Santa Rosa design review board reviews concept for 7‑story, 309‑unit Humboldt apartment project

The Santa Rosa Design Review Board heard a concept design review for the 425 Humboldt Apartment Project, a proposed seven‑story mixed‑use building that would replace existing structures at 425, 631 and 635 5th Street and 431 Humboldt Street in downtown Santa Rosa.

The developer presented a plan for 309 residential units, including 19 live‑work units, ground‑floor commercial space and 194 parking spaces. "The project before you ... is a concept design review for ... the 425 Humboldt Apartment Project," staff said. Developer representatives described the proposal as a way to help the city reach its downtown housing goals and to activate frontages on Humboldt, 5th and Riley streets.

The project team said the site is zoned "core mixed use" and that the proposal has a floor‑area ratio of about 4.3 in an area where the FAR allowance is 8. The presentation said the development would take over multiple parcels and that the existing structures on the sites would be demolished. Staff advised the board that a historic‑resource evaluation prepared for one parcel concluded the building "does not qualify as a historic resource," and a planning staff member said that evaluation had been provided as late correspondence.

Why it matters: the applicant told the board the city is seeking large gains in downtown housing — the developer noted a 7,000‑unit target for the downtown station area — and the proposed building would add more than 300 units. Board members and nearby residents focused on potential neighborhood effects including building bulk and shadows, the adequacy of the proposed parking, whether the unit mix serves families, and how the project should address…