADU construction in Brooklyn, 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 Brooklyn?

Common ADU types in Brooklyn 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 Brooklyn ADU builder can advise on what's allowed on your specific parcel.