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Design Review Board approves Seidel renovation and garage at Straitsview Drive
Summary
The Tiburon Design Review Board approved an application to add a garage and modest additions to a midcentury house on Straitsview Drive and granted associated variance findings after the applicant reduced massing and worked with neighbors.
The Tiburon Design Review Board on June 5 approved an application by Alex Seidel to add a new garage, reconfigure interior space and expand the main living area by about 100 square feet at a midcentury house on Straitsview Drive. The board also found in favor of the requested variances after the applicant shortened the foundation wall and reduced massing.
The applicant, Alex Seidel, introduced himself as both the property owner and architect for the project and told the board the changes were intended to “soften the massing of the project.” He described measures including narrowing the driveway, shortening the garage to slightly under 20 feet, increasing side and rear setbacks by roughly 5 feet, reducing overall floor area by about 118 square feet and lowering the garage height by about 5 feet to reduce visual bulk. Seidel said he had worked with neighbors and the Department of Public Works to locate a new planter area in front of the cul‑de‑sac where six olive trees are proposed for screening.
The board discussed whether elements related to an accessory dwelling unit (ADU) and a retaining/foundation wall were within the board’s review. The board and staff clarified that ADU design and most ADU setbacks were not part of the approval but questions about the visibility and height of the foundation wall and how it relates to the story poles remained open for board discussion. Seidel said the maximum exposed foundation wall would be about eight feet, with an average of four feet.
No members of the public spoke at the public hearing. Following board discussion, a board member moved to approve the draft resolution and the categorical CEQA exemption; the motion carried with all present voting in favor.
The board’s approval included the design refinements Seidel presented: reduced driveway width based on compact‑car turning studies, modified garage dimensions, increased setbacks and proposed site planting intended to screen the house from Straitsview Drive. Board members who spoke during the discussion praised the revisions for breaking up massing and adding screening.
The board closed the hearing after the motion and adopted the draft resolution as presented.
