Retaining wall permit checklist — Port St. Lucie, Florida
Assembled from Port St. Lucie’s own published permit rules. Every line below is quoted from a city document and linked to it. Nothing here is generated, estimated, or inferred from another jurisdiction.
Do you need a permit?
Port St. Lucie requires a permit for a retaining wall.
Two provisions added by Chapter 2026-63, Laws of Florida (CS/CS/HB 803, 2026 Regular Session) reach retaining walls as of July 1, 2026. Under Florida Statutes Section 553.79(1)(i) a local government has to allow a retaining wall running across more than one lot to be permitted as a single project where the properties are single-family, two-family or townhouse, rather than requiring a permit lot by lot. Section 553.79(1)(g) is the separate exemption for work under $7,500, which excludes structural work and any property wholly or partly inside a flood hazard area. Port St. Lucie has not published how it implements either provision, so an owner planning a shared wall should ask the Building Department how to file it as one project.
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Sources
- retaining wall — permit rules ↗verified August 2026
Other permits Port St. Lucie publishes rules for
Listed because the city publishes a separate rule for each type — not because this project necessarily triggers one. Whether it does depends on your scope of work.
- Deck permit checklist
- Fence permit checklist
- Shed permit checklist
- Water heater permit checklist
- Re-roof permit checklist
- Electrical work permit checklist
- General building work permit checklist
BuildSpec is a reference, not the authority having jurisdiction. Confirm requirements with Port St. Lucie before you build.