Palo Alto ARB reviews Cubberley master plan concepts; staff to refine diagonal-based option and study phasing, parking and circulation

The Palo Alto Architectural Review Board on July 17 held a study session on conceptual layouts and circulation for the Cubberley master plan at 4000 Middlefield Road, providing detailed feedback that staff and the city's master planning consultant will use to refine a preferred concept for the third community meeting and a December city council presentation.

Why it matters: Cubberley is a 35-acre campus with complex ownership and uses; the master plan seeks to realign programming, parking, pedestrian and bike circulation, and long-term phasing. The site includes city-owned land and parcels leased from the Palo Alto Unified School District (PAUSD), and the city’s current purchases are contingent on a voter bond in November 2026.

What was presented City staff (Amanda Demmel, assistant director for community services, and Kristen O'Kane, director of community services) and Concordia (lead consultants Steven Bingler and Elizabeth Chen) presented three concepts—diagonal, grid and linear—each with three options showing (1) all-new construction with partially underground parking, (2) partial renovation of larger concrete buildings plus partially underground parking, and (3) all-new construction with above-ground structured parking. The team said all three concepts increase indoor and outdoor space and parking capacity compared with existing conditions.

Key technical points and program notes - Site size and ownership: the Cubberley campus totals about 35 acres; the city currently owns about 8 acres and leases the remainder (about 27 acres) from PAUSD. An MOU between PAUSD and City Council outlines a possible city purchase of seven additional acres contingent on a successful November 2026 bond measure. - Parking and circulation: consultants showed a partially submerged parking option along Middlefield plus a back-area at-grade lot with tennis courts proposed on the roof of that lot. The team said the deck/roof approach helps meet field parking demand while keeping some parking closer to active fields. Staff added a proposed "mobility hub" for drop-off/pick-up near the rear lot to reduce conflicts at peak times. - Pedestrian and bicycle priority: Concordia proposed a widened diagonal promenade linking Nelson Drive and Middlefield, with separated pedestrian-only paths and two-way bike lanes flanking an amenity zone; the design team said meeting comments favored separated paths for safety. - Renovation vs. new construction: the consultants said three larger concrete buildings (the pavilion, theater and Building I) were identified as candidates for renovation in option 2 because they have more substantial structural systems; consultants and staff emphasized that cost and condition surveys will drive final decisions and that renovation can sometimes be more or less expensive than new construction.

Board feedback and public comment Board members praised the promenade concept and asked detailed questions about phasing, drainage, trash collection, fire and emergency vehicle circulation, parking distribution (short-term vs. long-term), and how to preserve existing active tenants during construction. Board members also encouraged explicit phasing plans showing which uses and buildings would be built or renovated first to avoid disrupting current programs.

Two members of the public spoke. Elizabeth Alexis, a long-time neighbor and volunteer with the Friends of the Palo Alto Library, urged a highly visible, accessible drop-off for frequent donations and described the library group's operational needs. Eli Robles, representing NorCal Carpenters Local 405, urged that the city incorporate labor standards—prevailing wage, apprenticeship and safety—into the project as it advances.

Next steps and staff direction Staff told the board they will analyze input from this study session and other summer outreach (including the June 12 community meeting with roughly 130 attendees) and return a refined preferred concept at Community Meeting 3 on Sept. 17 and to City Council on Dec. 8 with a proposed master plan, cost estimates and phasing scenarios. Staff also noted the master plan will undergo CEQA review.

Quotes "The diagonal promenade is still the main design feature, which celebrates that bike and pedestrian route," Elizabeth Chen said when the refined concept was shown. "When we say sustainable design, it's not only like gas versus electrics, it's all other aspects related to the same issue, like material selections and water conservations," Vice Chair Chen said during the discussion on broader sustainability considerations.

Ending No vote was taken; the ARB's comments will be incorporated as staff and Concordia refine the preferred concept for further public review and formal council consideration later in 2025 and into 2026.