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Room additions in Rainier Beach

Rainier Beach is South's craftsman submarket. Rainier Beach has the largest share of single-family pre-1960 housing in south Seattle — affordable relative to north Seattle but accelerating in price.

Rainier Beach cost range
$185K$625K
typical mid-complexity
Permit authority
SDCI Type I / II + Rainier Beach Urban Village
8-13 weeks (SDCI Type I)
Typical home size
1,400-2,600 sqft; lots 0.1-0.25 acres
Borough · ZIP
South
98118
Rainier Beach Residential Urban VillageDADU + AADU by-rightTOD around Rainier Beach Light Rail (2009)Seattle Energy Code performance-path

What a room additions project looks like here

Rainier Beach has the largest share of single-family pre-1960 housing in south Seattle — affordable relative to north Seattle but accelerating in price.

Because it's a Residential Urban Village with Light Rail access, TOD-driven upzoning is active.

The neighborhood's Rainier Beach Park + Lake Washington access is a distinguishing amenity.

Rear-yard additions, second-story pop-ups, dormer additions — SDCI residential; ECA slope + tree review on green parcels. In Rainier Beach specifically, craftsman stock means room additions scope is shaped by the neighborhood's dominant construction typology. Baily's Seattle scoping flow factors rainier beach residential urban village and dadu + aadu by-right into the estimate before a contractor is involved.

Start your Rainier Beach scope — Baily asks the right questions.

Pre-seeded for room additions in Rainier Beach. Mention your 1,400-2,600 sqft, your timeline, and any known constraints — Baily factors the sdci type i / ii + rainier beach urban village review queue into the scope.

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Origin

Who is Baily?

Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.

He wasn’t the first to see them. Edmond Halley saw them in 1715 and barely noticed. Baily’s contribution was clarity — describing exactly what was happening, in plain language, so vividly that the whole field of astronomy paid attention. The phenomenon is still called Baily’s beads.

That’s what we wanted our AI to do. Every inbound call and text has signal in it — a homeowner’s real question, a timeline, a budget, a hesitation that means “yes but.” Baily listens to every one, 24/7, and finds the beads of light.

Baily was a businessman before he was a scientist. That’s our vibe too.

Questions LA homeowners actually ask

Nearest neighborhoods

Same service, adjacent Seattle submarkets.

Other projects we scope in Rainier Beach

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