What it considers
The whole early site picture.
Property lines, setbacks, open area, passageways, sewer or septic, utility routes, overhead power, easements, slope, trees, drainage and critical-area flags.
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Could an ADU or DADU fit your property?
Answer the early site questions that influence attached ADUs & DADUs. Get a private, immediate report—no account, payment or sales gate.
ADUs & DADUs Property Fit Check
Start with the property, not a floor plan.
This tool helps a homeowner collect the information used in an early feasibility study. It identifies promising conditions, possible conflicts and missing research without pretending to replace a survey, code review or site professional.
What it protects
Your time and privacy.
No registration, payment or contact information is required. Questionnaire answers stay in the browser and are not submitted to Ideal. An address search goes directly from the browser to public GIS services for King and Snohomish counties, as applicable.
What comes later
Parcel-specific verification.
Current jurisdiction rules, survey information, title, utilities, design, engineering, environmental conditions and permits control what can actually be built.