Chapter 05 · The Places · Santa Clara County

ADU builder in Los Altos.

Some of the highest land values in the country make an ADU here a powerful equity and family-housing play. We deliver a finish that belongs in the neighborhood. $180K–$557K all-inclusive, with a permitting budget built in. Most homes are delivered in 4 to 9 months once permits clear.

Los Altos Santa Clara Co. · 65 min from factory · Homes delivered

65 min from our Salinas factory

Approximate Los Altos build neighborhood, never exact addresses.

Los Altos ADU Rules

What applies on your lot.

1,200

ft² max · detached ADU

4 ft

min. side / rear setback

60-day

ministerial permit clock

1

parking space max, often waived

Los Altos follows the California statewide ADU baseline; local rules can't go below it. Full rulebook with citations →

Why Us for Los Altos

We're local. Actually.

Our family-run team is based right here. Our factory sits in Salinas, 65 minutes from Los Altos, and we have built across this region for years. When we say "local," we don't mean a sales rep who covers your area from somewhere else. We mean the people who design, build, and deliver your home are your neighbors.

That matters more than you'd think. When a planning department needs a clarification, we go in person. When an inspector flags something, we are there the same day. No phone tag, no road trips, no "we'll get back to you next week."

40+

years of building experience

65

minutes from our factory

4–9

months to keys

4.9/5

stars on Google

05 Our Local Team

Los Altos Santa Clara County

Popular in Los Altos

These three models fit most Los Altos lots.

BEST VALUE Four Fifty 450 ft² · Studio · 4 months → MOST POPULAR Six Sixty 660 ft² · 1BR · 5 months → BEST FOR RENTALS Six Sixty 2BR 660 ft² · 2BR · 5 months →
See all 14 models →

A Los Altos Family

Hear from a Los Altos family.

“We are so excited. We cannot believe it’s already here!”
Allan & Renz · 945 ft² · 2 Bed · Housing parents

These are excerpts from real, verified Google reviews. Read more →

Los Altos ADU FAQ

Questions about building in Los Altos.

Los Altos follows California state ADU law. For the full rulebook with citations, see our ADU Rules Lookup, the Santa Clara County ADU regulations guide, or the statewide California ADU laws 2026 overview.

How big can an ADU be in Los Altos?
Los Altos follows California state ADU law. Detached ADUs are allowed up to 1,200 sq ft under state law. Cities may cap size lower, but never below 850 sq ft (studio or 1 bedroom) or 1,000 sq ft (2+ bedrooms). Smaller lots may also qualify for a Junior ADU (JADU) up to 500 square feet. Our 14 models range from 405 to 1,200 square feet, and your free property analysis confirms exactly which sizes your lot allows.

What are the setback requirements in Los Altos?
4 ft from side and rear property lines for new construction (0 ft for a conversion within an existing structure). Front setback follows the main home's zoning. We confirm the exact setbacks for your specific lot during the free site visit (step 3 of our process).

Do I need to add a parking space?
At most 1 space per ADU, with broad exemptions: within a half mile walking distance of public transit, when replacing a garage, and for conversions. Most lots qualify for an exemption. We verify your lot's parking situation as part of the feasibility study.

How much are Los Altos ADU permit fees?
Permit and impact fees vary by city, ADU size, and utility connections. Your project price carries a permitting budget built in, and we handle every submission for you. Exact fees are set by your city and county and are itemized in your feasibility study.

How far is your factory from Los Altos?
Our factory is in Salinas, about 65 minutes from Los Altos. We've delivered homes here and know the local conditions well.

Your Los Altos Property

Let's see if your Los Altos lot can host an ADU.

Our team will pull your property records, check setbacks, and tell you straight in about 30 minutes, free.

See If My Property Qualifies →
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