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EBC Case Studies
The New York City Existing Building Code (EBC) will govern alteration applications filed on and after July 17, 2027. The Department is working to publish 6 case studies of typical alteration types. These case studies are intended to demonstrate how the EBC would govern such work, highlighting Code compliance and significant applicable triggers.
NOTE: Studies will be uploaded to this page as the studies are completed.
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Alteration Case Studies |
Project Narratives |
Drawings |
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Office Fit-Out |
Level 1 alteration of a high-rise office building, where the total work area is less than 50% of the building area. |
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Vertical Enlargement |
Addition and Level 1 alteration of an existing mercantile building. |
Architectural Structural Mechanical, Electrical, Plumbing & Fire Protection |
Architectural Structural Mechanical Plumbing Sprinkler Fire Alarm |
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Single Family Enlargement |
Addition and Level 1 alteration of an existing 2-story single family detached house. |
Architectural Structural Mechanical, Electrical, Plumbing & Fire Protection |
Architectural Structural Mechanical Plumbing Sprinkler Fire Alarm |
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Office to Residential |
Level 2 alteration and change of occupancy for an existing high-rise building from office to multiple dwelling. |
Architectural Structural Mechanical, Electrical, Plumbing & Fire Protection |
Architectural Structural Mechanical Plumbing Sprinkler Fire Alarm |
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School Building Gut Renovation |
Level 2 alteration of an existing school building, with work area to exceed 75% of building area. |
Architectural Structural Mechanical, Electrical, Plumbing & Fire Protection |
Architectural Structural Mechanical Plumbing Sprinkler Fire Alarm |
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Enlargement of a Converted Dwelling |
Addition and Level 1 alteration of a 4-story converted dwelling. |
Architectural Structural Mechanical, Electrical, Plumbing & Fire Protection |
Architectural Structural Mechanical Plumbing Sprinkler Fire Alarm |
For questions or additional assistance, send inquiries to EBC@buildings.nyc.gov.