Florida project footprint
Estimate the acreage left after known constraints.
Start with gross acres, subtract the areas you know may be constrained, then correct for overlap. The result is an area budget—not a legal buildable envelope.
Transparent area math
Buildable-acreage planning screenWetlands, flood zones, easements, buffers and septic areas can overlap. Enter a reasonable overlap adjustment or the tool will double-count constrained acreage.
Why acreage alone can mislead
A five-acre parcel can have three acres left after mapped constraints and still fail the project if those acres are narrow, fragmented, landlocked from the road, outside the permitted building envelope, unable to fit septic setbacks, or separated from utilities by a regulated crossing. The opposite can also happen: a parcel with mapped constraints may still have a workable upland project area.
Best inputs
- Surveyed gross acreage rather than listing acreage
- Field-delineated wetland area where available
- Effective floodway/flood-zone mapping plus survey/elevation information
- Recorded easement areas and required buffers
- Approved or professionally planned septic/reserve areas
- Driveway width, turnarounds, drainage and utility corridors
FAQ
Buildable acreage questions
Is remaining acreage the same as buildable acreage?
No. It is only the arithmetic remainder from the areas you entered. Shape, access, setbacks, soil, drainage, zoning, wetlands and other rules can make some or all of the remainder unusable.
Why enter overlap?
A wetland can also be in a floodplain, or an easement can cross a setback area. Subtracting every mapped area independently can count the same land twice.
Can I use acreage estimated from an online map?
For screening, yes, if you label it as an estimate. For a purchase or design decision, use the deed, recorded plat and a survey as appropriate.