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Mixed-use project debuts at 9201 Delridge Way SW in West Seattle

by Adina Eaton | Aug 6, 2025

The Keystone Apartments, which replaced an automobile repair shop, consists of a five-story building featuring 74 studio, one-, and two-bedroom apartments above just over 4,200 square feet of ground-floor commercial space. The site is located near Westwood Village,...

VIDEO: Grand-opening party for new South Delridge building The Keystone

by Adina Eaton | Aug 1, 2025

On the South Delridge site where an auto shop once stood, and where a self-storage building was once proposed, The Keystone is about to open, with 74 apartments and ground-floor commercial space. Development partners STS Construction Services (WSB sponsor) and Housing...

Impact Awards: Multifamily development of the year for Los Angeles

by Adina Eaton | Mar 26, 2025

A Los Angeles supportive housing development demonstrates how private capital and public partnerships can streamline how cities approach the development of housing for the homeless, according to its...

Construction underway for 88 apartments at 4448 California Ave SW in West Seattle

by Adina Eaton | Mar 11, 2025

The seven-story development is on track to open in 2026 Housing Diversity Corporation and STS Construction Services co-hosted a groundbreaking ceremony last week for an eight-story mixed-use development near the upcoming California Ave SW Light Rail Station in West...

Ground broken on 88 West Seattle units

by Adina Eaton | Mar 10, 2025

(Paywall) Housing Diversity Corporation announced the onset of construction last Friday at 4448 California Ave. S.W. , a few steps north of Alaska Junction.
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About Housing Diversity

Housing Diversity Corporation (HDC) is a leading impact investment fund manager and real estate developer pioneering innovative housing solutions. We create high-quality housing across the affordability spectrum (0-120% AMI) through multiple approaches, with a growing focus on tax-exempt bond structures and municipal master leasing partnerships. Our strategic collaborations with Enterprise Community Partners, United Way of Greater Los Angeles, Amazon Housing Equity Fund, and LAHSA have produced nearly 3,000 units, including 374 homes for people experiencing homelessness. Founded by Brad Padden, HDC strategically locates developments near transit, employment, and amenities (94 average Walk Score), creating communities that foster economic diversity and social cohesion. With projects in Seattle and Los Angeles, we’re adding a new leg to the stool of affordability—creating essential housing for residents, municipalities, employers, and communities.

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Housing Diversity Corporation
600 1st Ave Suite 330
PMB 58151
Seattle, WA 98104

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Housing Diversity Corporation
500 Broadway
Seattle, WA 98122

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