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NYC flood planning

A flood checklist for NYC property managers

A useful building plan fits on a page someone can find at night. Start with the people and access needed to respond, then add the inspections and records that prevent avoidable delays.

FloodNYC · GreenRoom Remediation LLC · Updated November 10, 2026

Safety first. For immediate danger, leave the area and call 911. General guidance cannot establish whether your property is safe to enter.

Before a storm or a plumbing emergency

Keep current emergency contacts for the super, managing agent, plumber, electrician and restoration provider. Identify who can authorize work and how they are reached after hours. Record safe access arrangements and shutoff locations for qualified staff. Review the plan when staffing or building access changes.

Give lower-level occupants a real plan

Share official alerts and clear instructions on where to go if flooding threatens. Do not rely on a message that says only “use caution.” Identify occupants who may need assistance and plan with them before an emergency. NYC’s Be Ready guidance encourages advance planning and emergency alerts, including information relevant to basement residents.

Check routine drainage issues before heavy rain

Have appropriate staff or professionals review known drainage trouble spots and maintenance needs. Report blocked or damaged public catch basins to 311. Do not send anyone into traffic, moving water or an unsafe drain area to clear a blockage. Record recurring problems so they can be investigated instead of treated as isolated events.

When a loss occurs, coordinate the handoff

Name a single onsite contact. Share affected unit numbers, access restrictions, elevator rules and known material concerns with the responding team. Confirm who is addressing the source. Keep occupants informed about access needs and equipment, without making promises about drying time or habitability that have not been verified.

Keep a closeout record that helps next time

Collect the source-repair findings, photos, scope changes, drying records and outstanding repairs. Note any inaccessible areas. Ask what must happen before rebuilding. After the incident, update the contact list and review delays: Was a key missing? Could staff reach the source unit? Was the authorization contact unavailable? Small administrative fixes can make the next response more organized, even when they cannot prevent the original leak.

Official guidance & further reading

These resources support the general guidance above. Site conditions, policy terms and official instructions take priority. No agency endorsement is implied.

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