In West Palm Beach, a permeable resin-bound surface counts as stormwater management only when it's installed over Rock Crete or another permeable base and an open-graded stone reservoir that lets rain soak into the ground, sized by an engineer against the local water table. Over existing concrete it becomes a decorative resurfacing layer, and the water still leaves by running across the slab.

West Palm Beach has an unusual reason to care where runoff goes. The City's primary water supply is surface water, carried from Grassy Waters Preserve through the M-Canal into Lake Mangonia and Clear Lake, the downtown supply lakes. The Comprehensive Plan commits the City to keeping stormwater runoff out of that source, and City drainage also reaches the Lake Worth Lagoon.

West Palm Beach's stormwater policy and where a permeable section fits

The Utilities Element of the City's Comprehensive Plan, effective March 2, 2026, directs the City to implement the stormwater requirements in its Zoning and Land Development Regulations together with South Florida Water Management District criteria. It sets level-of-service design storms of a 3-year, 1-hour event for the storm sewers and a 25-year, 24-hour event for the canals, calls for retention or detention where practical for water-quality treatment, and requires new development to limit post-development runoff rates to pre-development rates.

That last requirement is where a permeable resin-bound area earns its place. Storage in a stone reservoir under a parking court or driveway can help hold peak flows down without carving a pond out of a tight urban lot. The SFWMD Applicant's Handbook Volume II reviews subsurface exfiltration on representative or actual test data, and statewide rule changes effective June 28, 2024 add maintenance plans and inspections to new permits. The City's engineering plans checklist asks for impervious and pervious area totals and the groundwater table elevation, so expect those numbers to be checked.

Sandy ground, a shallow water table and a protected supply: notes for the engineer

Two local factors shape the base design. The first is depth to water. The SFWMD handbook treats soil storage under impervious surfaces as generally impractical, and impractical below about four feet except on the high, sandy coastal ridge, so the engineer should confirm the seasonal high water table at the reservoir and show its storage by calculation and site test data before counting its volume. Lots near the Lagoon or the City's canals usually have less room than higher sandy ground a short distance inland.

The second is water quality. Runoff that reaches the City's canals, Clear Lake, Lake Mangonia or the Lake Worth Lagoon matters more here than in most cities, which argues for holding the first part of each storm on site and for keeping fueling, dumpster and chemical storage areas off any infiltrating section. Older neighborhoods have small lots, mature trees and little room for ponds, exactly where distributed storage under paving is useful. Where borings find contaminated fill, a lined base with an underdrain is the safer choice.

Where it fits in West Palm Beach

Older neighborhood homes in El Cid, Flamingo Park, Grandview Heights and Northwood: driveways and garden courts that replace cracked concrete without adding runoff, with any historic design review checked first.
Downtown and Clematis Street courtyards: restaurant patios and pedestrian passages at grade, kept separate from structured decks where resin-bound is only a finish.
Condos and offices along Flagler Drive: walkways and entry drives on sites that drain toward the Lagoon.
Churches, schools and medical offices west of I-95: parking stalls and walks paired with conventional drive aisles.
Public facilities: plazas and paths where staff want visible green infrastructure that's practical to maintain.

Approval path in West Palm Beach and how Resin Rock helps

Site plan engineering goes to the City's Engineering Services Department, which uses an engineering plans checklist and an engineering stormwater checklist, with SFWMD permitting where thresholds are met. The Public Utilities Department's Stormwater Division operates the system the site connects to, including more than 125 miles of underground stormwater infrastructure and 11 miles of canals. Bring percolation results, the groundwater elevation, storage and recovery calculations, and a maintenance plan. Any credit toward required storage is the reviewer's decision.

Resin Rock, based in Sarasota, manufactures and supplies the binder, stone blends, trims and Rock Crete permeable sub-base, and provides data sheets for submittals. We train installers through our Florida installer training and can match Palm Beach County owners with an approved installer through find an installer.

Before you specify permeable resin-bound in West Palm Beach

Confirm the seasonal high water table at the reservoir location.
Run percolation tests for the storage and recovery calculation.
Show pre- and post-development discharge rates for the site.
Keep fueling, dumpster and chemical storage areas off infiltrating sections.
Fill in the pervious and impervious area totals the City's engineering checklist asks for.
Plan routine vacuum sweeping and an inspection schedule.

Common questions about permeable resin-bound in West Palm Beach

Why does West Palm Beach care so much about runoff from private lots?

Because the City drinks surface water. Supply flows from Grassy Waters Preserve through the M-Canal into Lake Mangonia and Clear Lake, and the Comprehensive Plan commits the City to keeping stormwater runoff out of that source. The Lake Worth Lagoon also receives City drainage. Holding and soaking in rain on site, where the soil and water table allow, supports both goals.

Does the City's stormwater utility give credits for permeable paving?

Don't count on one. The City's stormwater utility code sends fee adjustment requests to the public utilities director, who judges them on the site's impervious area, and it gives no credit for facilities that city, county or state stormwater rules already require. How a permeable surface is counted is the director's decision, so ask the Public Utilities Department before counting on savings.

Can resin-bound go on a downtown courtyard over a parking garage?

As a finish, yes, but it won't count as stormwater management there. Over a structural deck, water passes through the resin-bound layer and drains across the waterproofing to the building's drains. Infiltration only happens at grade, on Rock Crete or another permeable base over an open-graded stone reservoir and soil that can take the water.

Official sources for West Palm Beach

Local rules change. We last checked these sources in October 2026. Confirm current requirements with the reviewing agency before you design, and treat this page as a starting point, not engineering or permitting advice.

Permeable Resin-Bound Surfacing in West Palm Beach, FL