Hi,
There's plenty of safety deposit type places all over the UK. Shop around and see which does suit you.
**WARNING**
Look carefully at what you'll be trying to keep safe and potentially storing in such places. Although slightly skewed, and being of Indian origins, last summer a family member unfortunately was mugged just after leaving such a place in NW London. Upon trying to hold onto the bag, one of the attackers pushed her and she unfortunately fell back and the result was her head split open and a hospital visit with stitches. There was a LOT of valuable, irreplaceable high value Gold and other jewellery along with high value watches - all were being taken out for a family wedding a few weeks later. The insurance company didn't pay out.
As it turns out, with police investigation, a pattern was emerging and some months later the thieves were found and charged. It also turned out they were working as part of a larger group and specifically targeting Indian ladies going into safety deposit places.
In this case the group admitted to 'profiling' in order to get the best chance of high value items, but the way they monitored such places means anyone really could be watched/observed, and these guys would wait till the victim was much further away from the place and in an area with no CCTV etc.
For the most part of course, anyone using such a place will be perfectly safe, but just a reminder to be VERY vigilant, be extra careful by only going with trusted family/friends so there's more numbers of you, and if things are particularly high value monetary or sentimental wise, to split between multiple people.
The gang in this instance are awaiting trial etc and I hope they get some strong sentences.
PLEASE be careful.
Cheers, DtM! West London & Slough UK!