Straight answers
What should you check before buying a used tiny home?
Four things, in this order: whether there is a lien registered against it, what it was certified as and by whom, whether the title or registration matches the unit in front of you, and what water has done to it. The first one matters most because it does not go away with a handshake, and the last one is the most expensive to discover afterwards. The used tiny home market has no equivalent of the checks a used car gets automatically, which is not an oversight so much as a gap in how these homes are classified.
Figures verified against the sources below · September 9, 2026
01 — The longer answer
Why nobody runs these checks for you
The federal brand database does not cover a home on wheels
In the US, the National Motor Vehicle Title Information System is the Department of Justice database that records junk, salvage and flood brands so a damaged vehicle cannot be quietly resold. Its own published scope covers automobiles, buses, trucks, motorcycles, motor homes and truck tractors, and it states that vehicles excluded from NMVTIS include trailers, mobile homes, semi-trailers and boats. A tiny house on wheels is titled as a trailer, so it sits outside that system. A self-propelled motor home is inside it. That single classification difference is why a used tiny home needs checks a used RV does not.
Search for a lien before money moves, not after
In British Columbia a lien is a notice of a legal claim registered against personal property to secure a debt, and the Personal Property Registry records those under the Personal Property Security Act. The Province's own instruction is direct: make sure personal property does not already have any liens registered against it before you buy personal property privately. A staff-conducted search of the registry is 10 dollars, or 15 dollars combined with a Manufactured Home search. Other provinces run equivalent registries, and in the US a lien is recorded against the title held by the state titling agency.
The online registry is not open to the public in BC
This one catches people out. BC Registries states that online use of the Personal Property Registry is designated for professionals who run searches regularly and hold a premium account, and that it is not available to the general public at this time. So a private buyer searches in person at a Service BC location, by mail, or through a third-party provider who will add their own fee. Budget a few days for it rather than expecting to check a website the night before you collect the keys.
Ask what it was certified as, and get the document
Certification is the only third-party record of how the home was built, and it decides what you can insure and finance it as. Ask which body certified it, which standard it was inspected against, and for the certificate itself rather than a photograph of a sticker. If the seller cannot produce it, treat the home as uncertified and price the consequences in: an uncertified unit is the hardest case to insure and to lend against. Whether a certification carries to a second owner is a question for the certifying body, and we would not take the seller's word for it.
Water is the failure that hides
A tiny home on wheels flexes every time it moves, and the places that fail are the places water gets in: roof penetrations, window and door flashing, the wet wall behind the shower, and where the floor meets the trailer. Soft spots underfoot, staining at ceiling corners, a smell that does not clear, and fresh paint in one small area are all worth a second look. On a wheeled unit, look at the trailer itself as hard as the house: frame rust, tyre age and axle condition are structural, not cosmetic.
None of this makes the used market a bad place to buy. It makes it a market where the paperwork is the product. If the lien search is clean, the certificate is real and the roof is dry, the rest is negotiation.
02 — Where to go next
03 — Sources
Each figure above links to the authority it came from.
NMVTIS System Overview, US Department of Justice Bureau of Justice Assistance: the system covers automobiles, buses, trucks, motorcycles, motor homes and truck tractors, and vehicles excluded from NMVTIS include trailers, mobile homes, special machinery, vessels, mopeds, semi-trailers, golf carts and boats
vehiclehistory.bja.ojp.govProvince of British Columbia, Personal property liens and searches: a lien is a notice of a legal claim registered against personal property under the Personal Property Security Act; buyers are told to make sure personal property has no liens registered against it before buying privately; staff-conducted search 10 dollars, or 15 dollars combined with a Manufactured Home search; online registry use is designated for professionals with a premium account and is not available to the general public at this time
www2.gov.bc.ca
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