Tools
Planning Tools
Free tools to help you plan and budget your ADU project.
Cost Estimator
Estimate total ADU project costs by state, type, and size. Includes construction, permits, design fees, and financing options.
Permit Timeline Tracker
See typical permit-to-CO timelines, fee ranges, and the bottlenecks (geotech, sewer, fire sprinklers) that derail ADU projects across 30 metro markets.
Rental ROI Calculator
Run the math on renting your ADU. Cash flow, cap rate, breakeven, and 5/10/30-year ROI based on build cost, financing, and your local rent market.