Add the room instead of buying it.
A primary suite, a second story, or an in-law suite — built onto the house you love, without trading your rate. Start with a free report on what your lot has room for.
The house is right. The room isn't.
Two kids sharing one room
You bought for the school and the street. A bedroom off the back fixes the floor plan, not the rest.
Their own bath and door, under one roof
An in-law suite with its own entrance and kitchen is an attached ADU, and the ADU rules apply.
The call that doesn't happen at the kitchen table
A 200-to-400 sq ft bump-out is the smallest project we study, and often the one most worth doing.
The room the house was always missing
The classic Washington addition — and the one where lot coverage most often decides the answer.
Different rules from a backyard home, and the report says so.
An addition follows the rules for the house itself, not the ADU rules. The report reads your parcel against them:
From public records
Lot coverage left, setbacks and height limit for your zone, whether a second story clears it, stormwater and tree rules, any flood, wetland, slope or soil flags.
Only on site
Whether the foundation and framing can carry a second floor, what's inside the wall you'd open, where utilities run, whether your HOA has a say.
| Type | Typical size | What decides it |
|---|---|---|
| Ground-floor bump-out | 200–500 sq ft | Remaining lot coverage and impervious surface; side and rear setbacks |
| Primary suite | 300–600 sq ft | Coverage, setbacks, and where plumbing can run |
| Second story | Over the existing footprint | Height limit, and whether the foundation and framing can carry it |
| In-law suite | Own entrance, kitchen and bath | An attached ADU — your city's ADU rules apply |
A planning range in the report. A fixed price only from a proposal.
Your report carries a planning range for the type of addition that fits, with every rate sourced and dated. A fixed price comes only after a site visit and a design; permits, utility fees and sales tax are separate.
Construction by United Signature, WA contractor reg. UNITESE790Q3.
How much of the lot may be built on, and how much already is.
Foundation, framing, what's in the wall, where the pipes run.
In the report, for the type that fits. Never a promise.
Questions people ask about additions
Will an addition match the house?
That's the architect's job. The report answers whether there's room for one at all.
How long will we live in a construction zone?
It depends on the type, and the proposal sets the schedule. Most families stay for a ground-floor addition and move out for a second story.
Does a second story need a new foundation?
Sometimes. Nobody can tell from a desk; the site visit answers it.
Find out what your lot has room for.
One page, two minutes. Your report within the hour.