Broward County is one of only two counties in Florida that fall inside the state’s official High-Velocity Hurricane Zone (HVHZ) the other is Miami-Dade. Hillsborough County, where Tampa sits, is not. That single distinction changes which product certification your windows need, how strict your permitting review is, and what a wind mitigation inspector is checking for even though both counties use the same statewide insurance discount system.
Guardian Shield installs in both regions Tampa (Hillsborough) and Pembroke Pines/Davie (Broward) so this is a distinction our permitting team deals with on a weekly basis. Here’s what actually changes.
What HVHZ Actually Means (And What It Doesn’t)
The High-Velocity Hurricane Zone is defined in the Florida Building Code as covering Miami-Dade and Broward counties only. It’s not a marketing term or a general “coastal Florida” designation it’s a specific legal boundary that determines which product testing standards apply.
Every other county in Florida, including Hillsborough, Pinellas, and Pasco, follows the standard statewide wind-borne debris provisions of the Florida Building Code instead. Those provisions are still serious Tampa Bay sees plenty of hurricane exposure but the testing and certification bar is set differently.
Hillsborough County (Tampa): What’s Required
In Hillsborough County, impact windows and doors need a Florida Product Approval (FL#) rated for the wind speed and design pressure (DP) at your specific address. Design pressure requirements vary by exposure category, building height, and distance from the coast we cover how that’s calculated in our post on impact window ratings by Florida wind zone.
Key points for Tampa homeowners:
- Products need large-missile impact protection for openings at or below 30 feet, and small-missile protection above that height.
- A statewide Florida Product Approval is sufficient you do not need a Miami-Dade Notice of Acceptance (NOA).
- Permitting runs through the City of Tampa or unincorporated Hillsborough County building department, depending on your address.
Broward County (Pembroke Pines, Davie): What’s Required
Because Broward is inside the HVHZ, the bar is higher across the board:
- Products need to carry either a Miami-Dade NOA or a Florida Product Approval specifically endorsed for HVHZ use a standard statewide approval is not automatically accepted.
- Large-missile impact testing standards are more stringent (TAS 201/202/203 protocols), reflecting design wind speeds that typically run higher than non-HVHZ regions.
- Permitting and inspection protocols are generally more rigorous, including additional documentation tied to product approval numbers at time of permit submission.
- This applies to every opening at or below 30 feet, regardless of how far inland the specific property sits within the county.
Side-by-Side Comparison
| Hillsborough County (Tampa) | Broward County (Pembroke Pines, Davie) | |
| HVHZ status | Not in HVHZ | Fully within HVHZ |
| Required approval | Florida Product Approval (FL#) | Miami-Dade NOA or HVHZ-endorsed FL# |
| Testing standard | Standard FBC wind-borne debris protocol | TAS 201/202/203 (more stringent) |
| Design pressure basis | Site-specific DP calculation | HVHZ-specific wind speed maps (typically higher) |
| Permitting body | City/County building department | City/County building department (stricter document review) |
| Insurance credit system | Statewide OIR-B1-1802 | Statewide OIR-B1-1802 |
The last row matters: the insurance discount process itself is identical in both counties. HVHZ status changes what product you need to install, not how the insurance credit is calculated once it’s in.
Why This Trips Up Homeowners (and Some Contractors)
The most common mistake we see is a homeowner or out-of-area contractor assuming a product approved for use in Tampa is automatically fine for a Davie or Pembroke Pines property, or vice versa. Building departments in Broward County will reject a permit application for a window that only carries a standard, non-HVHZ Florida Product Approval even if the physical product is otherwise identical to what’s installed two counties north.
This is also why “Miami-Dade approved” gets treated as a shorthand for quality in Broward County real estate and HOA conversations it’s really shorthand for “meets the more demanding testing standard,” not a guarantee that it’s a better product than an equally well-rated Florida Product Approval item used outside the HVHZ.
How Guardian Shield Handles Both Zones
Because we operate offices in Tampa and South Florida, our permitting team pulls the correct product documentation for whichever building department is reviewing your job HVHZ-rated for Broward County projects, standard FL Product Approval for Hillsborough projects before your permit is ever submitted. That’s part of what we mean when we say we handle product selection, permitting, and inspection from start to finish.
FAQ
Is Palm Beach County part of the HVHZ? No. Only Miami-Dade and Broward counties are officially designated HVHZ under the Florida Building Code. Coastal Palm Beach County has some enhanced local requirements in certain jurisdictions, but it is legally distinct from the HVHZ designation.
Can I install an HVHZ-rated window in a non-HVHZ county like Hillsborough? Yes. HVHZ-rated products meet or exceed standard Florida Product Approval requirements, so they’re accepted outside the HVHZ. The reverse isn’t true a standard, non-HVHZ product typically cannot be used inside Broward or Miami-Dade County.
Does living in Broward County automatically mean a higher insurance discount? Not necessarily. The wind mitigation credit is based on the OIR-B1-1802 inspection results and your specific carrier’s discount schedule, which applies the same way statewide. HVHZ status affects which product qualifies for the “opening protection” category, not the size of the discount itself.
Do I need a different permit process if I live in unincorporated Broward County versus a city like Davie? Yes, the reviewing building department can differ. Davie, Pembroke Pines, and unincorporated Broward County each maintain their own permitting office, though all enforce the same HVHZ product standards.
Confirm Your Impact Window Requirements
Not sure which product standard applies to your address? Get a free consultation and our team will confirm your zone, design pressure requirements, and the exact product approvals your permit will need whether you’re in Tampa, Davie, or Pembroke Pines.
