A 3-bedroom house or apartment in London should provide more space than a
2-bed, along with an additional bedroom. If you're thinking of expanding your family or want extra space for work or hobbies, you'll have a little more room to work with.
There might also be more storage to help you organise your things. The added bedroom could be a guest room, a new home office or study, or something else you need. There's generally just more breathing space.