Building Departments in Suffolk County, New York

There are 21 Building Departments in Suffolk County, New York, serving a population of 1,497,595 people in an area of 912 square miles. There is 1 Building Department per 71,314 people, and 1 Building Department per 43 square miles.

In New York, Suffolk County is ranked 50th of 62 counties in Building Departments per capita, and 10th of 62 counties in Building Departments per square mile.

List of Suffolk County Building Departments

Find Suffolk County, New York building departments, planning, permits, zoning, and inspections.

Branch Village Building Department 40 Route 111 Smithtown, NY

Brookhaven Zoning 1 Independence Hill Farmingville, NY

East Hampton Planning Department 300 Pantigo Place East Hampton, NY

East Hampton Zoning 300 Pantigo Place East Hampton, NY

Huntington Zoning 100 Main Street Huntington, NY

Islip Planning Department 655 Main Street Islip, NY

Lindenhurst Building Department 430 South Wellwood Avenue Lindenhurst, NY

Lindenhurst Zoning 430 South Wellwood Avenue Lindenhurst, NY

New York State Permits 50 Circle Road Stony Brook, NY

North Babylon Town Building Department 200 Sunrise Highway Lindenhurst, NY

Patchogue Building Department 14 Baker Street Patchogue, NY

Port Jefferson Building Department 88 North Country Road Port Jefferson, NY

Sag Harbor Building Department 55 Main Street Sag Harbor, NY

Shelter Island Town Zoning 46 North Ferry Road Shelter Island, NY

Smithtown Building Department 99 West Main Street Smithtown, NY

Smithtown Zoning 99 West Main Street Smithtown, NY

Southampton Zoning 116 Hampton Road Southampton, NY

Southold building department 54375 Middle Road Southold, NY

Suffolk County Planning Department 100 Veterans Memorial Highway Hauppauge, NY

Westhampton Beach Building Department 165 Mill Road Westhampton Beach, NY

Westhampton Beach Zoning 165 Mill Rd Westhampton Beach, NY

About the Suffolk County Building Department

Building Departments in Suffolk County, NY are responsible for ensuring safe construction of buildings located in their jurisdictions. Building Departments create building codes and standards for building construction to ensure building safety. The Suffolk County DOB is involved in all aspects of construction, including zoning laws, design requirements, building materials, trade and professional license regulation.

You may contact the Building Department for questions about:
  • Suffolk County, New York building inspection records
  • Contractor license searches
  • Suffolk County building codes
  • Building permit violations, appeals, and fines
  • Construction permits and building ordinances
  • Suffolk County, NY zoning laws and requirements

Suffolk County Building Structure & Housing Statistics

Find Suffolk County Residential Housing Units, Occupied Residential Buildings Construction Year, Occupied Residential Buildings Room Characteristics, Occupied Residential Buildings Bedroom Characteristics, and Occupied Residential Building Facility Characteristics. Data Source: U.S. Census Bureau; American Community Survey, 2018 ACS 5-Year Estimates.

Suffolk County Residential Housing Units
 Suffolk CountyNew York
Total Housing Units575,1628,287,087
Occupied Housing Units487,981 (84.8%)7,316,537 (88.3%)
Suffolk County Occupied Residential Buildings
 Suffolk CountyNew York
Single-Family Detached Homes387,863 (79.5%)3,056,240 (41.8%)
Single-Family Attached Homes24,487 (5.0%)385,262 (5.3%)
2 Apartments18,023 (3.7%)736,030 (10.1%)
3 or 4 Apartments10,504 (2.2%)500,272 (6.8%)
5 to 9 Apartments13,368 (2.7%)381,461 (5.2%)
10 or More Apartments29,248 (6.0%)2,104,409 (28.8%)
Mobile Home or Other Type of Housing4,488 (0.9%)152,863 (2.1%)
Suffolk County Occupied Residential Buildings Construction Year
 Suffolk CountyNew York
2014 or Later2,026 (0.4%)45,618 (0.6%)
2010 to 20133,594 (0.7%)106,896 (1.5%)
2000 to 200936,797 (7.5%)452,893 (6.2%)
1980 to 199989,104 (18.3%)997,799 (13.6%)
1960 to 1979195,298 (40.0%)1,671,698 (22.8%)
1940 to 1959118,283 (118,283.0%)1,733,497 (1,733,497.0%)
1939 or Earlier42,879 (8.8%)2,308,136 (31.5%)
Suffolk County Occupied Residential Buildings Room Characteristics
 Suffolk CountyNew York
1 Room5,725 (1.2%)274,733 (3.8%)
2 or 3 Rooms266,348 (54.6%)4,279,831 (58.5%)
4 or 5 Rooms118,227 (24.2%)2,540,356 (34.7%)
6 or 7 Rooms172,159 (35.3%)1,857,583 (25.4%)
8 or More Rooms155,218 (31.8%)1,297,242 (17.7%)
Suffolk County Occupied Residential Buildings Bedroom Characteristics
 Suffolk CountyNew York
No Bedroom6,334 (1.3%)319,813 (4.4%)
1 Bedroom41,403 (8.5%)1,372,490 (18.8%)
2 or 3 Bedrooms266,348 (54.6%)4,279,831 (58.5%)
4 or More Bedrooms173,896 (35.6%)1,344,403 (18.4%)
Suffolk County Occupied Residential Building Facility Characteristics
 Suffolk CountyNew York
With Complete Plumbing Facilities486,324 (99.7%)7,287,201 (99.6%)
With Complete Kitchen Facilities484,830 (99.4%)7,259,644 (99.2%)