Durant Basement Foundation
Berkeley, CA
- Project Type
- Foundation & Seismic Retrofit
- Project Year
- 2023–2024
- Excavation
- ≈2,000 yd³
- Reinforcing Steel
- 30–40 tons
- Result
- 20 student units

One of the biggest accomplishments in New Edge Concrete's history — a roughly $1 million foundation and seismic project at the corner of College and Durant, one block from the UC Berkeley campus. Working for a repeat developer client, we transformed the basement and garage of an existing 8,000 sq ft building into modern student living space: excavating about 2,000 cubic yards of soil beneath the shored structure, installing an estimated 30–40 tons of reinforcing steel, and completing extensive seismic upgrades to strengthen the building against earthquakes, plus new sidewalk improvements out front. Six to eight months of intense coordination with multiple subcontractors kept the demanding schedule on track. Today the building holds 20 premium student housing units just steps from UC Berkeley — proof of our ability to deliver large, complex foundation and structural concrete work.
Scope of work
- ≈2,000 yd³ excavation beneath an existing building
- 30–40 tons of reinforcing steel
- Extensive seismic strengthening upgrades
- New basement foundation & structural slab
- New sidewalk improvements
The finished result
During the build
Excavation, forming, reinforcement, and the pour — the work behind the finish.