You don't know what's actually buildable
Assessor data says a lot exists and who owns it. It doesn't say whether the town will let you put a house on it. The wetland buffer, the frontage rule, the minimum lot size — you find those out after the deposit, or after an hour at town hall.
You find the good lots last
Foreclosure filings, tax takings and lis pendens are recorded months before a listing, indexed by surname and scattered across recording districts. By the time it lists, three other builders have already called. Nobody sweeps that feed for you.
Eight signals, scored on every parcel.
Each one is available somewhere. Nobody puts them on the same row. Any lot carrying two or more sorts to the top of your list.
From a town to a lot, in four moves.
- 01Pick a town
Every parcel in the town, already scored.
We hold 9.7M+ parcels across 1,660 towns. Each town shows exactly what we hold for it — by-right capacity, the dimensional table, permits, recorded filings. No town looks like more than it is.
- 02Town intelligence
What the zoning allows against what actually got built.
State density laws let towns permit multifamily by right, often on land still holding a single house. We map those districts to individual parcels and set the total against the town's own new-build series. That gap is headroom nobody is building into yet — and we call it headroom, not a forecast.
Read this number right: The town total is gross capacity: plan-or-zoning density before wetlands, frontage and septic. It sizes a market. The parcel's own report is what you can build. The gap between the two is the product, not an error in it.
- 03The site report
"0 homes" is the most valuable answer we give.
The town's dimensional table applied to the parcel's real shape: usable width against the frontage rule, dry area against the lot minimum, nonconforming status, maximum buildable floor area. Deal-killers first, then the upside, then what we haven't assessed. Parcel outline on live satellite imagery, and you can click any neighbour to price it too.
- 04What's available
Counted per town, one click to the map.
Vacant land, teardown candidates, upzoned parcels and recorded distress. Any lot carrying two at once sorts to the top. Recorded filings carry a filing date, so that is the count that moves week to week.
Most land isn't owned by someone who answers mail.
It's an LLC, a trust, an estate, or an heir three states away. Mail the whole town and you convert one to three percent. So we rank owners on the signals that actually precede a sale — and then give you the way to reach them.
A feasibility report you can hand to a partner.
There are no land comps, so nobody prices land off them — you price it backwards, from the finished house, minus what it costs to build, minus the margin you need. That is the tool, and it is built into the parcel.
- What finished homes sell for in that town, from the recent new-build cohort
- Your hard and soft cost per foot, demolition, and target margin
- The age of the newest sale stated on the number, so you know how stale it is
- Saved against the parcel, so the figure you quoted last month is still there
The report shares as a link that needs no account, because the person you are sending it to doesn't have one. The server decides what each audience sees: an owner gets the study without your pricing or your residual land value; a partner or a lender gets the full document, with every figure still citing the record it came from.
Where we haven't swept a town yet, the report says so in plain words.
"This is not a clean-title result — it means we haven't looked." When we have no wetland mapping for a town, the parcel reads unknown, never clear; a blank presented as a clean lot is the one mistake that costs you a closing. When a parcel's district comes from the town's default rather than the town's own zoning map, it says that too — right beside the unit count that depends on it. Coverage expanding region by region, and we don't promise a date for a specific town.
Public data is public. The work is what we do to it.
GroundIQ reads each town's published zoning tables, reconciles them with the assessor, the measured parcel and the state district atlas, sweeps recorded documents for filings, and scores every parcel against all eight signals. Every number cites its source, and when it doesn't know, it tells you.
Sold by territory, not by seat.
A builder who overpays $50K on one lot doesn't blink. Compare it to the thing it prevents: one deal covers years of GroundIQ.
Give us an address you'd normally drive out to.
Full site report back within a day. No card, no contract. Bring a target town and we'll show you the buildable lots and what fits, on the call.
Coverage expanding region by region · we'll confirm your towns on the call