New Seattle supportive housing now costs about $500,000 per apartment

Seattle's four new supportive housing buildings planned in 2023-2025 have a median estimated cost of $503,128 per apartment, about what a typical new apartment costs to build ($490,000) and about 1.5 times the $330,888 median King County paid per unit to buy and repair existing Seattle buildings. Plans from 2021-2022 were about $381,000 to $400,000.

building	cost_per_apartment_usd	period	plan_year	sponsor	total_cost_usd	units
DESC Woodland (2023)	524476	Planned 2023-2025	2023	DESC	49825258	95
Plymouth Whittier (2025)	511719	Planned 2023-2025	2025	Plymouth Housing	46054745	90
DESC Belmont (2024)	494537	Planned 2023-2025	2024	DESC	59344428	120
DESC Lake City (2023)	401611	Planned 2023-2025	2023	DESC	48193297	120
DESC 15th Avenue (2022)	400410	Planned 2021-2022	2022	DESC	42043088	105
DESC Greenlake (2021)	380714	Planned 2021-2022	2021	DESC	47208490	124

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Typical new apartment (2023 est.): A draft consultant memo for Portland's housing bureau put a generic six-story, 143-unit apartment building in Seattle at nearly $490,000 per unit, with about 700 square feet per unit counting all its space.
Existing buildings bought (median): Purchase plus repairs to date per unit, median of the six Seattle buildings King County bought for its Health Through Housing program, through 2024.