Demolition Contractor in Patrick Henry Drive, Santa Clara

Office and R&D Demolition in the Patrick Henry Drive Plan Area

The Patrick Henry Drive plan area sits west of Great America Parkway, north of Mission College Boulevard, with Calabazas Creek on its western edge. It was built out as a suburban office park: low and mid-rise buildings set back behind lawns, ringed by surface parking. In 2022 the city adopted a specific plan that rezones most of it for high-density housing, with parks and new streets threaded through.

The buildings here are mostly office and R&D construction from the late 20th century. Compared with the tilt-up warehouses elsewhere in north Santa Clara, they have more glass, more interior finishes, raised access floors in some spaces, rooftop mechanical equipment and elevators. Demolishing them is a sequence: interior strip-out, equipment removal, then the structure and the slab.

Strip-Out Before Structural Demolition

We start inside. Ceiling grid, carpet, raised floors, cabling, glass partitions and furniture systems come out first and are sorted for recycling, since mixing them into the structural debris makes all of it harder to recycle. Glass curtain walls and windows are removed in a controlled way before the frame comes down.

Rooftop units, chillers and elevator equipment are removed next. Refrigerants are recovered by a certified technician before units are cut or hauled. Some of this equipment has resale value, which can offset part of the demolition cost.

Asbestos Surveys, Permits and SVP Service Removal

Office buildings from before the 1980s may contain asbestos in fireproofing, floor tile, mastic and drywall compound; even newer ones get surveyed. Any asbestos is abated by a certified contractor first, then the BAAQMD notification is filed and the City of Santa Clara issues the demolition permit.

Office campuses here draw a lot of power, and Silicon Valley Power usually owns the transformers on site. Removing that equipment is scheduled with SVP well ahead of demolition. PG&E handles gas. Fire service lines, domestic water and sewer laterals are cut and capped as the city requires.

Parking Lots, Creek Edges and the Hetch Hetchy Corridor

Surface parking takes up much of each parcel, so asphalt removal and recycling is a big part of the work. Asphalt, base rock and concrete are separated so each can go to the right recycler, or be crushed for reuse under the new streets and buildings when the project allows.

The plan area is bordered by Calabazas Creek on one side and the Hetch Hetchy water right-of-way on the north. Work near the creek needs erosion control and may have setbacks. The water corridor carries large pipelines, and heavy equipment crossing or working near it usually needs approval from the agency that owns it. We confirm those limits before we plan haul routes.

• Asphalt and base rock removal
• Erosion control along Calabazas Creek
• Haul routes clear of the water corridor
• On-site crushing when approved