🏡 Lot Mapper Studio

Auto-detect internal lots from a subdivision JPG, edit polygons, map CSV data, and export embeddable HTML.

1) Upload Map

Subdivision JPG / PNG

Tip: Best results come from top-view maps with dark roads and visible lot divider lines.

Road Darkness Threshold: 65 Lot Divider Threshold: 125 Barrier Thickness: 2 Minimum Lot Area: 700 Polygon Simplification: 8

Detection logic isolates roads + parcel divider lines, then extracts enclosed internal lot regions.

Click polygon to select

Double-click to finish drawing

Delete removes selected lot

Auto-detection is never 100% perfect. This tool is designed for auto-detect + human cleanup.

CSV Columns

Block, Lot, Lot Sq Ft, Address, City, State, Plan, Type, Living Sq Ft, Status, Home?, Garage, Bed, Bath, MLS, Price

Drag lot records from the right panel and drop them onto polygons.

Exported HTML includes the image, polygons, hover/click popup, and lot data.

Ready. Upload a lot map image and click Auto Detect Lots.

Drop CSV Record onto Lot