Nassau County Building Departments (New York)

Nassau County Building Departments develop and enforce building codes to ensure the construction of safe buildings in Nassau County, New York. The Building Department maintains building and zoning records, including design plans for construction and renovation projects, records on the current structures on any parcel, maps showing property lines, and Nassau County building permits issued by the department. They also keep records on a property's compliance with Nassau County building codes, including building and zoning violations, as well as records of inspection reports. Many Building Departments provide online access to building records.

Freeport Building Department Freeport NY 46 North Ocean Avenue 11520 516-378-0700

Hempstead Building Department Hempstead NY 1 Washington Street 11550 516-538-8500

Hempstead Planning Department Roosevelt NY 383 Nassau Road 11575 516-378-2111

Hempstead Planning Department Hempstead NY 200 North Franklin Street, Unit D 11550 516-538-7100

Lawrence Building Department Lawrence NY 196 Central Avenue 11559 516-239-3987

Manhasset Planning Department Manhasset NY 210 Plandome Road 11030 516-869-7752

Nassau County Planning Department Mineola NY 1 West Street, # 200 11501 516-571-4203

North Hempstead Building Department Manhasset NY 210 Plandome Road 11030 516-869-7680

North Hempstead Zoning Manhasset NY 210 Plandome Road 11030 516-869-7659

Oyster Bay Planning Department Oyster Bay NY 74 Audrey Avenue 11771 516-624-6200

Oyster Bay Zoning Oyster Bay NY 74 Audrey Avenue 11771 516-624-6232

Valley Stream Zoning Valley Stream NY 123 South Central Avenue 11580 516-825-8201

Nassau County Building Inspectors ensure that building construction is in compliance with building and zoning codes in Nassau County, NY. They maintain documents on permits issued by the Nassau County Building Department, including construction, relocation, demolition, and occupancy permits. Building Inspectors also keep approved and rejected building plans and blueprints, records on a property's compliance with Nassau County building codes, and records on building and zoning violations and inspection reports. Many Building Inspectors make these building and zoning records available to the public online.

Brookville Building Inspector Glen Head NY 18 Horse Hill Road 11545 516-626-0973

Town of Hempstead Building Inspector Hempstead NY 99 Nichols Court 11550 516-489-3400


Nassau County Treasurers and Tax Collectors are responsible for the collection of property tax revenue in NY. The Office of the Treasurer and Tax Collector maintains and updates records on every parcel in the district, as well as maintaining certain building and zoning records. These records include building valuations, zoning boundaries, and building construction. Treasurers and Tax Collectors also keep documents on Nassau County property taxes, including property tax assessments, defaults on property taxes, and tax liens. The office may also maintain information on property auctions and a property's prior liens or foreclosures. Many Treasurers and Tax Collectors provide online databases to access their Nassau County building records, including documents on building and zoning.

Brookville Village Treasurer Glen Head NY 18 Horse Hill Road 11545 516-626-1792

Freeport Treasurer Freeport NY 46 North Ocean Avenue 11520 516-377-2261

Hempstead Village Treasurer Hempstead NY 99 Nichols Court 11550 516-489-3400

Nassau County Treasurer's Office Mineola NY 1 West Street 11501 516-571-2090


Nassau County Assessors evaluate the value of properties and parcels in order to determine property taxes. The Assessor's Office maintains current data on every property in the Nassau County, NY including inventories of parcels and structures, zoning boundaries, and the value of all the property in the jurisdiction. Assessors may also keep Nassau County building and zoning records, such as reports from on-site inspections, maps of property lines and zones, and value assessments for building improvements. Many Assessor's Offices provide online access to their records, including documents on building and zoning.

Freeport Assessor Freeport NY 46 North Ocean Avenue 11520 516-377-2256

Nassau County Assessor's Office Mineola NY 240 Old Country Road 11501 516-571-1500


Nassau County Code Enforcement Departments ensure compliance with building and zoning codes for a county or local government. Code Enforcement Departments in New York keep records on building code violations, zoning regulations, and zoning violations. They also maintain records on Nassau County building inspections, complaints filed against properties or businesses, violations issued by the department, and other local rules and regulations. The records maintained by the Code Enforcement Department are often available online.

Valley Stream Code Enforcement Valley Stream NY 123 South Central Avenue 11580 516-825-8242