FormX

Custom ADU & Single-Family Home in the Bay Area
Bringing your dream space to life, from design to build.

09/02/2026

The backyard sitting empty is the most expensive space on your property.

A formX Backyard Office changes that. A fully permitted, purpose-built structure designed for the specific lot it sits on.

Office, gym, creative studio, wellness space. Acoustic performance, smart technology, and premium finishes built in from the design stage.

Not a prefab. Not a shed. A permanent structure on your own property.

From $90,000.

Book your free consultation at https://formx.com/contact

08/22/2026

The lot before. The lot after.

Not selected from a catalog of standard plans. Not a module dropped onto a lot. A Secondary Suite drawn from scratch for the specific land it sits on.

Up to 1,200 sq. ft. Studio, 1BR, or 2BR+ configurations. From $230,000.

Book your free consultation at https://formx.com/contact

08/19/2026

Nothing on a formX build site is adjusted on the day.

Every component arrives already engineered to connect. No cranes. No trucks. No heavy equipment. Hand tools only. The engineering happens off-site before a single piece reaches the lot.

That is what keeps the site clean, the neighbors undisturbed, and the timeline predictable.

Book your free consultation at https://formx.com/contact

08/15/2026

Most Bay Area homeowners know the lot has more to give.

The unused corner. The side yard that's been empty for years. The space behind the garage that isn't doing anything.

The question was never whether to build. It was whether the process would hold.

Jennifer, a Bay Area homeowner, said it plainly after her build: "The team is amazing. They make sure their clients are thrilled, not just happy."

A formX Secondary Suite from $230,000. One team. One confirmed price. Fully permitted.

See what your lot can become. Contact us today.

08/12/2026

Most Bay Area homeowners don't realize what a permitted Secondary Suite does to a property until they're in a transaction and the other side does.

A fully documented unit on title. Recognized rental income potential. Flexible use a buyer's agent can actually speak to. Built to a standard that clears any inspection.

Every formX Secondary Suite is permitted through the correct city process and documented cleanly from first design to final handover.

Secondary Suites from $230,000. Start the conversation today.

08/08/2026

Every formX structure is built from sustainably sourced, recyclable materials.

Zero waste on-site. No heavy vehicles or machinery on the lot. Superior insulation built into every structure from the design stage.

Greener, cleaner, and built to last.

Learn more at formx.com/company

08/05/2026

Most ADU builds wait for permits to clear before manufacturing starts. That wait adds months.

formX runs both at the same time. Components are manufactured while permits move through city review. When approval comes through, assembly begins immediately.

The result is a finished build that arrives significantly faster. Without cutting anything that matters.

Learn more at https://www.formx.com/the-process

08/01/2026

Every Bay Area city runs its own ADU review process.

Palo Alto's approval timeline isn't Oakland's. Los Altos Hills has setback rules that Los Altos doesn't. What moves quickly in Cupertino can trigger a correction round in Menlo Park.

Most projects discover this partway through a design drawn without that knowledge.

We build city-specific requirements into the process before the first submission goes in. Every round of review followed through by the same team that drew the structure.

Permitting isn't an add-on. It's something we own.

See the full portfolio at https://www.formx.com/

07/29/2026

The Poolside Guest House in San Jose was designed around a single requirement: the studio had to feel like it belonged to the property, not like something added to it.

The connection to the yard, the proportions, the finishes. All resolved at the design stage. The result reads as part of the property.

See this project at https://www.formx.com/

07/25/2026

Three structures. Every one drawn from scratch for the specific lot it sits on.

Secondary Suite from $230,000. Backyard Office from $90,000. Custom Single-Family Home from $750,000.

Built across Palo Alto, Los Altos, Los Altos Hills, San Jose, Menlo Park, Oakland, San Francisco, and Marin County. One team. First conversation to final handover.

See the full portfolio at https://www.formx.com/

Address

1250 Alderwood Avenue
Sunnyvale, CA
94089

Website

https://www.formx.com/

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