603.13 Flood hazard areas.
MC § 603.13
For structures in flood hazard areas, ducts shall comply with the additional requirements of Appendix G of the New York City Building Code.
Brooklyn since 2014All five boroughsSame-day response during business hours
What is NYC MC § 603.13?
Quick Answer
This section mandates that ducts in structures located within flood hazard areas adhere to the additional requirements specified in Appendix G of the New York City Building Code. Applies to building owners with properties in designated flood zones.
General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.
From the team atNacmias Law Firm, PLLCBrooklyn-based attorneys representingproperty owners across all five boroughsMeet the team →
Common Questions
Our team
Meet the people you will work with
TI
Tiffany Irizarry
Legal Coordinator
OATH / DOB
SM
AS
BS
AB
TI
Tiffany Irizarry
Legal Coordinator
OATH / DOB
SM
AS
BS
AB
Resources & updates
Practical resources for NYC legal problems.
Browse practical legal articles, violation-code tools, city-agency resources, and searchable references without leaving the landing page.
External Tool
NYCScope
NYC property data, violations, and permits — look up any building by address.
nycscope.comOpen
DOB Violations
NYC DOB Certificate of Correction: New DOB NOW Safety Portal Launches December 2025
The new DOB NOW: Safety portal is live as of December 15, 2025. Learn the 5 key changes, step-by-step submission process, and how to avoid the 20 common disapproval reasons.
8 min readOpen
Building Code Violations
What Are the Critical NYC DOB Updates for December 2025?
NYC property owners face urgent DOB deadlines: a historic basement legalization program, year-end inspection reports due December 31st, and the new 2025 Electrical Code effective December 21st. Here's what you need to know.
8 min readOpen
DOB Violations
Understanding DOB Violations: A Complete Guide
Your complete guide to understanding, navigating, and resolving NYC Department of Buildings violations with confidence. Learn about violation classes, penalties, and resolution strategies.
15 min readOpen
1 / 3
Need something specific? Search the full resources library for articles, agencies, violation codes, and legal-code references.
Search all resourcesFree case review
Have a matter that touches § 603.13?
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.
Same-day response
During business hours
Direct attorney access
Same lawyer from intake to close
Flat-fee pricing
On most OATH and closing matters