Today I walked around Portsea, between Gunwharf, the university and the naval base. The area has a much less genteel, more rugged feeling than Old Portsmouth but in amongst the council housing and blocks are some interesting old buildings. The area being right next to the naval base was heavily bombed in WWII and before that, the old slums and buildings were cleared. These photos largely focus on those buildings prior to 1900, including St George’s Square, Burnaby Terrace, Queens Street and Bonfire Corner, up against the barbed-wire walls. I didn’t get as far as The Hard, nor the base itself.
This page has some interesting history and photos of Portsea in the c19, including areas cleared of decaying houses.