A prefab building kit typically costs 25% to 35% of a finished home's total price. The rest covers foundation, trades, permits, and finishes. Labor is the biggest variable and the one most buyers don't see coming.
If you've been searching for prefab homes with prices, you've probably noticed that getting a straight answer is harder than it should be. That's because the price of a prefab home depends on more than just the home itself, and understanding those pieces makes budgeting a lot less stressful.
Here's a breakdown of what goes into the cost.
Why Prefab Home Prices Are So Confusing
"Prefab" isn't one product; it's a category that covers several very different business models, and each one prices differently.
| Category | What You Get | Where It's Built |
|---|---|---|
| Turnkey prefab | A highly finished home package, close to move-in ready | Off-site, delivered in a near-complete state |
| Modular homes | Finished 3D volumes shipped and set on your foundation | Off-site, delivered as finished modules |
| PMHI building package | A panelized, pre-engineered structural shell | Factory-manufactured, assembled on your lot |
Tip: Before comparing prefab home prices, shop by category first. Decide whether you want a finished home, a modular unit, or a structural package you'll finish yourself so you can narrow your options.
What's Included in a PMHI Building Package?
A PMHI building kit includes the structural shell of your home: engineered and manufactured in a factory-controlled environment, then delivered to your site ready for assembly. Once the shell is assembled, you have a lockable structure with an unfinished interior.
Typical Inclusions
- Building plans, including foundation design
- Pre-framed wall sections
- Roof trusses
- Exterior sheathing and siding
- Windows (factory-installed)
- Exterior doors with temporary construction locks
- Beams, posts, and structural framing
- Roof sheathing
- Second-floor framing and subfloor (2-story plans)
- Nails, caulk, flashing, and hardware
Not Included
- Foundation — slab, crawl space, or perimeter (by others)
- Site grading and preparation
- Permits and building fees
- Utility connections
- Plumbing, electrical, and HVAC
- Insulation and drywall
- Interior doors and trim
- Kitchen and bathroom cabinets and countertops
- Flooring
- Finish roofing and gutters
- Overhead garage door
- Light fixtures, shower doors, and appliances
- Interior and exterior paint
⚠️ For the full included and excluded list, see our package specifications page.
Site-related costs are also outside the kit: grading and site prep, permits and building fees, and utility connections. These vary enough by county that we always encourage customers to contact their local building department early; those numbers can shift your budget meaningfully.
💡 Good to know: In some locations, PMHI can also provide framing carpenter labor as an option. Ask your local PMHI representative whether this is available in your area.
⚠️ A note on labor costs
Of everything our customers encounter, contractor rates are the biggest surprise. Labor varies significantly across California, Nevada, and Oregon, and it moves with the market.
Most PMHI customers operate as owner-managers: they hire and coordinate licensed subcontractors directly, which keeps costs down but requires real involvement in the build. Others bring in a general contractor to manage the process. That adds 10%–20% in management costs, but takes scheduling, coordination, and liability off your plate. Neither is the wrong call. It depends on how much time you have and how hands-on you want to be.
So, How Much Does a Prefab Building Package Cost?
In our experience, prefab home prices (building package) typically represent approximately one-quarter to one-third of the finished home's total cost. The remaining budget goes toward labor, interior finishes, permits, utilities, and site work.
Disclaimer: These percentages are illustrative only. Actual shares vary by floor plan, region, site conditions, and finish level. Use this as a framework for budgeting conversations, not a quote.
Ready to see real numbers? Check out our published price list.
Frequently Asked Questions
Are prefab homes cheaper than traditional homes?
It depends on what you're comparing. A Panelized building package can reduce material waste and accelerate framing timelines compared to stick-built construction, but the total cost of any home, prefab or traditional, still depends on finishes, labor, and site conditions.
Are modular home prices the same as prefab prices?
No. Modular homes are typically shipped as finished 3D volumes, while a PMHI prefab package is a Panelized structural shell. Because the products are different, their pricing structures are different too.
What affects prefab home prices the most?
Floor plan size and complexity affect the building package price, while labor availability and site conditions tend to have the biggest impact on your total project cost.
Can I customize my floor plan?
Yes. PMHI's design team works directly with Owner-Builders and General Contractors to modify existing plans or develop custom layouts.
Ready to Take Home Your Dream Home?
Prefab home prices only tell part of the story. Understanding what's included, and planning for labor, permits, and site preparation, helps you build a realistic budget before construction begins.
Every project starts with a plan and a realistic budget. Browse our floor plans to find a design that fits your goals, then connect with your local PMHI representative for a personalized building package quote.
Browse floor plans to find the right fit for your budget, or connect with a local PMHI dealer who can explain what's included, discuss available options, and help you plan the next steps with confidence.