862 sq ft ADU Plan – Permit Ready

Delivered as a permit-ready architectural plan set, this 862 sq ft single-story ADU configures 1 bedroom and 1 bath for California parcels eligible under the state's detached-ADU statute.

Architectural deliverables include the floor plan, four-sided exterior elevations, building cross-sections, and dimensioned framing intent for the roof and floor systems. The design is developed against the current California Residential Code (CRC) with structural detailing intended to follow ASCE 7 and the NDS for wood members.

The Structural Set package is offered as a separate scope and includes lateral analysis, gravity load takedown, shear-wall design, and component-level connection details — all sized to the specific site's seismic and wind conditions rather than to a generic California average.

The foundation system is selected during a separate site-specific design scope. Slab-on-grade is the default for level, well-drained parcels; raised crawl-space on continuous stem walls is the choice on expansive-clay or high-moisture sites; pier-and-grade-beam systems handle hillside lots and soft-soil regions where the geotechnical report calls for deeper bearing.

The plan's 14.25 ft ridge height fits within California's standard 16-foot detached-ADU height limit on any standard parcel — no special transit or zoning eligibility required. Side and rear setbacks of 4 feet are respected, and the plan is designed for ministerial review under §65852.2. For sites with stricter local height overlays (HOAs, hillside districts), plan customization is available to lower the ridge further if needed.

Available optional services: PE-stamped structural calculations, plan customization for site-specific adaptations (roof slope, elevation, interior layout), custom foundation design sized to the geotechnical report, structural observation visits during framing and finish, and permit support tailored to jurisdiction-specific requirements.