BEBuild Eastside

Free property feasibility study

What can you build on this lot?

Explore a home, addition, or ADU. Start with an Eastside or Seattle address.

  • Free study
  • No account
  • Delivered by email
Look inside a real study
Step 1 of 4

Start with the property

Use a parcel ID instead

Most studies arrive by email in about five minutes. Public-source delays can take longer.

What you receive

Your lot, made clearer.

A property study brings the maps, local rules, and next questions into one place.

Setback map from the public Clyde Hill sample study showing the estimated area inside base setbacks
Inside the base setbacksKing County imagery and map data. Overlays by Build Eastside. Approximate mapped boundaries, not surveyed measurements.

Where it may fit

See the base setbacks and property maps. Learn which parts of the lot need a closer look.

How much may fit

Check zoning, floor-area rules, and lot coverage. Explore the limits for a home, addition, or ADU.

What to check next

Find mapped slopes, sensitive areas, and tree rules. See what is unknown and how to confirm it.

Public records are a starting point. Important details may need a survey or city confirmation.

See a real sample report

Around here, every lot is different

Local questions.
Local rules.

Built for Seattle and Eastside property decisions.

  • Bellevue
  • Kirkland
  • Redmond
  • Sammamish
  • Seattle
See supported areas and the map

Beaux Arts Village · Bellevue · Bothell · Clyde Hill · Hunts Point · Issaquah · Kirkland · Medina · Mercer Island · Newcastle · Redmond · Sammamish · Woodinville · Yarrow Point · Seattle

Before you start

Good questions.
Clear answers.

Is this a city approval or professional study?

No. This is an early review of public records. It does not replace a survey, professional advice, or city approval.

Can I use it before buying a property?

Yes. It can flag likely limits and questions to check before you buy. It does not replace an inspection or professional review.

What does an ADU study compare?

We compare one new two-story detached ADU with an attached addition. The estimate uses your existing buildings and local rules. Trees, utilities, and a survey can change the final size or placement.

What if records are missing?

The report flags unknowns and tells you how to check them. You can review and correct property facts before an ADU calculation starts.

What about local housing and ADU rules?

Washington's HB 1110 expanded middle-housing options. ADUs have separate state and local rules. Your city's current code and property conditions still matter.

Bellevue's middle-housing guidance ↗Washington's ADU guidance ↗Read the local ADU guide →

Your property. Your possibilities.

Let’s take a closer look.

Start with an address. The first pass is free.

Start my feasibility study