1067 sq ft ADU Plan – Permit Ready

A 1067 sq ft single-story ADU with two bedrooms and a balanced public/private layout, designed for long-term tenant or family use. The layout configures 2 bedrooms and 2 baths within a clean, code-aware envelope. Suitable for tenants who want full-house features in an ADU footprint, or homeowners planning ahead for single-level living later in life. The plan includes an open porch.

Front 3D isometric rendering of a 1067 sq ft 2-bedroom 1-story ADU plan in California — Exterior rendering of the 1067 sq ft permit-ready ADU plan designed as a detached backyard cottage.

Plan A12-1067 Specifications

Base area	1,067 sq ft
Bedrooms	2 Bedrooms
Bathrooms	2 Bath
Stories	1-Story
Ridge height	13.5 ft
Ceiling height	8.5 ft
Roof slope	4:12
Open porch	104 sq ft

Code & Engineering

This 1067 sq ft single-story ADU plan with 2 bedrooms and 2 baths is delivered as a permit-ready architectural plan set developed for California parcels under the state's detached ADU regulations (Government Code §65852.2 and §65852.22).

The architectural plan set comprises the floor plan, exterior elevations, sections capturing the roof-line and interior heights, and dimensioned framing intent. The design follows the California Residential Code (CRC) and is engineered for structural detailing per ASCE 7 and the NDS.

Specific structural details — wall framing, sheathing, shear-wall locations, holdown selection, and connection design — are delivered through the optional Structural Set package and sized to the seismic site class and wind exposure of the specific parcel.

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 13.5 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.