Instant ADU Space Check — Does Your Lot Qualify?
Pick your Central Florida county, enter your lot numbers, and get a sourced coverage-and-rules answer instantly: no address submission, no waiting on a manual review.
Most “ADU space check” tools work the same way: you hand over your address, someone on the other end looks at an aerial photo, and you get an email back a business day later. That’s slow, and it’s still just eyeballing a satellite image against no data.
This one is instant, and not because it’s a gimmick. Central Florida ADU Authority already maintains sourced, cited ADU rules for all nine counties, so answering “does my lot work” in real time just means reusing data we’ve already built, not eyeballing a photo.
Free · instant · no address required
Instant ADU Space Check
Pick your county and enter your lot numbers. You get a sourced, math-backed answer in this page, right now — not an email tomorrow.
What this checks (and what it doesn’t)
The lot-coverage math above is exact: current coverage, coverage after your proposed ADU, and how much headroom you have against the limit you enter. That’s arithmetic, and arithmetic doesn’t need a human reviewer or a day of turnaround.
The reference facts that appear once you pick a county (max ADU size, minimum lot size, owner-occupancy, short-term rental allowance, parking, typical permit timeline) come from the same sourced jurisdiction data that drives every county page on this site, cited to the actual ordinance or code section.
What it can’t do: confirm your specific zoning district’s coverage limit (that varies below the county level, so check your county page and code for the exact figure), check setbacks and easements against your actual parcel survey, or replace a real conversation with your county’s planning office. For the full manual walkthrough, pulling your actual parcel record, deed restrictions, and FEMA flood zone, see the Zoning & Lot Check guide.
Why we built this
Every number this tool shows is one we already publish and source elsewhere on the site: the county pages, the Florida ADU Law primer, and the cost and financing pillars all draw from the same jurisdiction data. Turning that into an instant, interactive check took an afternoon, not an intake form and a review queue. If you spot a number here that doesn’t match your county’s current code, tell us on the corrections page.
Frequently asked questions
- Does the ADU Space Check require my address?
- No. You enter your lot size, existing structure footprints, and proposed ADU size directly. Nothing is submitted anywhere, and no one reviews your property. The tool runs entirely in your browser against the same sourced county rules published on each county page.
- How is this different from a manual space-check or site-review service?
- Manual review services ask for your address and email you a result, typically within a business day. This tool computes your lot-coverage math instantly using numbers you enter, and shows your county's current published size cap, minimum lot size, owner-occupancy, short-term rental, and parking rules at the same time, with no wait and no address handed over.
- Can this tool tell me for certain that my ADU will be approved?
- No tool can guarantee approval. That depends on your specific parcel, zoning district, and a review by your county planning office. What this tool gives you is an exact lot-coverage calculation from the numbers you enter, plus your county's current sourced rules, so you walk into that process already knowing where you stand.