FLORIDA · PALM BEACH COUNTY JURISDICTION

Where the Atlantic meets Flagler Drive, the wind sets the structural rules

West Palm Beach faces open ocean across the Intracoastal Waterway, so design winds run among Florida's highest — without the statutory HVHZ label that belongs only to Miami-Dade and Broward.

165–175MPH RISK II · VARIES BY SITE
Palm BeachCOUNTY JURISDICTION
ASCE 7-22FBC 8TH EDITION (2023)

A COMMON MISLABEL · CORRECTED

High winds, but not a High-Velocity Hurricane Zone

The statutory HVHZ covers only Miami-Dade and Broward. Palm Beach County sits just north of that line — serious coastal winds, ordinary FBC enforcement.

West Palm Beach designs to the same elevated 3-second-gust speeds as its HVHZ neighbors, yet products clear through standard Florida Product Approval rather than a county NOA program. Treat it as a high-wind, wind-borne-debris county — not as HVHZ.

ATLANTIC EXPOSURE · BARRIER-ISLAND FETCH

Reading exposure from the oceanfront inland

Distance from open water drives the exposure call between Flagler Drive and the western suburbs near Wellington and Royal Palm Beach.

Exposure D — oceanfront

Lots fronting the Atlantic and the Intracoastal Waterway, where unobstructed water fetch demands the most severe pressures.

SHORELINE SITES

Exposure C — the default

Open coastal terrain with scattered obstructions; the conservative baseline across most West Palm Beach parcels.

MOST PROJECTS

Exposure B — sheltered inland

Western neighborhoods with dense, durable obstructions — allowable only with engineering justification the official accepts.

JUSTIFY IN WRITING

PERMIT-READY · PALM BEACH COUNTY

What a sealed West Palm Beach submittal has to show

Six items separate an approvable wind package from a rejected one along this stretch of coast.

Site-specific design speed

Pull V from the ASCE 7-22 map for the exact address — roughly 165–175 mph Risk II, never a single assumed figure.

VARIES BY SITE

Exposure determination

Document C, D, or justified B against the actual surrounding terrain expected over the building's life.

C / D / B

Risk-category mapping

Per Table 1.5-1, higher categories read a longer return-period map — III and IV pull a higher V than Risk II.

TABLE 1.5-1

Wind-borne-debris glazing

All of Palm Beach County is a debris region: impact-rated openings or approved shutters on every exterior glazed assembly.

IMPACT OR SHUTTERS

Florida Product Approval

Roofing, cladding, doors and windows carry a state approval (or accepted Miami-Dade NOA) — no county NOA exists here.

STATE APPROVAL

FL-licensed seal

MWFRS and C&C pressures signed by a Florida PE or Architect, complete under ASCE 7-22 per FBC 8th Edition.

PE / ARCHITECT

RUN THE NUMBERS FOR YOUR ADDRESS

Calculate West Palm Beach loads from your exact coastal coordinates

Enter a Palm Beach County address and let the calculator pull the site V, exposure, and C&C pressures into a sealed-ready report.