Environmental Rules in Gresham, OR (2026)

1 verified environmental rules for Gresham, Oregon, sourced directly from the municipal code and official government pages.

Verified from official government sources

Flood Zones

Gresham participates in the NFIP and regulates development in FEMA-designated flood zones. Properties in the floodplain have strict building requirements including elevation certificates and flood-resistant construction.

Gresham Flood Zone Regulations

Heavy Restrictions

Full ordinance details →Official source ↗

Looking for Multnomah County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Gresham city rules.

Environmental Rules in Multnomah County →