Needs survey. Unfortunately while I was visiting here at the weekend I didn't notice that it needed updating, but I did a rough edit just now. There's a sizeable new building ("The Hub") here now. Not showing up on bing yet. It has a cafe, toilets, and changing facilities on two floors. It faces onto the massive circular paddling pool complex, but not exactly sure at which orientation (otherwise I'd be tempted to stick on there as a guess position) Also I think there's a new tarmac footpath running round the east side of it all.

I think this should probably be a boundary=national_park rather than a leisure=park These boundaries have funny square shapes, but this whole area could also be ... natural=scrub or something. I don't think it should be leisure=park

Needs survey, but according to a Camden Council open dataset on polling stations, we're missing a "West Hampstead Community Centre" around here: http://harrywood.co.uk/maps/map-my-data2.html?url=https%3A%2F%2Fopendata.camden.gov.uk%2Fresource%2Ftdwv-zwut.json