Brooklyn since 2014All five boroughsSame-day response during business hours

What is NYC FC § 504.1.2.1?

Quick Answer

This section outlines the requirements for detached ancillary dwelling units regarding frontage space. It specifies that such units are exempt from providing frontage space if access to the main front entrance complies with the unobstructed access requirements in FC 504.1.2 and Table U103.8 of the Building Code. Applies to building owners of detached ancillary dwelling units.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

Michael Nacmias - Founding PartnerMichael Sargo - Partner
From the team atNacmias Law Firm, PLLCBrooklyn-based attorneys representingproperty owners across all five boroughsMeet the team →

504.1.2.1 Detached ancillary dwelling units.

FC § 504.1.2.1

A detached ancillary dwelling unit is not required to provide frontage space if access to the main front entrance of the detached ancillary dwelling unit is provided in accordance with the requirements for unobstructed access set forth in FC 504.1.2 and Table U103.8 of Appendix U of the Building Code. (L.L. 2024/127, 12/18/2024, eff. 6/16/2025)

Common Questions

Our team

Meet the people you will work with

Free case review

Have a matter that touches § 504.1.2.1?

Free 15-minute case review with the attorney handling your matter. Same-day response during business hours across all five boroughs — OATH hearings, Housing Court, and real estate closings.

Or email us

[email protected]

An attorney reads every message.

  • Same-day response

    During business hours

  • Direct attorney access

    Same lawyer from intake to close

  • Flat-fee pricing

    On most OATH and closing matters