Same Address, More Space
No subdividing, no changing your address, no altering the feel of a property that was never meant to be split up. Just more space, quietly added.
Turn Your Backyard Into Extra Income or Room for Family
Free feasibility study · No obligation · Answers in one call
Los Altos Hills is built almost entirely on large, rural-residential lots, and its ADU rules reflect that: bigger required setbacks, a bigger buildable footprint, and provisions for extra height and floor area on properties that meet them. It's a different building conversation than almost anywhere else Apex Homes serves.
No subdividing, no changing your address, no altering the feel of a property that was never meant to be split up. Just more space, quietly added.
No bidding wars, no move-in surprises, no guessing what a new estate actually needs. Just a fixed price, on the Los Altos Hills property you already own.
Aging parents or adult children get their own front door and their own space, without leaving the family compound.
One team handles the entire process under one roof, so you don't have to coordinate a separate architect, permit expediter, and contractor with the Town of Los Altos Hills yourself.
We manage every step of design, permitting, and construction, so you don't have to navigate the Town of Los Altos Hills' process on your own.
Apex Homes reviews your lot's zoning, setbacks, utility hookups, and any hillside conditions before any commitment.
Choose from Apex Homes' floor plans, or go fully custom to fit a larger lot.
Apex Homes compiles and submits your complete permit package to the Town of Los Altos Hills.
Apex Homes monitors the review and responds directly to any town comments.
Apex Homes manages the full build through final sign-off.
One team, all-in-one: design, permits, and construction, without you having to coordinate a separate architect, expediter, or contractor.
Book a Free ConsultationUp to 1,200 sq ft for a detached ADU, plus a Junior ADU up to 500 sq ft within the existing home. Standard setbacks run 4 ft side/rear with a 40 ft front setback; height caps at 16 ft (up to 19 ft for properties that meet an expanded 30 ft side/rear setback). Your free feasibility study confirms the exact numbers for your lot.
Los Altos Hills is zoned almost entirely R-A (Residential Agricultural) for single-family use; your free feasibility study confirms what applies to your specific parcel.
On lots this size in Los Altos Hills, unused land is one of the largest untapped assets a homeowner has.
In added property value. A legal, permitted ADU is one of the highest-return upgrades available on a Los Altos Hills estate.
Properties that meet the Town's larger setback standards qualify for additional height and floor area, more usable space than most cities allow.
A second unit keeps aging parents or adult children on the property, with their own space, without subdividing land that was never meant to be split.
None of that has to stay true. Here's what changes once you build.
Every floor plan includes architectural drawings, structural engineering, and Title 24 compliance, scaled to match the larger footprint Los Altos Hills lots allow.
Apex Homes builds ADUs across 20+ Silicon Valley and Bay Area cities. Find your city below for local pricing, regulations, and permitting timelines.
"I'm usually stingy with five-star reviews, but Apex Homes absolutely rocks. From the first call, they treated my scattershot sketches like gold: polished the design, wrangled the permits so I never saw City Hall, and kept every penny transparent."
Meredith Munger · Google Review
"The most professional people you will meet. They know what they are doing."
Bao Tran · Google Review
"Best team to have on your side to guide you through your home renovation. Extremely professional and knowledgeable."
Laurie Darling · Google Review
"Aimee is so personal and knowledgeable! Explains all the questions I could ever think of."
Eva Panina · Google Review
A look at completed Apex Homes ADU builds across the Bay Area.
service includes:
A 991 sq ft 3-bed / 2-bath detached ADU in San Jose, fully condo-converted under AB 1033 and ready for separate sale — either the main house or the ADU can be acquired, financed, and resold on its own.
service includes:
Set on a corner lot in San Jose, this 983 sqft, two-story ADU is positioned at the rear of the property. It's a placement that lets a growing family live together today, and converts just as easily to a rental down the road.
service includes:
A 749 sq ft, 2-bed / 2-bath detached ADU in San Jose, built turnkey alongside a full remodel and ADU-title-conversion of the existing main house. The owner ends up with two independent rental units on a single 7,800 sq ft lot.
service includes:
A 1,200 sq ft, 3-bed / 2-bath detached ADU added to a duplex lot in central San Jose — taking the property from two income units to three, with the new ADU placed at the rear of a deep narrow lot and four mature trees preserved through construction.
Design-builders, general contractors, and prefab vendors each cover part of the job. Apex Homes covers all of it, in-house.
Swipe to compare →
Free feasibility study: zoning, buildable size, and matching floor plans in one call. No obligation.
