Enter your lot details to instantly calculate your current coverage and how much space you have left to build. Free — no signup needed.
Fill in your lot details on the left — your coverage calculation will appear here instantly.
Your permit application requires a site plan that accurately shows all existing and proposed structures. We prepare it from $79, delivered in 12–24 hours.
💬 WhatsApp Us for a Free Quote Get a Free Quote →Use the Site Plans FL Lot Coverage Calculator to estimate how much of your property is covered by buildings, structures, driveways, patios, pools, sheds, and other improvements. This tool helps Florida homeowners, contractors, and property owners understand lot coverage before preparing a permit site plan.
Lot coverage is often reviewed during permit applications because cities and counties may limit how much of a property can be covered by structures or hard surfaces. A quick estimate can help you plan better before submitting drawings for a pool, addition, driveway, shed, patio, ADU, or commercial improvement.
Lot coverage is the percentage of your property that is covered by buildings or site improvements. Depending on local rules, this may include the main house, garage, shed, pool deck, patio, driveway, walkway, accessory structure, or other impervious surfaces.
The basic formula is:
Lot Coverage = Covered Area ÷ Total Lot Area × 100
For example, if your lot is 10,000 square feet and covered areas total 3,000 square feet, your estimated lot coverage is 30%.
Florida cities and counties often review lot coverage to confirm that a project fits within zoning and development limits. If your proposed project pushes the property over the allowed coverage limit, the permit office may request revisions or reject the plan.
Lot coverage may affect:
Important Note
This calculator provides a general estimate only. Lot coverage rules vary by city, county, zoning district, property type, and project scope. Final approval depends on your local permitting office.
For accurate permit support, Site Plans FL can help prepare a clear permit-ready site plan showing existing and proposed improvements.
Answers to common questions to help you understand the tool:
A lot coverage calculator estimates what percentage of your property is covered by buildings, structures, driveways, patios, pools, and other improvements.
Lot coverage is usually calculated by dividing the total covered area by the total lot area, then multiplying by 100 to get a percentage.
Permit offices may review lot coverage to confirm that your project does not exceed zoning or development limits for the property.
Covered area may include the house footprint, garage, shed, driveway, patio, pool deck, walkways, ADU, and other structures. Exact rules vary by city and county.
Sometimes. Some areas may count the pool, pool deck, or surrounding hardscape differently. Always check local permit requirements.
In many cases, driveways may count as impervious surface or site coverage. The exact classification depends on local zoning rules.
From a simple pool permit to a full residential site plan with drainage notes — we prepare every type of permit-ready drawing Florida building departments require.
Permit-ready site plans for Florida homeowners — decks, additions, ADUs, garages, sheds, fences, and home renovations. GIS-verified, formatted for your county building department.
Site plans reviewed, signed, and sealed by a licensed Florida Professional Engineer. Required for many commercial projects and certain residential permits across Florida counties.
Florida pool permit site plans showing pool/spa location, setbacks, barrier compliance, and impervious surface notes. Ready for county building departments and pool contractors.
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From a simple pool permit in Miami-Dade to a PE-stamped commercial plan in Hillsborough — our team handles the research, drafting, and formatting so your permit gets approved first time.
