Look What’s Coming to Arrowhead Grove
For more than 80 years, the community formerly known as Waterman Gardens has provided affordable housing to generations of San Bernardino families. Originally developed in 1943 with 252 public housing units, the community has long been an important part of the neighborhood’s history. In 2013, the Housing Authority of the County of San Bernardino (HACSB) partnered with National Community Renaissance (National CORE) to begin a comprehensive redevelopment effort, transforming the aging property into a modern residential community with expanded housing opportunities and amenities.
Three phases of redevelopment have been completed, delivering 283 new affordable homes and 36 market-rate homes. Building on this progress, Phase IV is now under construction and will introduce 92 additional affordable multifamily homes, ranging from one to three bedrooms, for low-income households. Groundbreaking took place in November 2025, with construction anticipated to be completed in late 2027. Future phases will continue the revitalization with additional affordable housing and community-serving amenities.
Alder Square Will Bring New Affordable Homes

Artist rendering of Alder Square, the fourth phase of redevelopment at Arrowhead Grove.

Groundbreaking ceremonies for Alder Square. Photo by Davis Barber/Video Services, for HACSB. November 4, 2025.
In continued partnership with National CORE, HACSB is bringing 92 additional units of affordable multifamily housing to the community through the next phase of redevelopment. Units from one- to three-bedrooms will be available to low-income households. Groundbreaking took place on November 4, 2025, and construction is expected to be completed in late 2027.
Community Resource Center
At HACSB, we believe stable housing is the foundation for opportunity, but housing alone is not enough. Through our “housing AND” philosophy, we work alongside community partners to connect individuals and families with the resources, services, and opportunities they need to thrive. A central component of this vision is the Arrowhead Grove Community Resource Center, which will serve both Arrowhead Grove residents and surrounding neighborhoods by bringing essential services and community resources together in one accessible location.
The project also received generous support from Congressman Pete Aguilar, who has secured Community Project Funding to help finance the development of the Community Resource Center. Potential groundbreaking is projected for mid-2027.
