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Detached ADU · San Jose · 720 sq ft

New detached ADU

A new building on your own back yard, sized and placed so that the only review it has to pass is the building counter.

Project type
Detached ADU
City
San Jose
Size
720 sq ft
Layout
1 bed, 1 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 new one bedroom unit at the back of an existing single family lot, designed to the state ADU rules so the city review is ministerial.

Before for new detached adu in San Jose
Beforethe existing condition
Proposed design for new detached adu in San Jose
Proposed designthe same lot, built

The drawings

Floor plan and elevation.

Floor plan for new detached adu in San Jose
Floor planproposed
Elevation for new detached adu in San Jose
Elevationproposed

3D view

The new work, on its own.

3D view for new detached adu in San Jose
3D viewrendering

The structural solution

What makes this project structural.

A new foundation, a full gravity and lateral design, and setbacks that decide the footprint before the plan does. Ministerial under state ADU law, which means the building counter is the only review that happens.

Everything is new, so nothing has to be proved by inspection: the load path is designed from the roof diaphragm down to the footings in one pass, and the shear walls are placed while the plan is still moving rather than squeezed in afterwards.

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

Permit scope

What is drawn and submitted.

  • Full permit set
  • Structural design and stamped calculations
  • Site plan and setback compliance
  • Title 24 energy documents

At a glance

  • Ministerial under state ADU law
  • New foundation and shell
  • Setbacks drive the footprint

Service

ADU Design

Detached and attached accessory dwelling units, drawn to the state rules so your city has to review them at the counter rather than at a hearing.

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