Commission continues contested second‑driveway and variance request at 800 Corte Madera Avenue to May 27

The Corte Madera Planning Commission on April 8 continued a decision on a design review and variance application (PL24‑0048 / PL25‑0016) for a proposed second driveway at 800 Corte Madera Avenue to the commission's May 27 meeting after extended public comment and commissioner questions.

Martha (staff planner) told commissioners the application proposes a northern driveway intended to enhance emergency egress and fire‑department access and would include retaining walls up to about 12 feet 5 inches, grading, drainage, lighting and a gated entry. "The primary purpose of the proposed driveway is to enhance emergency egress and to improve access for the fire department," Martha said.

Staff reported the 11.38‑acre property is zoned R‑1‑C (open residential) and sits within the hillside land capacity overlay and the Wildland‑Urban Interface. The site is steep (average slope ~52 percent) and adjacent to open space. The project would add about 2,300 square feet of impervious surface (increasing lot coverage to roughly 4 percent) because areas of fill exceeding 3 feet count toward lot coverage under the town's design review rules. The grading plan shows approximately 370 cubic yards of cut and 875 cubic yards of fill; because total earthwork exceeds 1,000 cubic yards, a town‑council approval of the grading permit is required before permits are issued.

Staff and the applicant said the driveway alignment was chosen to avoid the greatest number of redwoods and oaks. The plan proposes removal of 47 trees and replanting 32, and staff said roughly half of the trees slated for removal were assessed as in poor health; more than 30 designated trees are California bay laurels. The applicant said replacement plantings will include redwoods, toyons, maples, hazelnut and California buckeye and that the species, sizes and locations were reviewed by the town consultant arborist and the fire department.

Fire Chief Reuben Martin testified the driveway was designed to meet the department's emergency‑access specifications and that added access could improve response. "We would have an automatic response of five of the closest resources," Chief Martin said, and in a high red‑flag event he said a larger, multi‑agency response would be dispatched. He described the proposed driveway as providing a "fuel break" and a secondary ingress/egress option that could improve firefighter access and, potentially, reduce risk to neighboring houses.

Public comment at the hearing ran long. More than a dozen nearby residents objected, citing concerns about large‑scale tree loss and the removal of a wooded public right‑of‑way area used for walking, heavy construction traffic and hundreds of dump‑truck trips, erosion and stormwater impacts, the visual effect of tall retaining walls, road damage to privately maintained pavement, and the long‑term risk of the access becoming a primary driveway or serving commercial traffic. Multiple speakers urged the applicant and town to hold additional on‑site meetings, flag proposed retaining‑wall locations, provide a more detailed construction‑management plan and increase replacement tree sizes and quantities.

Applicant representatives said they met with neighbors in February and held a community meeting in December that was attended by staff, the fire chief, the applicant team and about 15 neighbors. Project consultant Sean Kennings said the alignment was refined after on‑site review with the fire chief and public works to reduce tree impacts and meet emergency‑access design standards. The applicant team said the gravel segment at the lower portion of the proposed driveway was intended to protect redwood roots and that the design can support a heavy apparatus if compacted over geogrid; they also said the rumble strip indicated on the plan was temporary for construction staging.

Commissioners and staff discussed a range of uncertainties: how to monitor and enforce a limit on daily trips if the approval restricted driveway use to occupants only; how to limit construction traffic on narrow, sometimes privately maintained stretches of Alta Terrace and Alta Way; and whether additional mitigation (larger replacement tree sizes, staged story‑pole visualization of retaining walls, or added retaining walls near the hairpin) should be required. Commissioner Kenny asked whether the gate could be opened by fire services during an evacuation; staff and the fire chief said there are key‑override options and that the town could require access protocols for emergency use.

After public comment and deliberation, the commission voted to continue the item to the May 27 agenda to allow staff and the applicant to respond in writing to the issues raised and to permit additional outreach. The motion to continue passed unanimously on roll call.