Owning your own home

I’d buy that just for the gates.

architecturally significant houses

That seems to be a byword for less building for your koney, with inconveniently sized and shaped rooms.

Worcester Park is quite a depressing area though. Always seems to have an air of oaps / 1970s suburbia about it.

There's another modernist gem (though not for sale, unfortunately) not for away on Church Road. Not sure what happened for it to have popped up in a sea of mock-tudor, but I've always admired it from afar as my granddad lives just around the corner.

https://www.hamptons.co.uk/buy/property/­4-bedroom-detached-house-worcester-park-­kt4-ref-4824432/

Nice, but tiny. Can see why the built the thing in the garden.

Worcester Park though...

You can get architecturally interesting without going listed, which is a pain (though depends what is listed - eg interior/exterior etc).
Plus you can get a bit of extra income through use as a location.