Floor Area Definition Nyc

Floor surface area is defined in section ac 28 101 4 5 2 as follows.

Floor area definition nyc.

Sfha are defined as the area that will be inundated by the flood event having a 1 percent chance of being equaled or exceeded in any given year. Floor surface area is the gross square foot area of all horizontal floor and roof surfaces including roofs of bulkheads and superstructures of a building or structure at any level including cellar attic and roof. If an existing building on this property contained 15 000 square feet then 25 000 square feet would be able to be transferred. The floor area ratio is the deciding factor in finding out the maximum buildable floor area.

This is a simple calculation requiring you to deduct the amount of floor area your existing building contains from the maximum allowable floor area permitted in your district. It includes vent shafts elevator shafts flues pipe shafts vertical ducts stairwells light wells basement space mechanical electrical rooms and interior parking. Welcome to new york city s zoning land use map. The 1 percent annual chance flood is also referred to as the base flood or 100 year flood.

Floor area ratio is the total floor area on a zoning lot divided by the lot area of that zoning lot. As an example on a 10 000 square foot property in a district allowing 4 0 far the maximum floor area permitted would be 40 000 square feet. The floor area ratios are set forth by nyc planning in the zoning resolution zoning code. The floor area of a building is the sum of the gross area of each floor of the building excluding mechanical space cellar space floor space in open balconies elevators or stair bulkheads and in most zoning districts floor space used for accessory parking that is located less than 23 feet above curb level.

Zola provides a simple way to research zoning regulations. Where cellar space extends below the cellar to create multiple cellar levels sub cellars use of the combined cellar and sub cellar floor spaces for non dwelling purposes may be considered accessory. Far is the reason why buildings with the same size lot but in different zoning districts can be drastically different in size. Find the zoning for your property discover new proposals for your neighborhood and learn where city planning initiatives are happening throughout the city.

If two or more buildings are located on the same zoning lot the floor area ratio is the sum of their floor areas divided by the lot area. Sfhas are labeled as zone a zone ao zone ah zones a1 a30 zone ae zone a99 zone ar zone ar ae zone ar.