Local pricing, permitting and delivery for the Irvine market. Researched estimates, not a quote form.
Irvine is served out of our Los Angeles logistics lane. Working figure for shipping container shed in the Irvine market is $416 per square foot for a Signature build before site work, with freight running around $18,360 per module over roughly 2,700 loaded miles. A metro population near 3,186 thousand means subcontractor availability for the site scope is generally workable, which matters more to your schedule than most buyers expect.
What the jurisdiction requires. Irvine falls under Title 24 energy compliance, HCD modular approval program, seismic design category D-E. California requires HCD plan approval for factory-built housing; ADU law is the most permissive in the country and pre-approved plans shorten permitting materially. Before we quote, we confirm the zoning district, setbacks, whether the parcel sits in a flood zone, and whether the local authority has a defined pathway for factory-built structures. In California, that answer is usually available in a single phone call, and it changes the design if you get it late.
In Irvine the practical constraint is usually placement rather than permitting. We look at where the truck can stop, how far the crane has to reach from there, and whether utilities can be trenched a short distance or a long one. Those three answers move the site number more than any finish upgrade.
We watch the Irvine queue closely because it moves. Steel and finish material lead times tightened this year and seasonal demand compresses the calendar going into spring. The window we quote you is what the line can actually hold today, which is why it is a range rather than a promise.
Signature finish level, adjusted for California regional cost. Foundation, utilities, permits, freight and crane quoted separately.
| 400 sq ftstructure before site work | $166,400delivered total varies with site scope |
| 600 sq ftstructure before site work | $249,600delivered total varies with site scope |
| 800 sq ftstructure before site work | $332,800delivered total varies with site scope |
| 1,000 sq ftstructure before site work | $416,000delivered total varies with site scope |
| 1,200 sq ftstructure before site work | $499,200delivered total varies with site scope |
| 1,500 sq ftstructure before site work | $624,000delivered total varies with site scope |
Site-built construction is sequential: permit, then excavate, then frame, then finish. Factory-built runs the site work and the building in parallel. While your foundation is being poured and utilities are being trenched, the structure is already being framed and finished on a production line hundreds of miles away. That overlap is where the calendar savings actually come from, not from anyone working faster.
There is a persistent assumption that factory-built means less oversight. The opposite is true. Modules are inspected at multiple stations during production by third-party agencies, then inspected again on site after the set. A conventional stick-built house typically sees an inspector four to six times total. A modular unit is checked at every stage where a defect could be hidden by the next layer.
A production line orders in bulk, cuts to optimized lengths, and recycles offcuts across dozens of units. Site-built framing typically sends fifteen to twenty percent of delivered material to a dumpster you paid to rent and paid again to haul. Lower waste is part of why the per-square-foot number comes in lower, and it is the part nobody puts in the brochure.
The trade shortage is the single biggest schedule risk in construction right now. Factory production concentrates skilled labor in one facility where crews repeat the same operations daily instead of assembling a new subcontractor roster for every project. You are not waiting three weeks for an electrician to have an opening.
We start with what the site will actually allow: zoning, setbacks, utility availability, flood zone, access width for a truck and crane, and whether the jurisdiction has a defined modular pathway. This is where projects get saved or killed, and it costs nothing to find out.
Layout, finish level and options are locked, and the price for the building is set at that point. Site work is priced separately and transparently, because that is the number that varies with your specific lot and the one most suppliers hide until you are committed.
Plans go to the state modular program or local authority while the site work begins. Running these concurrently rather than sequentially is where most of the schedule advantage lives.
Your unit enters the line. Framing, envelope, mechanical rough-in, insulation, drywall, finish, fixtures and cabinetry happen at successive stations with inspection at each. You get progress documentation rather than guesses.
Foundation is poured or set, utilities are trenched and stubbed, access is prepared for the delivery truck and crane. This runs while your unit is in production.
Modules are transported and craned onto the foundation. For a single-module building this is typically a matter of hours, not days — the set itself is the fastest part of the entire project.
Marriage lines are joined, mechanicals and utilities are connected, exterior finishes are completed at the seams, final inspection is called, and you get your certificate of occupancy along with documentation.
These are different legal categories with different codes. A manufactured home is built to the federal HUD code, arrives on a permanent steel chassis, and is titled like a vehicle. A modular building is built to the same state and local building code as site-built construction, is set on a permanent foundation, and is deeded as real property. Modular appraises, finances and insures as a house. That distinction affects your loan, your taxes and your resale.
Because a modular building is code-built real property on a permanent foundation, appraisers treat it as they would any comparable site-built structure. The appraisal turns on location, size, finish level and condition — the same factors as any other home. Where owners run into trouble is confusing the two categories above and then being surprised by a chattel loan.
Module dimensions are constrained by what can legally travel a highway, which is roughly sixteen feet wide per module before special permitting. That constrains module width, not building design. Combine modules, stack them, add site-built connective elements, and the layout freedom is closer to conventional construction than most people expect.
Tell us the scope and the ZIP. You get a real delivered-and-installed number, not a "contact us for pricing" runaround.
We run a group of focused sites so you land on the one that matches what you actually need instead of a catch-all catalog.