Free interactive pencil test
Two units, one lot. Adjust costs and rents to see whether a duplex clears your yield or margin target.
Duplexes are the entry point for missing-middle housing. A quick pencil check beats rebuilding the same spreadsheet for every lot.
When a scenario looks promising, take the next step on a real address — zoning, lot dimensions, setbacks, and height limits are free tools on Bucky.
Market rent $2,600/mo · 2 units
All-in $1,266,640 · $633,320/unit
Cost build-up
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