Also, in case anyone is interested regarding the broadband situation. I have been in touch with Hyperoptic and there are no plans to rollout service to Chobham Manor.
The reason for this is that the development is signed up to the "Independent Fibre Networks" infrastructure by GTC utilities which means very few other providers will be able to gain access. There are a few different FTTH (fibre to the home) suppliers with slightly different speed levels and pricing: https://www.ifnl.net/availableisps
SeeTheLight seems to be offering the best overall speed plans at a reasonable price but it depends what actual service quality, speeds and latency are like. Would be good to hear what current residents think of the broadband service?