If you are looking for maps to use in your work then you can find them in the online database Digimap. We have access to their ordnance survey collection which provides contemporary ordnance survey maps and map data.
You can find Digimap on the library database page and this guide gives information about how to access it and register for use:
Registering does take up to two working days so be sure to register in advance!
Once registered there are lots of guides provided by Digimap that can help you out: