ADUs by KHB Construction — Detached units, junior ADUs, and garage conversions — built like small houses, not accessory buildings.
Services

ADUs
ADU Builder & Contractor — Stanislaus County & the Central Valley

Detached units, junior ADUs, and garage conversions — built like small houses, not accessory buildings.
The work

California's ADU laws have made backyard units faster to permit than they've been in fifty years, and the Central Valley's lot sizes make them genuinely practical — space for parents, rental income, or a real office that isn't the spare bedroom.

We treat ADUs like small houses, not like sheds with plumbing: proper insulation, real windows, full kitchens and baths finished to primary-home standards. The design-build process matters here too — ADU budgets are dominated by site work and utility runs that only show up if someone walks the property and does the engineering before quoting you a fantasy number.

Materials
Glass mosaic
Glass mosaic
Vanity backsplash
Travertine
Travertine
Modular pattern
Penny-round
Penny-round
Mosaic backsplash
Honed black slab
Honed black slab
Veined, full height
Wood-look plank tile
Wood-look plank tile
Vertical stack
Copper mosaic
Copper mosaic
Dimensional metal
Investment
$500K – $750K+
ADU costs are dominated by site work — utility runs, foundations, and the gap between the existing house and the new unit.
Common questions

How much does an ADU cost in Stanislaus County?

A garage-conversion junior ADU typically runs $95,000–$180,000; a detached studio $220,000–$380,000; a detached 1–2 bedroom unit $350,000–$750,000+. Site work and utility runs are the biggest variables.

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Tell us about the project.

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