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In-Law SuiteNew York, NY

Best in-law suite builders in New York, New York

Looking for the best in-law suite builders in New York, New York? Our directory features 15 vetted in-law suite builders serving the New York area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.

15 in-law suite builders found
Average rating: 4.6

Top in-law suite builders in New York

DNB Renovations

New York, NY
5.0(11)
ADU ConstructionDesign-Build ADU

Specializing in ADU construction and related services in New York, NY.

Far Architecture

New York, NY
5.0(3)
ADU ConstructionDesign-Build ADU

Specializing in ADU construction and related services in New York, NY.

Superior ADU Pros

New York, NY
4.5(2)
ADU ConstructionGarage Conversion

Specializing in ADU construction and related services in New York, NY.

Verified

Second Key

New York, NY
4.4(3)
ADU ConstructionADU Planning

We help New York City homeowners turn underused space into beautifully designed ADUs (Accessory Dwelling Units), adding value, comfort, and opportunity to their properties.

4.0(6)
ADU ConstructionPrefab ADU

This modular ADU manufactured by Westchester Modular Homes is an aesthetically pleasing stand-alone structure ideal for housing extended family members or as an investment generating income as a rental property.

Why Choose In-Law Suite in New York?

New York is one of the top markets for accessory dwelling units in New York. With growing demand for affordable housing, ADU construction in New York offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of in-law suite builders in New York helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.

What to Look for in in-law suite builders

  • 1
    Licensed and insured in-law suite builders with experience in New York
  • 2
    Knowledge of New York zoning laws and ADU permit requirements
  • 3
    Portfolio of completed ADU projects in the New York area
  • 4
    Transparent pricing and detailed project timelines
  • 5
    Strong reviews and ratings from local homeowners
  • 6
    Warranty coverage on construction and materials

Frequently Asked Questions

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

ADU construction costs in New York 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 in-law suite builders to compare prices.

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

Yes, ADU construction in New York requires building permits. New York 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 New York?

ADU construction timelines in New York 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.