My van was in a garage for repairs, bailiffs have changed the locks due to the garage not paying rent.

Make a third party claim.^[1]

When a landlord is recovering unpaid rent from a tenant in a commercial property, one of the enforcement methods of taking control of goods to recover a debt, is to secure the debtors goods on the premises on which the bailiff finds them.^[2]

The bailiff may only take control of goods if they belong to the debtor.^[3]

If the goods secured on the premises do not belong to the debtor, the owner may make a third-party claim.^[1][4]

If you don't know what court issued the enforcement power for the unpaid rent, then make the third-party claim in the High Court.^[5][6]

^{[1] Civil Procedure Rule 85.4
[2] Paragraph 13(1)(a) of Schedule 12 of the Tribunals, Courts and Enforcement Act 2007
[3] Paragraph 10 of Schedule 12 of the Tribunals, Courts and Enforcement Act 2007
[4] See Claiming your vehicle (goods), make a third-party claim
[5] Civil Procedure Rule 85.6
[6] See Making a claim to executed goods}