Minneola’s worksheet uses a direct ratio: total impervious area divided by total lot area, multiplied by 100. The hard work is defining and measuring both inputs.
Inventory before calculating
Use a survey and dimensioned plan to list the house footprint, garage, roofed areas, driveway, walks, patios, pools or decks, accessory structures, and every proposed addition the City treats as impervious. Keep existing and proposed columns so double-counting is visible.
For 3,400 square feet of included surface:
- On an 8,000-square-foot lot: 3,400 ÷ 8,000 × 100 = 42.5%.
- On a 10,000-square-foot lot: 3,400 ÷ 10,000 × 100 = 34.0%.
The same construction produces an 8.5-percentage-point difference because lot size changes. That is why a neighboring parcel’s ratio is not a safe proxy.
The worksheet lists caps ranging from 40% to 75% by classification. Confirm the parcel’s zoning district and applicable cap with the City before comparing. Attach the calculation to the zoning-clearance application, along with the source dimensions and plan revision.
If a review correction changes one area, update the inventory, numerator, ratio, and drawing together. A percentage without its included-surface ledger cannot be audited.