Grand garden gate

sixthland posted a photo:

I've looked on old maps but can't find any reference to what these gates might have once belonged to. The green space has been there for over 130 years. Perhaps it was a grand house, or the entrance to the grand garden of an old estate that no longer exists. It's off Greyhound Lane in Streatham, which has been in existence since at least 1948, when there was not much else around apart from common land and farms.