ACCESSORY DWELLING UNIT
______________________________
Discover how SLK Buildings helps you unlock hidden space and income with expertly planned ADUs across New York City.

Unlock The Potential of Your NYC Property with ADU
Your trusted partner in planning, permitting, and building Accessory Dwelling Units (ADUs)—from basement conversions to backyard cottages.
SLK Buildings | NYC Filing Representative
The Ultimate Guide to Building an Accessory Dwelling Unit (ADU) in NYC
Looking to build an Accessory Dwelling Unit (ADU) in New York City? Whether you are a homeowner, or real estate investor, you are in the right place. At SLK Buildings, we guide New Yorkers through the complex process of designing, permitting, and legalizing ADU’s that comply with NYC regulations and unlock new income potential.
What is an Accessory Dwelling Unit (ADU)?
The Ultimate Guide to Building an ADU in NYC
Looking to build an Accessory Dwelling Unit (ADU) in New York City? Whether you’re a homeowner or real estate investor, SLK Buildings guides you through every step of designing, permitting, and legalizing ADUs that comply with NYC regulations—and create lasting value.
What Is an Accessory Dwelling Unit?
An ADU is a self-contained secondary housing unit located on the same lot as a primary residence. Common ADU types include basement apartments, garage conversions, detached backyard homes, and attic units. These spaces have their own entrance, kitchen, bathroom, and sleeping area, offering flexibility for rental income or multigenerational living.
Add Your Heading Text Here
Why Add an ADU to Your NYC Property?
Why Add an ADU to Your NYC Property?
- ✅ Generate rental income from unused space
- ✅ Increase your property’s market value
- ✅ Provide housing for extended family members
- ✅ Support NYC’s housing goals
- ✅ Access state and city financial incentives
Ready to Build Your ADU in NYC?
Let SLK Buildings guide you from zoning to final sign-off. No stress. Just clear steps and results.
📩 Get My ADU ProposalPopular ADU Types
Most Popular NYC ADU Types
- 🏠 Basement Conversions — Legalize a finished basement as a rentable unit
- 🏚️ Attic Conversions — Convert unused space into a functional upper-level dwelling
- 🏡 Detached Backyard Units — Build a stand-alone structure where zoning allows
Key Considerations
Key Considerations When Planning an ADU in NYC
- 🏘️ Zoning Compliance — Is your property eligible for an ADU?
- 📋 Permit Requirements — What must be filed with DOB or FDNY?
- 🛠️ Design Standards — Meet building codes and safety regulations
- 💸 Incentives — Tap into grants or low-interest financing options
RELATED RESOURCES
The “Plus One” ADU program typically refers to an initiative aimed at encouraging the construction or conversion of
Accessory Dwelling Units (ADUs) have become increasingly popular as a solution to housing shortages
ADU Housing refers to a secondary housing unit that shares the building lot of a larger, primary home. These
In the bustling metropolis of New York City, where housing affordability is a perennial challenge, Accessory Dwelling
Developing Accessory Dwelling Units in New York City presents homeowners with a promising opportunity to maximize their
The debate surrounding ADU in New York City extends beyond housing supply and affordability; it delves into the
As the real estate market in New York City continues to evolve, homeowners are exploring innovative ways to
In a bustling metropolis like New York City, the concept of multigenerational living is not just a cultural tradition but also
In the bustling metropolis of New York City, where space is at a premium, the design of ADU requires careful
As New York City grapples with a persistent housing shortage and soaring real estate costs, the development of ADU has
In New York City, where space is at a premium, homeowners are increasingly turning to basement and attic conversions
As the demand for housing continues to grow in New York City, homeowners are increasingly looking for ways to
ADU stands for Accessory Dwelling Unit. An ADU is a secondary housing unit on a single-family residential lot that
In New York City, Accessory Dwelling Units (ADUs) have emerged as a housing solution aimed at increasing housing
New York City, renowned for its dense urban landscape and towering skyscrapers, is also home to a more nuanced real
NYC Accessory Dwelling Unit (ADU) FAQs
Is my NYC property eligible for an ADU?
Start with a Zoning Regulation and Building Code analysis. We will help you determine if your lot qualifies and what improvements are needed.
What permits are required?
Typically, you will need DOB work permits, and a Certificate of Occupancy .
How long does the process take?
From design to Department of Buildings sign off, timelines vary based on complexity, but usually it can be done between 3 to 6 months. We help to expedite filings, inspections, and reduce delays.
For more information please visit HPD Plus One ADU
Download the Free NYC ADU Starter Guide
Get everything you need to plan your first ADU ~ from the checklists and diagrams to cost saving incentives and permit requirements.