Site Prep, Land Clearing, and Foundations in Florida

Rules, Costs, and Slab vs. Stem Wall vs. Elevated

Before a single block is laid, your lot has to be surveyed, cleared, built up, and prepared for a foundation. In Florida, this stage is where many first-time builders run into rules they didn’t expect. These include tree permits, protected gopher tortoises, wetland permits, stormwater permits, and burn authorizations. It’s also where flood elevation decides what kind of foundation you need. This is part four of our series on building a house in Florida.

Short version: Start with surveys: a boundary survey, a topographic survey, a tree survey if your county requires one, and flood and soil information. Clearing usually needs local approval. In Orange County, for example, any vacant lot needs a tree removal permit, though an approved building permit covers removal for the house pad, driveway, septic area, and 15 feet around the pad. Florida’s arborist exemption from local tree rules applies only to lots already used as a single-family home, so it generally doesn’t cover clearing a vacant lot. Keep work at least 25 feet from gopher tortoise burrows unless an FWC-authorized agent relocates the tortoises under a permit. Wetlands need state permits, and federal permits from the Army Corps of Engineers. Disturbing an acre or more needs state stormwater permit coverage, and burning debris needs Florida Forest Service authorization. For foundations, slab-on-grade is most common. Stem walls raise the floor on compacted fill. In V flood zones, the code allows only pilings and columns. In A zones, the lowest floor must be at least 1 foot above the base flood elevation.

Step 1: Surveys and site information

• Boundary survey: confirms property lines, easements, and setbacks before anything is cleared.
• Topographic survey: shows ground elevations, so the designer can plan the pad height, drainage, and fill.
• Tree survey: many counties require one to remove regulated trees. Orange County, for example, requires a tree survey by a professional surveyor showing regulated trees of 8 inches in diameter or more, plus specimen and heritage trees.
• Flood information: your flood zone and base flood elevation set the minimum floor height. In flood zones, an elevation certificate tracks it through construction.
• Soils: sandy soils, a high water table, buried organic muck, and sinkhole-prone areas all affect the foundation. A geotechnical report may be worth it, and it’s sometimes required. See Florida sinkholes explained.
• Septic site evaluation: on lots without sewer, the septic system’s location and size depend on soils and the water table. See septic, sewer, and drainage.

Ideally, much of this happens before you buy the lot. See how to verify a vacant lot is buildable.

Step 2: The rules for clearing land in Florida

Local tree and clearing permits

Tree and land clearing rules are set mostly by counties and cities, so they vary. Orange County’s rules give a good sense of what to expect:

• A tree removal permit is required on any vacant or undeveloped property, regardless of size.
• With an approved building permit, trees can be removed for the building pad, driveway, septic system, and 15 feet around the house pad.
• Regulated trees are 8 inches or more in diameter at breast height and on the county’s list. Specimen and heritage trees get extra attention, and replacement plantings or mitigation fees may be required.
• The permit is valid for 60 days. It doesn’t authorize ground clearing or heavy earth-moving, which need separate approval, or removal in wetlands, conservation, or wildlife areas.

Check your own county and city before any equipment shows up. Clearing without a permit can bring fines and replacement requirements.

The state arborist exemption, and why it may not apply

Florida Statute 163.045 bars local governments from requiring a permit, fee, mitigation, or replanting to remove a tree on residential property. To qualify, the owner needs documentation from an ISA-certified arborist or a Florida-licensed landscape architect that the tree poses an unacceptable risk to people or property. But “residential property” is defined as a single-family detached building on a lot actively used for single-family residential purposes. A vacant lot being cleared for construction generally doesn’t meet that definition. The exemption also doesn’t apply to mangrove protection.

Gopher tortoises

Gopher tortoises are common on the sandy upland lots of Central Florida, and they’re protected. Under FWC rules, you can’t harm tortoises or their burrows without an FWC permit. No permit is needed if every burrow is avoided by 25 feet in all directions during development work, and that includes burrows on a neighbor’s property near the line. Otherwise, an FWC-authorized gopher tortoise agent must get a relocation permit for the property and move the tortoises before clearing. FWC staff don’t relocate tortoises themselves. Have the lot surveyed for burrows early, since relocation adds cost and time.

