C5-1 Zoning NYC

C5-1 Zoning NYC

(Last Updated On: February 1, 2019)

C5-1 Zoning is a Restricted Commercial Zoning district in NYC. In C5-1 you can build a variety of commercial building uses, community facilities, and residential buildings.

 

C5-1 Zoning

The C5-1 Zoning District is a sub district of C5 Zoning in NYC. C5 is a central zoning district with generally large buildings having retail, offices, hotels, and residential uses. The C5-1 zoning district is a Commercial Zoning District with residential and commercial uses. These are mapped on 58th st and the Upper East Side of Manhattan.

C5-1 Zoning Districts:

C5-1 Residential Equivalent:

  • R10

 

C5-1 Zoning Regulations

The New York City Zoning Resolution is complicated and quite in depth. In this article we will review some basic Zoning Codes with regards to commercial zoning district C5-1. This analysis does not assume to cover every possible issue, but provide a general overview of the zoning codes.

 

C5-1 Residential Equivalent

Most Commercial Zoning districts have a Residential Equivalent. This means you can develop a residential building within the commercial zoning district. You follow the residential equivalent zoning requirements in the case of a residential development. The residential equivalent for C5-1 is R10 Zoning.

 

Mixed Use Building

You can develop a mixed use building with commercial and residential zoning. In this case you would apply the requirements of C5-1 and R10 in designing the building.

 

C5-1 Zoning Specifications

C5-1 Commercial Floor Area Ratio (FAR):

Floor Area Ratio determines the floor area that can be built on the property.

FAR =  4

The FAR is for Commercial Floor Area. Residential FAR usually differs from Commercial.

C5-1 Community Facility Floor Area Ratio

FAR =  10

Community Facility use often gets a higher floor area ratio.

Plaza Floor Area Bonus:

1 to 6 ratio plaza to building floor area bonus

In C5-1 the Plaza Bonus applies to buildings with community facility use.

You can build 6 additional square feet of building for every square foot of plaza. Plazas have specific requirements not all locations qualify.

Arcade Floor Area Bonus 

1 to 3 ratio arcade to building floor area bonus

In C5-1 the arcade Bonus applies to buildings with community facility use.

You can build 3 additional square feet of building for every square foot of arcade. Arcades have specific requirements not all locations qualify.

Yard Requirements for Commercial Use in C5-1

Side Yards

Side Yards are not required, but if side yards are provided they must comply with the following:

At minimum 8 feet in width or

At minimum 5 feet in width with an average width of 8 feet.

Some special circumstances will require side yards.

Rear Yard

20 Foot rear yard required

C5-1 Height And Setback

Initial Setback Distance

20 feet on narrow street

15 on wide street

Building Height Within Initial Setback Distance = 85 feet or 6 stories whichever is less

Sky Exposure Plane Vertical to Horizontal

Narrow Street Sky Exposure Plane = 2.7 to 1

Wide Street Sky Exposure Plane = 5.6 to 1

C5-1 Alternate Height And Setback

Alternate height and setback regulations can apply if you provide open space for the entire length of the front lot line.

Depth Of Optional Front Yard

15 feet on narrow street

10 on wide street

Sky Exposure Plane Height Above Street Line = 85 feet

Sky Exposure Plane Vertical to Horizontal

Narrow Street Sky Exposure Plane = 3.7 to 1

Wide Street Sky Exposure Plane = 7.6 to 1

 

SLIVER LAW

You should always make sure if your property is subject to Sliver Law restrictions.

 

NYC Zoning

As an architect I study zoning very closely. NYC Zoning is complicated and quite involved. In this article we reviewed some of the basic Zoning Codes with regards to commercial zoning district C5-1. This analysis does not assume to cover every possible issue and condition, but provide a general overview. This post does not substitute the NYC Zoning Resolution.

 

Thank You for reading our Blog Post on C5-1 Zoning in NYC.

I hope this was helpful. You can leave questions or comments below. If you want to discuss a specific project with an architect or want help with a zoning analysis report please feel free to contact Fontan Architecture directly. We will be happy to help.

 

New York Architects, Jorge Fontan

Author Jorge Fontan AIA

This post was written by Jorge Fontan, a Registered Architect and owner of Fontan Architecture.

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