Foundations

Danville ADU Foundation

Danville, CA

Project Type
ADU Foundation
Project Year
2024
ADU Size
490 sq ft
Layout
1 bed / 1 bath
Foundation
Drilled piers, raised stem walls
The finished 490 sq ft ADU with its slanted roofline and covered entry, tucked beside the main house — Danville ADU Foundation, Danville, CA
Overview

A hillside ADU foundation in Danville, built by New Edge Concrete in 2024 with general contractor Burton Builders. The site demanded serious engineering — complex drilled piers, intricate rebar, precision formwork, and rigorous special inspections — to carry a raised foundation into the slope beside the main house. Burton Builders framed and finished the 490-square-foot one-bed, one-bath in-law cottage on top.

General ContractorBurton Builders

Scope of work

  • Excavation & grading
  • Complex drilled piers
  • Rebar & precision formwork
  • Stem-wall pour & finish
  • Special inspections

The finished result

During the build

Excavation, forming, reinforcement, and the pour — the work behind the finish.