Wetlands

Filling or clearing wetlands needs state approval through an Environmental Resource Permit from your water management district or DEP. It may also need a federal Clean Water Act Section 404 permit. Florida ran the federal program itself from 2020 until a federal court vacated that approval in 2024. On March 27, 2026, a federal appeals court upheld that decision, and the U.S. Army Corps of Engineers is again issuing 404 permits in Florida. If your lot has any wet areas, get a wetland determination before you plan the house.

Stormwater and erosion control

Projects that disturb 1 acre or more, or less as part of a larger common plan of development, and that discharge stormwater to state waters or a storm sewer system, need coverage under DEP’s Construction Generic Permit. That means a stormwater pollution prevention plan, a Notice of Intent filed at least 2 days before construction, and a fee of $250 for 1 to under 5 acres or $400 for 5 acres or more. Smaller lots still need local erosion control, like silt fencing, to keep sediment out of streets and drains.

Getting rid of the debris

Cleared material is usually hauled off, chipped or mulched on site, or burned. Burning land-clearing debris requires authorization from the Florida Forest Service under Section 590.125. You need adequate firebreaks and equipment, and the responsible person has to stay on site until the fire is out. Many cities and some counties restrict or ban burning, so check locally. Burning without authorization is a misdemeanor.

What land clearing costs depend on

Clearing costs vary so much from lot to lot that an average is close to meaningless. A sparse lot cleared only for the house pad costs a fraction of a densely wooded acre that needs full stump removal and fill. Get at least three written quotes for the same scope. These are the things that drive the price:

• Scope: clearing only the pad, driveway, and septic area, or the whole lot
• Tree count and size, and whether stumps and roots must be ground or dug out (grubbing), which is required under the house
• Debris disposal: hauling and dump fees, chipping, or authorized burning
• Access and site conditions: wet ground, slopes, and how far equipment has to travel
• Environmental work: gopher tortoise surveys and relocation, wetland determinations, and buffers
• Fill and compaction: often bigger than the clearing itself on low lots
• Surveys, permits, and any tree mitigation fees

Government fees are the one piece you can price ahead of time. Here are a couple of examples:

Two ways to save: clear only what the house needs, since keeping mature trees gives you shade and can reduce mitigation. And make sure your builder’s contract says who’s responsible for clearing, fill, and debris. Those are common exclusions. See comparing builder bids.

Step 3: Fill, grading, and the building pad

Many Florida lots need fill to raise the house pad above flood levels or out of low ground. Organic soil and roots under the house are usually removed and replaced with clean, compacted fill. Many building departments ask for compaction test results before the slab is poured. Grading must move water away from the house and follow the drainage plan, without sending runoff onto neighbors. Some communities also limit fill in flood zones, so ask before you plan to raise the whole lot.

Step 4: Choosing a foundation

• A zones: the lowest floor must be at or above the base flood elevation plus 1 foot, or the design flood elevation if higher (Florida Building Code, Residential R322.2.1). Elevating on fill or stem walls is common.
• V zones (coastal high hazard): only pilings and columns are allowed. Shallow foundations and stem walls aren’t. Elevation is measured to the bottom of the lowest structural member, and enclosed areas below are limited to parking, building access, and storage, with breakaway walls.
• Coastal A zones: along the coast but landward of V zones. These allow pilings and columns, plus backfilled stem walls.

Building higher than the minimum can be worth it. It gives more protection, can affect your flood insurance premium, and adds peace of mind on low or waterfront lots. See Florida flood insurance and buying waterfront property.

Before the slab is poured, Florida homes also get termite protection, usually a soil treatment or approved barrier. That’s covered in the energy code and mechanical systems article in this series. See also Florida termite inspections.

Sources

• Florida Statutes, Section 163.045: Tree pruning, trimming, or removal on residential property
• Orange County: Tree removal permit
• Orange County: Combined tree removal application (2026)
• Florida Fish and Wildlife Conservation Commission: Gopher tortoise FAQs
• American Bar Association: D.C. Circuit affirms vacatur of Florida’s Section 404 program (2026)
• Florida DEP: Construction activity stormwater permitting
• Florida Statutes, Section 590.125: Open burning authorized by the Florida Forest Service
• Florida Division of Emergency Management: Guidance on slabs, floors, and openings in flood zones (2024)
• Florida Division of Emergency Management: Coastal construction and flood guidance (2024)

This article is for general informational purposes only and isn’t financial, legal, insurance, or tax advice – for guidance specific to your situation, talk to a licensed professional.