Same Address, More Space
No new mortgage, no new school district, no goodbye to the Antioch neighbors you know. Just more space, right where you are.
East Bay Lot Sizes Meet Bay Area-Level Rental Demand
Free feasibility study · No obligation · Answers in one call
Antioch is Apex Homes' first city outside the Silicon Valley and Peninsula core, an East Bay Delta community where home prices run well below the South Bay but the workforce commuting into it keeps growing. That gap between what housing costs here and what it costs closer to the job centers is exactly what makes a rental ADU pencil out, on lots that tend to run larger and deeper than the denser parts of the Bay Area.
No new mortgage, no new school district, no goodbye to the Antioch neighbors you know. Just more space, right where you are.
No bidding wars, no move-in surprises, no guessing what a new house actually needs. Just a fixed price, on the Antioch property you already know.
Parents, grown kids, or whoever needs it get their own front door and their own space, close enough to see every day, on a lot with real room to spare.
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 City of Antioch yourself.
We manage every step of design, permitting, and construction, so you don't have to navigate the City of Antioch's process on your own.
Apex Homes reviews your lot's zoning, setbacks, and utility hookups before any commitment.
Choose from Apex Homes' Antioch-ready floor plans, or go fully custom.
Apex Homes compiles and submits your complete permit package to the City of Antioch.
Apex Homes monitors the review and responds directly to any city 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 800 sq ft for a small detached ADU, or up to 1,000 sq ft for a larger attached unit, plus a Junior ADU up to 500 sq ft. Front setback runs 30 ft (20 ft on a street-facing side yard); side and rear setbacks run 4 ft minimum. Height caps at 16 ft. Your free feasibility study confirms the exact numbers for your lot.
Up to two detached ADUs on multi-family lots, plus conversions of existing non-livable space; conversion ADUs are capped at 25% of the existing unit count (minimum one).
Every year that yard sits unused in Antioch is rent, equity, and space someone in your family could actually be using.
Left on the table. That's a realistic range for a well-built two-bedroom ADU in Antioch, one of the more accessible rental markets in the East Bay.
In equity your property isn't capturing yet. A legal, permitted ADU is one of the few upgrades that adds this much value to an Antioch home.
Without it, aging parents, adult kids, or long-term guests are stuck choosing between crowding your home or leaving Antioch altogether.
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, sized to make the most of Antioch's larger suburban lots.
Apex Homes builds ADUs across 20+ Silicon Valley and Bay Area cities from our South Bay home base. 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, built on Apex Homes' standard pre-approved 991 3B2B plan after demolition of an aging 850 sq ft accessory structure, with a full electrical service upgrade on a lot flagged for liquefaction.
service includes:
991 sq ft, 3 bed / 2 bath detached ADU in San Jose, built after full demolition of an existing garage on a compact 7,208 sq ft lot in a liquefaction zone, with a full electrical service upgrade and a brand new dedicated ADU meter.
service includes:
A 495 sq ft, 1 bed / 1 bath detached Customized ADU in San Jose, built for multi-generational family living on a spacious 13,200 sq ft lot in a Wildland-Urban Interface zone, with Class A fire-resistant construction and a full residential fire sprinkler system.
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.
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.
