The Post Building is a modern development on the site of the former Royal Mail sorting office, offering public access to its rooftop spaces
Insider Tips
While you can't access the inside of the building (offices and co-working spaces), the rooftop is accessible for free and offers great views over the surrounding area
No need to book in advance, just show up and talk to the receptionist. Be aware, you'll need to sign in, go through a security screen and show a form of ID, but it's quick and painless