Step-by-step
Check PLUTO/MapPLUTO Data
The Primary Land Use Tax Lot Output (PLUTO) database from NYC Planning contains lot area in square feet for every tax lot. Access it through the NYC Open Data portal or through the ZoLa mapping tool.
Search the DOF Property Tax Records
The Department of Finance property tax records include lot dimensions (front x depth) and total lot area. Search by address on the DOF website and look for the "Property Dimensions" section.
Use ZoLa Mapping
The Zoning and Land Use Application (ZoLa) at zola.planning.nyc.gov displays lot boundaries on the map and provides lot area data. Click on any lot to see its area, dimensions, and zoning information.
Review the Tax Map
NYC tax maps show lot boundaries with dimensions. Digital tax maps are available through the DOF website. They show each lot within a block with its dimensions and lot number.
Order a Survey
For the most accurate lot dimensions, hire a licensed surveyor to perform a boundary survey. This is the definitive method and is typically required for new construction, subdivisions, and boundary disputes.
Look Up on RegWatch
RegWatch displays lot area and dimensions from PLUTO data as part of the property profile. Quickly access lot size alongside other property data without navigating multiple databases.
Overview
Knowing the lot size is essential for determining development potential, calculating FAR utilization, assessing property value, and planning construction. NYC provides lot area data through several public databases.
Understanding Lot Area in NYC
Lot area in NYC is measured in square feet and is the basis for zoning calculations. The Floor Area Ratio (FAR) multiplied by the lot area determines the maximum building floor area. Irregular lots (non-rectangular) require careful measurement and are common throughout the city.
PLUTO Data Limitations
While PLUTO provides lot area for planning purposes, it may not reflect the exact surveyed area. For legal and construction purposes, a licensed survey is the standard. PLUTO data is updated periodically and may not reflect recent lot subdivisions or mergers.
Frequently asked
Where can I find the lot size for an NYC property for free?
PLUTO data (via ZoLa or NYC Open Data), DOF property tax records, and digital tax maps all provide lot area information for free. These sources are sufficient for most research purposes.
What is the difference between lot area and building footprint?
Lot area is the total ground area of the tax lot. Building footprint is the area covered by the building. The ratio of building footprint to lot area is called lot coverage, which is regulated by zoning.
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