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Garage conversion · Oakland · 440 sq ft

Detached garage to habitable room

Half the garages in Oakland are already being used as rooms. This is what it takes to make one of them legal.

Project type
Garage conversion
City
Oakland
Size
440 sq ft
Layout
Room and bath

An example project. The scope and the structural condition are real for this project type. The size and the city are typical rather than drawn from a named client.

Before and after

A detached garage made into a permitted habitable room with a bathroom, inside the walls that are already standing.

Before for detached garage to habitable room in Oakland
Beforethe existing condition
Proposed design for detached garage to habitable room in Oakland
Proposed designthe same lot, built

The drawings

Floor plan and elevation.

Floor plan for detached garage to habitable room in Oakland
Floor planproposed
Elevation for detached garage to habitable room in Oakland
Elevationproposed

3D view

The new work, on its own.

3D view for detached garage to habitable room in Oakland
3D viewrendering

The structural solution

What makes this project structural.

The slab, the plate height and the roof framing all predate the code the finished room has to meet. Legalising it means proving the existing structure, not assuming it, and the door opening still has to be infilled and braced.

The survey comes first: what is actually there, measured, before anything is drawn. Where the existing framing does not make the number, it is sistered or replaced and that is shown on the drawings rather than left for the inspector to discover.

Schematic of the structural condition
Schematicblack existing, gold new, red the condition

Permit scope

What is drawn and submitted.

  • Permit set
  • Structural design and stamped calculations
  • Existing conditions survey
  • Title 24 energy documents

At a glance

  • Existing shell retained
  • New bathroom
  • Existing structure proved

Service

Garage Conversions

Attached and detached garages turned into permitted living space inside the shell that is already standing.

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