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🌍 Environmental Rules/Flood Zones

Flood Zones: Ayer vs Lexington

How do flood zones rules compare between Ayer, MA and Lexington, MA?

Ayer and Lexington have similar restriction levels.

Ayer, MA

Middlesex County

Heavy Restrictions

Ayer's Floodplain Overlay District in Article 8 of the Zoning Bylaw regulates all FEMA Zone A and AE special flood hazard areas shown on the Middlesex County FIRM panels dated June 4, 2010, with new construction and encroachments generally prohibited.

View full Ayer rules β†’

Lexington, MA

Middlesex County

Heavy Restrictions

FEMA FIRMs govern flood zones. Construction in Special Flood Hazard Areas must meet the MA State Building Code 780 CMR and local floodplain bylaws.

View full Lexington rules β†’

Key Facts Comparison

FactAyerLexington
Code SectionZoning Bylaw Article 8 (FOD)-
FEMA ZonesA and AE-
FIRM Effective DateJune 4, 2010-
FIRM Panels25017C0203E-0217E (8 panels)-
Standard780 CMR flood-resistant-
Maps-FEMA FIRM
Code-780 CMR App G
Elevation-Lowest floor at BFE
Program-NFIP
Cert needed-Elevation Certificate

Highlighted rows indicate differences between cities.

Ayer FAQ

Is my Ayer property in a flood zone?

Check FEMA's Map Service Center for Middlesex County FIRM panels effective June 4, 2010 to see if you are in Zone A or AE.

Can I build in Ayer's floodplain?

New construction in the Floodplain Overlay District is prohibited unless it meets 780 CMR flood-resistant standards and earns a special permit.

What FIRM panels cover Ayer?

Panels 25017C0203E, 0204E, 0208E, 0209E, 0211E, 0212E, 0216E, and 0217E, all dated June 4, 2010.

Lexington FAQ

How do I check my flood zone?

Look up your address on the FEMA Flood Map Service Center or call your city or town engineer.

Is flood insurance required?

It is required for federally backed mortgages on properties in SFHAs.

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