How do I find the design wind speed for a home in Brevard County, Florida?

Brevard County publishes free Building Code Wind Speed Maps by risk category. Enter the property address and the map returns the design wind speed used for permitting on Florida's Space Coast.

Two houses four miles apart in Brevard County can be built to different standards. One needs impact-rated glass or approved shutters on every opening. The other does not. Nothing about the two houses looks different from the street, and neither listing says a word about it. The difference is where each one sits relative to the coast and what design wind speed the Florida Building Code assigns to that address.

This matters to you twice. It matters when you are comparing two homes on the Space Coast and trying to understand why one has heavy laminated glass and the other has aluminum panels stacked in the garage. And it matters when you call for an insurance quote and the carrier starts asking about opening protection. Here is how to look up the number yourself before you write an offer anywhere in Brevard County.

What is the wind-borne debris region, and is Brevard County in it?

The Florida Building Code defines a wind-borne debris region in Section 1609.2. It covers areas within one mile of the coastal mean high water line where an Exposure D condition exists upwind at the waterline and the ultimate design wind speed is 130 mph or greater, plus any area where the ultimate design wind speed reaches 140 mph or greater.

Parts of Brevard County fall inside that region and parts do not. Brevard is not in the High Velocity Hurricane Zone, which is the stricter standard applied in Miami-Dade and Broward counties. So the honest answer for the Space Coast is: it depends on the address, and the address is knowable in about ninety seconds.

When a property does sit in the wind-borne debris region, exterior glazed openings have to be protected. The code points to the Large Missile Test standards in ASTM E1996 and ASTM E1886. In plain terms, that means impact-rated windows and doors, or approved coverings that have been tested to take a hit.

How to look up your Brevard County address

Brevard County Planning and Development hosts Building Code Wind Speed Maps broken out by risk category. The county's instructions are straightforward: pick the risk category that matches the structure, open the map, and search the full street address including street number, street name, and city.

Risk category is where most people get stuck, so here is the short version.

Risk Category What it covers Relevance to a Space Coast home buyer
I Low hazard to human life, including screen enclosures, minor storage, agricultural facilities This is the category for a pool cage or screen room, not the house itself
II Everything not listed in I, III, or IV This is your single family home, townhome, or condo building
III Substantial hazard, including large assembly occupancies and public utility facilities Rarely relevant to residential buyers
IV Essential facilities such as hospitals, fire and police stations, emergency shelters Rarely relevant to residential buyers

For almost every house on the Space Coast, you want the Risk Category 2 map. Note the split: your house is Category II, but the screen enclosure over the pool is Category I. That is why enclosures sometimes get permitted to a different number than the structure they attach to, and why a screen cage can come down in a storm that the house shrugs off.

Why the number changes what you pay

Design wind speed does not appear on a property tax bill or in a listing description, but it shows up in three places that cost real money on the Space Coast.

  • Opening protection. If the address sits in the wind-borne debris region, new construction and major remodels need impact-rated products or approved coverings. Retrofitting an older Brevard County home to that standard is a five-figure conversation, not a weekend project.
  • Insurance underwriting. Carriers care enormously about whether openings are protected and whether the protection is documented. A home in Melbourne with full impact glass and a home in Melbourne with nothing are not priced the same way.
  • Permits on future work. When you replace windows, sliders, or garage doors on a Brevard County home, the permit is reviewed against the wind speed for that address. Buyers who plan a renovation should know the number before closing, not after.

What to check before you write an offer in Brevard County

Run the address through the county wind speed map yourself. Then ask three questions about the specific house.

First, what protects the openings right now? Impact-rated glass, accordion shutters, roll-downs, aluminum panels, and plywood are not equivalent, and only some of them satisfy code and satisfy an underwriter.

Second, is there documentation? Product approval numbers, a Notice of Acceptance, or permit records for the window replacement are what an insurance carrier will want to see. Undocumented work is worth much less than documented work on Florida's Space Coast.

Third, does the garage door match? Garage doors are the single largest opening on most Brevard County homes and the one most often skipped when a seller upgraded the windows years ago.

Brevard County Building Permits can be reached at (321) 633-2187 for code questions, and the department sits at 2725 Judge Fran Jamieson Way in Viera. The Florida Building Commission publishes background on how the statewide code is developed and applied.

Frequently asked questions

Are impact windows required everywhere in Brevard County, Florida?

No. Opening protection is required where the address falls inside the wind-borne debris region as defined by the Florida Building Code. Parts of Brevard County qualify and parts do not, which is why the county's address-level wind speed map is the right tool rather than a general rule of thumb.

Is the Space Coast in the High Velocity Hurricane Zone?

No. The High Velocity Hurricane Zone applies to Miami-Dade and Broward counties. Brevard County homes are built to the standard Florida Building Code requirements for their design wind speed, which is a different and generally less stringent set of rules than the HVHZ.

Does my pool cage have to meet the same wind standard as my house?

Screen enclosures are listed under Risk Category I in the Brevard County wind speed map guidance, while the home itself falls under Risk Category II. They are permitted against different maps, so an enclosure can meet code and still be the first thing to fail in a strong storm.

If you are looking at homes anywhere on Florida's Space Coast and want to know what a specific address actually requires before you get emotionally attached to it, ask. I would rather pull the wind speed and the permit history for you in advance than have it surprise you during the inspection period. My partner Nichole and I got your back. Reach out anytime at (321) 212-7676 or www.livingspacecoast.com.