ADU Hillside Geotechnical Investigation in Los Altos Hills, CA

Los Altos Hills is consistently named among the Bay Area's top estate-lot ADU markets, alongside Atherton, Woodside, and Hillsborough, with its own set of objective design standards for larger accessory units.

Nearly every Los Altos Hills parcel involves some degree of slope, and many have existing retaining structures, orchards, or septic systems that constrain where an ADU can go. AK Geotech's investigations address slope stability, foundation bearing capacity, and how the proposed structure interacts with existing site improvements, so the report holds up under the city's design review.

We also flag expansive or compressible soils where present, since foundation type selection in the hills often comes down to soil behavior as much as slope grade. The result is a report your architect and civil engineer can design against directly, rather than a generic soils letter that raises questions at plan check.

What's included

• Slope stability analysis

• Subsurface exploration and soil classification

• Foundation type and bearing capacity recommendations

• Seismic design parameters (current CBC)

• Formal geotechnical report for permit submittal

For a hillside ADU investigation in Los Altos Hills, contact AK Geotech to scope your project.