If you have ever applied for a building permit in Florida — for new construction, an addition, a major renovation, or a code violation resolution — you have probably been told you need “signed and sealed plans.” But what exactly does that mean, and why are they required? Here is everything property owners and contractors need to know about signed and sealed plans in South Florida.
What Are Signed and Sealed Plans?
Signed and sealed plans are construction drawings (architectural, structural, mechanical, electrical, or plumbing) that have been reviewed, signed, and stamped with the official seal of a Florida-licensed architect or professional engineer. The signature and seal confirm that a licensed professional has designed or reviewed the plans and certifies that the work meets the requirements of the Florida Building Code.
In South Florida — particularly Miami-Dade and Broward County within the High Velocity Hurricane Zone (HVHZ) — signed and sealed plans are required for virtually every permitted construction project beyond the simplest cosmetic repairs.
When Are Signed and Sealed Plans Required?
The Florida Building Code requires signed and sealed plans for any project involving structural work (load-bearing walls, foundations, framing modifications, roof structures), additions or new construction of any size, hurricane impact window and door installation, electrical and plumbing systems beyond simple replacements, mechanical work including HVAC system design, commercial construction of any kind, and code violation resolutions that require new permits.
Most South Florida building departments will reject a permit application immediately if it lacks proper signed and sealed plans for permittable work.
Why Florida Requires Licensed Professional Seals
Florida’s strict signing and sealing requirements protect property owners, occupants, and the public. The licensed professional’s seal certifies that the design meets life safety requirements, structural integrity standards for hurricane and wind loads, electrical and plumbing code compliance, and energy code requirements.
How IG Permit Expeditors Handles Signed and Sealed Plans
IG Permit Expeditors works directly with licensed Florida architects and engineers to prepare complete signed and sealed plan sets for every client. Whether you have a new construction project, a major renovation, an addition, or a code violation that requires corrective drawings, we handle the entire engineering coordination process in-house. Our process includes initial site assessment, drafting of construction drawings, engineering review and structural calculations, application of the official seal and signature, and submission to the correct building department.
Get Started Today
Need signed and sealed plans for your South Florida construction project or code violation? Call IG Permit Expeditors at (305) 686-9924 or request a free consultation online.