Carving a block into buildable lots is one of the most tedious parts of a concept plan — measuring frontage, keeping every lot above the minimum area, squaring rear lines to the block, and renumbering everything each time a road moves. The new Subdivision tool does it for you. Trace a boundary, and it fills with numbered lots that front the surrounding roads, each labeled live with its square footage and acreage.
It comes in two flavors that share the same underlying engine: an automatic mode that generates an entire plat from a couple of requirements, and a manual mode that lets you place, slide, and delete every lot line by hand.
Automatic subdivision
Draw the outline of a block, set a minimum lot area and minimum frontage, and the tool lays out lots along every road that touches the boundary. Lot widths are sized so each lot clears its minimum area even at its shallowest point, rear lines run to the middle of the block, and a Lot Shape slider trades between squarer, larger lots and narrower, deeper ones so you can dial the yield up or down.
Everything is generative: nudge a road, redraw an edge, or drop in an exclusion zone and the whole layout reflows and renumbers instantly. Nothing is baked in, so there's no cleanup after an edit.
Manual subdivision
When you want to draw the lot lines yourself, Manual Subdivision gives you a click-to-split canvas. Click inside a block and it previews a lot line running perpendicular to the nearest road — drag before you release to spin it to any angle — then click to drop it. Each split shows the resulting piece areas as you go, so you're never guessing whether a lot clears its minimum.
Splits stay editable after you place them. Hover a line and it highlights with a × badge: drag the body to slide the lot line back and forth, or click the × to remove it. Because splits are anchored to the block rather than to fixed coordinates, they automatically extend and shrink as you move, add, or delete the roads around them.
Lock it down
Once a layout looks right, hit Lock to freeze it. A locked subdivision stops reflowing, so you can draw roads, buildings, and parking right on top of it without the lots re-splitting underneath you — the plat stays exactly as you left it while you keep detailing the site.
Exclusion zones
Wetlands, floodplains, easements, and existing structures rarely respect lot lines. Drop an Exclusion Zone over the block and both subdivision modes carve around it — the hatched no-build area is subtracted from every lot it touches, and each lot's reported area updates to match the buildable land it actually contains.
- Automatic mode fills a block with numbered lots from a minimum area and frontage
- The Lot Shape slider tunes yield between squarer and narrower, deeper lots
- Manual mode places perpendicular lot lines on click — drag to set a custom angle
- Slide any split to reposition it, or click its × badge to delete it
- Splits follow the roads automatically as you move, add, or remove them
- Lock a finished plat so it won't reflow while you draw on top of it
- Exclusion zones carve out no-build land and debit each lot's area accordingly
- Every lot is labeled live with square footage and acreage
Whether you want a full plat generated in seconds or precise control over every property line, Subdivision takes the block from raw boundary to numbered, buildable lots — and keeps them accurate as the rest of the site changes around them.
Subdivision is a paid feature, available on the Starter and Pro plans alongside 3D view, industrial buildings, parking fill, and the custom road builder.