How It Works
We make it easy to understand if you can build an ADU on your property. Here's how our eligibility engine works.
Enter Your Address
Start by typing your property address into our search bar. We use Google's geocoding to pinpoint your exact location and identify your municipality.
- ✓Supports any US address format
- ✓Auto-complete helps you find the right address
- ✓We identify your city, state, and approximate zoning district
We Analyze Zoning Rules
Our engine evaluates multiple layers of ADU regulations that apply to your property, from state-level baseline rules to municipal-specific overlays.
- ✓State baseline rules (e.g., MA Affordable Homes Act)
- ✓Municipal zoning ordinance overlays
- ✓Zoning district-specific rules
- ✓Transit proximity for parking exemptions
Review Your Report
Get a detailed eligibility report covering all ADU types available to you, with specific constraints for each.
- ✓Detached, attached, and conversion ADU analysis
- ✓Size limits, height restrictions, and setbacks
- ✓Parking requirements and transit exemptions
- ✓Approval type (by-right vs. special permit)
- ✓Owner occupancy and rental allowances
What We Check
Max square footage
Max % of principal dwelling
Height limits
Story limits
Front setback
Side setback
Rear setback
Lot size requirements
Lot coverage limits
Parking requirements
Transit exemptions
Approval type
Owner occupancy
Rental permissions
Short-term rental rules
Exterior matching
Separate entrance
Bedroom limits
Ready to check your property?
Enter your address below to get your free ADU eligibility report.