
Custom Modular Homes Built in the Bay Area | As Fast As 90 Days
Steel construction, premium finishes, factory precision, and quick move-in dates.
Licenses:

At Fast Struct, we don't hand you a catalog and ask you to pick a box. We hand you a blank canvas.
Whether you're envisioning an open-concept family home, a modern live-work space, or a compact retreat - our team designs your home around your life, your lot, and your budget. Every layout, room size, finish, and configuration is tailored from the ground up.
What does your dream home look like? We'll build it.

Any Layout, Any Size
From compact 1-bed units to spacious multi-room family homes.
Fully Custom Finishes
Flooring, cladding, rooflines, HVAC, electrical - all your choices.
Designed For Your Lot
We work around narrow driveways, tricky access, and complex sites.
Steel-Framed Precision
Every home built to millimeter tolerances in our Santa Clara facility.
Get Your Free Estimate
Fill out the form and a Fast Struct specialist will reach out to discuss your project, walk you through your design options, and outline your build timeline. No commitment required.
Fast Struct: California's Premier Modular Home Builder
Fast Struct began with a simple idea: remove the friction from building your dream home in California. Traditional construction is slow, unpredictable, and overwhelming - so we built a smarter way.
As a licensed California contractor with a state-approved manufacturing facility in Santa Clara, we deliver complete A-Z solutions for modular homes, ADUs, and panelized structures across the Bay Area and beyond. By moving production off-site and into our facility, we bring together speed, flexibility, and quality that traditional builders simply can't match.
From your first discovery call to the day we hand you the keys, your dedicated project manager handles everything: permits, design, fabrication, and delivery. We're not just a modular home builder near you. We're your partner in precision.
What We Build
From compact ADUs to full custom family homes - every Fast Struct project is engineered to your site, your design, and your timeline.
Custom Modular Homes
Fully personalized layouts, finishes, and open-concept living spaces, built in steel in our Santa Clara facility.
Accessory Dwelling Units (ADUs)
Arrives 95% complete and craned into place in a single day.
Panelized "Smart Wall" Homes
Precision-engineered steel panels for complex designs and difficult lots.
Hybrid System Homes
Panels and modules combined for maximum architectural freedom and performance.
Multi-Unit Developments
Scalable, millimeter-accurate unit replication for developers and investors.
Permits, Site Prep & Delivery
We handle the full process from zoning to final handover.
Two Paths. One Standard of Excellence.
We don't force you into a box. Fast Struct recommends the construction method that fits your site, your design, and your timeline - no upsells, no guesswork.

The Modular Route - Ideal for Rapid Deployment
We manufacture fully finished 3D volumes, including structure, electrical, and finishes, in our factory. They arrive on your site ready to connect.
- Fastest delivery and quick turnaround
- Maximum noise and disruption reduction on-site
- Best for projects requiring absolute predictability

The Panelized Route - Ideal for Design Freedom
We manufacture precision-engineered steel Smart Walls that pack flat and assemble rapidly on-site. This allows for wider spaces and access to difficult lots.
- Complex architectural designs and open layouts
- Sites with limited access (narrow roads, crane restrictions)
- Clients seeking a fully custom footprint
Build Smarter. Live Better.
Discovery
We analyze your needs, budget, and site conditions to recommend the perfect construction method and configuration for your project.
Design & Permit
Our team tailors your floor plan and navigates the local zoning and permitting process on your behalf. Because we're a state-approved modular factory, plans submitted through the state route are approved in days, not the months it takes traditional builders. You stay informed without the headache.
Fabrication
While your foundation is poured on-site, your home is simultaneously precision-manufactured in our Santa Clara, California facility. This parallel process, steel-framed, factory-controlled, and built to tolerance, is exactly how we move so fast.
Assembly
Whether modular or panelized, installation is rapid, clean, and quiet. Neighbors will barely know we were there.
Handover
Walk into a fully finished home, built to a tolerance that traditional construction simply cannot match. You're handed the keys, not a punchlist.
Why California Homebuyers Choose Fast Struct
As Quick As 90 Days
Our off-site factory production runs in parallel with your on-site foundation work, slashing timelines that no traditional builder can compete with.
Steel Construction - Not Wood
Every Fast Struct home is built with a steel frame, not wood. Steel is non-combustible, doesn't rot, and holds to millimeter-level tolerances. It's a fundamentally better building material and one that 90% of our competitors simply can't offer.
State-Approved Facility = Faster Permits
As a state-certified modular factory, our plans go through the state approval route, meaning permits in days, not months. No other local builder can say that.
Complete A-Z Solutions
Permits, design, fabrication, and delivery all under one roof. One team, one point of contact, zero coordination headaches.
Factory Precision, Premium Finishes
Premium materials and finishes built to millimeter tolerances. Your home will exceed the quality of traditionally built homes at the same price point.
Dedicated Project Manager
Every Fast Struct client gets a single, dedicated project manager guiding them personally from discovery call to handover day.
Licensed CA Contractor + State-Approved Facility
Fully licensed, bonded, and operating from a certified California manufacturing facility. Every build is compliant and warrantied.
You Are the Architect of Your Experience
Customize room sizes, wall placements, roof styles, cladding, HVAC, electrical, flooring, and finishes. You shape the home. We build it.

“Fast Struct delivered our dream home in under 90 days. The quality is unreal - better than homes we toured at twice the price. The whole experience was completely stress-free.”
- Sarah M.
Completed Projects
Experience the quality and craftsmanship of our recent custom ADUs.















Locally Built. Serving the Bay Area and Beyond.
Headquarters
3395 Edward Ave
Santa Clara, CA 95054
Counties we serve
- Santa Clara County
- San Mateo County
- Alameda County
- Contra Costa County
- Santa Cruz County