It started with an $118,000 hotel bill
In March 2023, I slid a number across the table to our VP of ops that made him put his coffee down. We'd spent roughly $118,000 on hotels for 14 rotational workers in a single quarter. Not luxury hotels — suburban suite hotels, booked late, in a market that had no business being that expensive.
I run administrative purchasing for a 240-person company. My remit is roughly $2.1 million a year across 9 vendors: office supplies, fleet fuel, facilities services, and whatever someone needs urgently enough to walk it to my desk. That spring, the urgent item was housing.
The ask: get 6 livable units within reasonable driving distance of a regional job site by Q4. Permanent construction wasn't going to price out, and short-term leases weren't available on the parcels we were working. So I started looking at prefab ADUs, foldable units, and anything else that could arrive on a flatbed and start working the same month.
At the time, I couldn't have told you the difference between a modular home and a manufactured home. I had a spreadsheet, a VP pinging me every Thursday, and about 9 weeks to become the company's in-house expert on a product category I'd never bought.
Then I had to figure out what “BOXABL sourcing” actually meant
BOXABL came up fast. The Casita — a foldable unit designed to ship flat and unfold on site — landed on the short list because it addressed the actual constraint, which wasn't the sticker price. It was whether we could physically get a unit onto land where we didn't control the roads.
But here's where the funnel got muddy. When I searched for “BOXABL sourcing,” I got three very different things:
- Direct purchase through the manufacturer.
- Dealers and distributors offering “BOXABL wholesale sourcing” for bulk orders.
- Third-party sourcing firms that used the name in their SEO but were actually brokering another factory's units.
That third bucket nearly cost me two weeks. I chased three quotes that read like dealer pricing and turned out to be re-skinned units from a different OEM. Not deceptive, exactly. Just not what the wording implied.
If you're shopping prefab houses for affordable housing projects and someone pitches you a “wholesale sourcing” arrangement, ask two questions in writing: Who is the manufacturer of record? And who is the dealer of record? If either answer is fuzzy, keep moving.
The decision I chewed on for four weeks
The real fork wasn't any single vendor. It was foldable prefab versus a stick-built ADU from a local builder we already trusted.
The stick-built option offered control. We could spec the exact interior, work with a builder we'd used before, deal with someone whose truck we could actually see.
The foldable route offered speed and repeatability. Same unit, same install, same punch list. If we needed a seventh unit next year, we'd already know the drill.
I went back and forth on this for about a month. What tipped it: we didn't need custom. We needed bunks, a kitchenette, a bathroom, and something that wouldn't look like an OSHA violation on day one. Custom would've been paying extra for flexibility we were never going to use.
Looking back, I should have called two local builders anyway to benchmark cost, even knowing they were probably too slow. At the time, I justified skipping it as “saving cycles.” Really I just didn't want to reopen a comparison I'd already decided against.
The part I got wrong: site work and permits
Here's the thing that wasn't in the brochure. The units were the easy part. The site was the hard part.
The parcel we picked had an existing utility easement. I assumed permits would be a formality. They weren't. The local building department took about 9 weeks to issue a conditional site-use approval, and the utility connections ended up costing more than our first installation budget projected.
I was told by a rep early on that “these things go in fast” and mentally treated that as a timeline. Rookie move. The unit install is fast. The site work is not, and it's governed by local code, not by the manufacturer.
According to FTC advertising guidelines (ftc.gov), marketing claims must be substantiated and not misleading. That standard applies to the seller. It does not apply to your local building department, and it definitely does not apply to a contractor's verbal estimate in a parking lot. Budget your own time for site work, not the vendor's.
What it actually cost — and is a modular home a good investment?
We deployed 6 units. Total build-out — units, freight, footings, site prep, utilities, permits, and the change orders that always show up — landed at a range I'd describe as roughly comparable to 11 months of the hotel line item. By month eleven, the units had paid for themselves against the hotel spend.
That is not the same as saying they appreciated in value, and I want to be careful here. I see a lot of content online framing modular homes as an investment vehicle, and if you ask me, that framing burns people.
In my opinion, the better question isn't “are modular homes a good investment?” It's “relative to what?” Against hotels, our math worked. Against buying land and building permanent housing, our math was worse — but the timeline made it moot. Against a 24-month lease from a housing provider, our math was roughly a wash, but we owned the flexibility to leave.
The honest answer: modular and prefab units make sense when you're converting a recurring operational expense into a one-time capital cost, on land you control at least partially, in a jurisdiction that has seen an ADU before. If any of those three conditions is missing, the case weakens fast. This worked for us, but our setup was fairly specific. Yours may be different.
If I did it again
I'd run the sourcing diligence the same way, just faster. The BOXABL sourcing rabbit hole taught me how to spot a broker posing as a dealer, and that skill has paid for itself on everything else I buy.
I'd budget site work at 40% of total project cost instead of the 20% I assumed. That was the single biggest error in the project, and it was mine, not the manufacturer's.
And I'd open the permitting conversation with the local building department in week one, before picking a vendor. Not after.
The thing I keep coming back to: the unit price was never the number that decided this. A vendor can quote you a unit. Only you can estimate the cost of getting it onto your land, legally, with the lights on. That's the number that decides whether a prefab house for affordable housing projects actually pencils out for your specific situation — or whether it just looks like a deal until month six.
My experience is based on one 6-unit deployment in one jurisdiction, using one vendor category. If you're running a larger program across multiple states, or dealing with sites that have real civil engineering requirements, your calculus will be different — and honestly, more informed than mine was going in.
