PE-sealed concrete slab drawings for Tampa, Brandon, Riverview, Plant City and Valrico — foundation and soil-bearing design sized for Hillsborough County, ready for Hillsborough County (with the City of Tampa reviewing separately). Same-day quote, most packages complete in 5–7 business days.
A new concrete slab — for a room addition, shed, AC or generator pad, or outdoor kitchen — is foundation work, and in Hillsborough County it needs a permit with PE-stamped drawings. We engineer the slab thickness, reinforcement and footings for your loads and your site.
In Hillsborough County, most new slabs that carry a structure or equipment need a permit and sealed engineering. The design isn't about wind — it's about the ground: soil-bearing capacity, slab thickness, reinforcement, footing depth and a vapor barrier. The engineer sizes all of that so the slab won't crack, settle or heave. Confirm the specifics with Hillsborough County (with the City of Tampa reviewing separately) before you build.
Hillsborough County typically has karst terrain in places — parts of Hillsborough are sinkhole-prone. That's why a slab package starts with the soil: presumptive bearing under the Florida Building Code, or a geotechnical report where conditions call for one. From there we size the slab thickness, the reinforcement and the footing depth so the foundation performs — the part Hillsborough County reviews most closely.
We prepare concrete slab permit packages across Hillsborough County, including Tampa, Brandon, Riverview, Plant City and Valrico. Wherever your site is, the drawings are sealed for your address's exact conditions.
Franca Engineering prepares concrete slab permit packages from $1,500 — full PE-stamped drawings, foundation and load calculations for your Hillsborough County site, and response to plan-review comments (re-sealing until approved is included). County permit fees are separate and paid to the building department.
Send your slab size, what it will support, and your address — we quote the same day and most packages are ready in 5–7 business days.
Start Your Project →In Hillsborough County, a slab that supports a structure, an addition, or heavy equipment needs a permit and PE-sealed drawings. A small at-grade patio slab may be exempt, but the threshold is set locally — confirm with Hillsborough County before you pour.
It covers slab thickness, reinforcement (rebar or mesh), footing size and depth, and edge details, all sized for the load and for Hillsborough County's soil conditions — karst terrain in places — parts of Hillsborough are sinkhole-prone. The sealed drawings and calculations are what the building department needs.
Engineering drawings are usually ready in 5–7 business days. Plan review through Hillsborough County (with the City of Tampa reviewing separately) then typically runs one to three weeks, faster when the package is complete and sealed on the first submission.
More resources: Florida Concrete Slab & Footing Design · Outdoor Kitchen & Slab
Nearby counties: Polk County Concrete Slab Permits · Lee County Concrete Slab Permits