Someone may be buying your block. The roll shows it.

Land assembly — a developer quietly buying adjacent lots until a site is big enough to build on — is how redevelopment actually starts, and it is invisible on listing sites. It is not invisible in the county assessment roll. Every parcel's owner is public, and when the same LLC shows up on four, seven, eleven neighbouring folios, that block has a buyer with a plan.

What it looks like in the data

In Fort Lauderdale's Flagler Village, the roll shows four separate entities each holding seven to eleven parcels on the same blocks — tens of millions of dollars of accumulated land. In West Palm Beach, one LLC bought three adjacent lots inside five years. None of this required a press release; all of it is sitting in public records.

Why it changes your number

If you own a lot inside someone's assembly footprint, your parcel is not worth "market" — it is worth what completing the site is worth to that buyer. Assemblers need contiguity; the last pieces command the premium. Sellers who price off ordinary comparables in that situation leave the strategic value on the table. And buyers bidding into an active assembly should know they are bidding against someone with a reason to pay up.

The signals that matter

• Common ownership of three or more nearby parcels — especially an entity name (LLC, Corp, Partners) rather than a person.
• Recent purchases among those holdings. A family that has owned four lots since the 1980s is not an assembly; a company that bought three since 2021 is.
• Construction momentum around the block — parcels the appraiser has re-rated after renovation, and new construction value on the roll. Money already committed is the leading indicator.

Check your block

Our report scans the parcels around any address for common owners, grades how active the accumulation looks, and shows the renovation wave on the block — then prices what a combined site would support. On the map, you can select adjacent lots yourself and see the combined economics.