City program

Pre-Approved ADU Plans in Los Altos, California

Browse official and accepted pre-approved ADU plans for Los Altos, California. Compare plan size, bedrooms, providers, approval status, official source links, permit requirements, and fees.

Program status: source-backed listings Last checked Aug 12, 2026

Program Overview

This Los Altos page summarizes source-backed pre-approved ADU plan listings for Los Altos, California, using official records tied to City of Los Altos. The current public dataset lists 6 accepted plans from 3 providers; provider names include Adore Homes, City of Los Altos Permit-Ready ADU Program, and Wellmade. The accepted listings are tied to the local Los Altos program. Plan records cover 330 to 1,190 sq ft and 1 bedroom to 2 bedrooms where those fields were listed by the source.

Permit and fee context is kept separate from plan acceptance. The public dataset includes 2 permit requirement records and 2 fee records for Los Altos. Permit requirement records include No structural-plan modifications and Site-specific submission. Fee records include City permit-ready structural plans and Private plan purchase. When a source did not publish a value, the page keeps that field as Not listed in source instead of filling a blank.

Use these listings as a starting point for matching a plan to a property. Source links, checked dates, acceptance notes, and provider records are shown so you can verify whether a plan remains accepted locally, what site-specific review remains, and whether local fees, plan licensing, or provider terms apply. A listing in this directory does not guarantee permit approval for a specific parcel.

Summary

Location
Los Altos, Santa Clara County, California, USA
Accepted plans
6 accepted plans
Providers
3 providers
Origin programs
1 program
Plan size range
330 to 1,190 sq ft
Permit sources
1 source

How to use this page

  1. Pick a plan size and bedroom count.
  2. Check whether the plan originated locally or is accepted from another city/county program.
  3. Open the official source.
  4. Confirm current status with the local building department.
  5. Ask the provider what site-specific work, plan licensing, engineering, and utility review are still required.

Accepted Plans

6 plans

Permit Requirements

2 requirements

Site specific

Site-specific submission

Official city source

A site plan and project-specific planning, fire, utility, energy, and building documents remain required.

Last checked
Aug 12, 2026
Notes
Not listed in source

Fees

2 fee records

Official Sources

1 source

Los Altos ADU FAQ

6 answers

Does Los Altos have accepted or pre-approved ADU plans in this directory?

Yes. The current Los Altos, California page lists 6 accepted plans from 3 providers in the source-backed export.

What ADU plan sizes are listed for Los Altos?

The listed Los Altos plan records range from 330 to 1,190 sq ft. Use the individual plan cards to confirm bedrooms, bathrooms, plan documents, and provider details because some fields are not listed by every official source.

Where do the Los Altos ADU plan records come from?

They are tied to 1 official source in this page's source set, including City of Los Altos. Each plan, fee, and permit note should still be checked against the linked official source before use.

Can Santa Clara County or nearby city ADU plans be used in Los Altos?

The current Los Altos records do not show accepted plans from a separate Santa Clara County or nearby city program. Treat outside pre-approved plans as unavailable in Los Altos unless an official Los Altos source says they are accepted.

Do pre-approved ADU plans guarantee permits in Los Altos?

No. A source-backed accepted plan can reduce plan review work, but Los Altos can still require site-specific review, zoning checks, fees, utility coordination, and current code compliance. This page lists 2 permit requirements to help flag items to verify with the local building department.

Are Los Altos ADU permit fees and requirements listed?

This page includes 2 fee records and 2 permit requirements for Los Altos. These are source-backed summaries, not a final permit quote or approval checklist.