Lock-ups are often the cheapest dry, lockable space in town. A few questions avoid surprises.
Will it fit?
Many garage blocks were built for 1960s and 70s cars. Measure the door opening and the internal length before you sign, especially for a modern estate, a van or a motorbike with a trailer.
Is it dry?
Look at the roof and the floor at the back wall after rain. A few bricks and a pallet keep things off a damp floor.
Power and light
Most lock-ups have neither. A battery lantern does the job. If you need power for charging or tools, look for a listing that offers it.
What the agreement allows
Storage is fine everywhere. Running a business from a lock-up, with repairs, deliveries or customers, usually isn't.
Security
Up-and-over doors are easy to force. A ground anchor or a garage door defender adds a lot of protection for little cost, if the agreement allows it.