The Corte Madera Planning Commission convened on May 27, 2025, to discuss a proposed project that includes the construction of a new driveway at 800 Corte Madera Avenue. This project aims to enhance access to the existing single-family residence while also addressing various community concerns.
The proposed driveway, located in the northern portion of the property, would increase the existing lot coverage from approximately 3.5% to 4%. As the property is situated in the R1C zoning district, any increase in lot coverage necessitates a design review approval. The project also involves the construction of retaining walls, grading, drainage improvements, and lighting, alongside the removal of 47 trees, including 22 permit-sized trees, which are defined as having a circumference of 50 inches or more at breast height. Notably, 30 of the trees slated for removal are bay laurel trees, recognized as fire-prone under the town's tree ordinance. However, the project includes a commitment to plant 32 replacement trees on-site.
The property, which spans just under 11.5 acres, is adjacent to the Alto Bowl Preserve and is characterized by its irregular shape. The existing residence, built in the early 2000s, is approximately 6,400 square feet, and the new driveway will not facilitate any additional development beyond what is permitted by municipal code.
During a public hearing held on April 8, 2025, community members expressed significant concerns regarding the project. Issues raised included potential increases in traffic on the narrow Alta Terrace, the environmental impact of tree removal, erosion risks, and the adequacy of emergency access. While one individual voiced support for the project, the majority of comments reflected apprehension about the necessity of the new driveway and its implications for local traffic patterns.
In response to these concerns, town staff determined that the anticipated increase in traffic would be minimal if access to the new driveway is restricted to residents of 800 Corte Madera Avenue. This limitation is included as a condition of approval in the draft resolution. The applicant has also revised the construction management plan to provide clearer timelines and protocols for the construction process, which is expected to last approximately 36 weeks. The updated plan outlines designated parking for construction workers and specifies that all stormwater will be treated on-site before entering the town's stormwater system.
As the project moves forward, the Planning Commission's discussions highlight the ongoing balancing act between development needs and community concerns in Corte Madera. The next steps will involve further review and potential adjustments based on community feedback and regulatory requirements.