Normally Hyperoptic is only rolled out to blocks of flats, this is because it's cost effective and easy to run a single fibre into a building, whack a metro-ethernet switch in the basement - then use existing structured cabling to run connections to the end user.
I'd be *amazed* if Hyperoptic would run fibre (or even copper) to individual houses, because it would cost them a fortune in dig costs - and as a designer for a large ISP, I can tell you there is absolutely no appetite for digging up roads these days.
AFAIK, it's basically reserved for specific flats/blocks where most of the work has been done already,
Just to annoy the hell out of you:
As I said our development has fibre/cable ducting already installed under the tarmac and to all the houses. When our side of the development was complete Virgin Media blew through cable and we got that installed so I don't think any digging would be required. The channels/ducting are already installed and open to all (BT have since used it also).
However I think you're right in that Hyperoptic wouldn't consider it when there are so many blocks of flats close to the city centre.