600 sq ftView details California cottage
Cottage 600
A true one-bedroom home with clear separation between living, sleeping, and service spaces.
11 bath20 × 30
Best for: Long-term rental or independent family housing
Configure this modelProperty-specific ADU planning
600 sq ft ADU
600 Sq Ft ADU Model — 1 Bedroom Cottage
The Cottage 600 is ADU.zone’s defined 600 sq ft planning footprint: a one-bedroom concept intended as a practical starting point for long-term rental or independent family housing.
Compare real planning concepts
Start with a defined footprint, then adapt it to the property.
These concepts are planning references, not permit-ready plans. Final architecture and engineering are developed after the site, local rules, utilities, access, and owner priorities are understood.
600 sq ftView details Planning snapshot
Cottage 600: the first concept to test.
Area
600 sq ft
Footprint
20 × 30 ft
Bedrooms
1
Bathrooms
1
Stories
1
Preliminary baseline range
$195,000–$240,000
Current ADU.zone baseline for this model with standard starting selections. This is an early planning range only and excludes property-specific verification.
Site requirements
A model only works when the site works.
Buildable area
Setbacks, easements, existing structures, lot coverage, and required separation can limit the usable footprint.
Access
Construction access, staging, excavation, material delivery, and fire-department requirements can affect design and cost.
Utilities
Electrical, sewer, water, gas removal or electrification, and service upgrades need property-specific review.
Local process
Planning and building requirements, submittal standards, fees, and review times vary by jurisdiction and project conditions.
Property qualification
Do not choose the final ADU from a catalog alone.
Start with the address, test the closest planning footprint, and identify the unknowns before committing to design scope.