I think 'patrimoine' is heritage: that which we inherit from our ancestprs, are custodians of for a while, and then hand it down to our descendents. Here in Sydney our patrimoine includes the bridge, the opera house, and the harbour.
Much of our harbour foreshore is either military land, or national park. However, there is a fair bit that is residential. Until recently, most of South Head was off limits. Some still is because there is a naval base there. North Head is part of a national park.
On New Year's Day, I walked around South Head. From Camp Cove, I joined up with the South Head Heritage Trail. A stunning walk, on a gorgeous day. The house here was the residence of the light-house keeper of the Hornby Light, erected after the 'Dunbar' shipwreck in 1857. There are a number of old fortifications from our need to defend ourselves from marauders way down here at the arse-end of the world: the French, and the Russians primarily. The view from North Head is even more stunning, in my opinion.