Glen Residence Demolition Project

The Glen Residence Demolition Project involves the complete removal of three deteriorating structures located at 10 and 20 Tehan Canyon Road in Pleasanton, California—a 3,300-square-foot single-family residence built in 1982, a 1,000-square-foot cottage and workshop from the 1920s, and a detached garage of similar vintage. Demolition is scheduled to begin in fall 2025, following the end of the nesting bird season, and is expected to last three to five weeks during standard daylight hours. Work will be conducted exclusively along Tehan Canyon Road, with a designated laydown area for equipment such as backhoes, bulldozers, and wheel loaders. All debris will be removed and disposed of at certified facilities, with materials recycled where possible in accordance with East Bay Regional Park District technical specifications and Bay Area Air Quality Management District regulations for dust control. The site lies within a canyon adjacent to Tehan Creek, surrounded by oak and bay trees, and has undergone thorough environmental and historical evaluations confirming no eligibility for state or national historic registers and no presence of archaeological resources. The project qualifies for CEQA categorical exemptions under Class I and Class 4, and no tree removal is permitted; only limited trimming for access is allowed. Strict operational protocols govern all activities, including mandatory biological monitoring by a qualified third-party biologist who must be present on-site during the first day of work and conduct weekly inspections, with authority to halt operations if protected species are disturbed. Pre-construction surveys for bats, nesting birds, and bumble bees are required, and no work may proceed if significant rain is forecasted or if more than 0.25 inches of rain has fallen, necessitating a 24-hour dry-out period. All vehicles on the private access road are limited to 10 miles per hour, and no equipment or activities are permitted within Tehan Creek or its immediate vicinity; exclusion and silt fencing must be installed to protect the waterway. Crews must receive biological awareness training, and no handling or relocation of protected wildlife may occur without written authorization from the California Department of Fish and Wildlife and the U.S. Fish and Wildlife Service. Environmental compliance, including filing of a Notice of Exemption with the Alameda County Clerk and submission of CDFW No Effect Determinations, is a contractual obligation. Payment for environmental fees is made to the Alameda County Clerk, but no contract value, pricing structure, or formal procurement terms are