Marathon, FL · Monroe County · Permit search guide
Marathon permit search and official portals.
The City of Marathon issues building permits inside its city limits. Monroe County Building and Permitting (Building Department) issues them for unincorporated Monroe County. This guide links the city's official permit portal and explains how to look up a record.
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Guide reviewed Nov 11, 2026. Permit Press is an independent research service, not a government website.
- Permitting authority
- City
- Official links
- 4
- Monroe County city guides
- 3
Step by step
How to search permits in Marathon.
Start with the office for the property's address. The official source shows the permit's current status, inspections and documents.
Confirm the address is inside city limits
The City of Marathon issues permits only inside its city limits. A Marathon mailing address can lie outside them, where Monroe County Building and Permitting (Building Department) issues the permit.
Open the city's permit portal
Open the Marathon permit portal (OpenGov). Building Department, 9805 Overseas Highway, (305) 289-5052; all permits are submitted, reviewed and issued in the city's OpenGov portal, which also shows permit status.
Search by address or permit number
Search with the street address or the permit number where the portal offers those fields, then open the record for its status, inspections and documents. Some portals ask you to sign in before they show records.
Use the county search outside city limits
For a property outside Marathon city limits, use Monroe County Oracle Permitting and Licensing (OPAL) (Oracle OPAL), or contact Monroe County Building and Permitting (Building Department) (305-294-4641).
Good to know
Before you search
Marathon permits.
From the city's and county's own pages, checked Nov 11, 2026. Each note links the page it comes from.
City of Marathon: Building Department, 9805 Overseas Highway, (305) 289-5052; all permits are submitted, reviewed and issued in the city's OpenGov portal, which also shows permit status.
ci.marathon.fl.usThe county runs permitting offices in Key West, Stock Island, Big Pine Key, Marathon, Key Largo and Ocean Reef, serving the public 8:30 a.m. to 3 p.m.
monroecounty-fl.gov
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