Foxbat - Henry Silva (1977) - Guildford Road, The Peak

This location should really have been included with this earlier post because that ost includes the viewpoint from the car parked on Guildford Road. I think at the time I was confused about the location of the fashion designer's house and neglected to see the link.

Anyway, as I have already outlined, the fashion designer's house has been tricky to find because the establishing shots were filmed on Craigmin Road, the exterior scenes were shot at Repulse Bay Road
and it appears that the interior party/dinner scenes may have been another place entirely due to the different shaped windows of the house for all the interior scenes.

This leads me to believe that they may have, possibly, been filmed at an old property called "Farnborough", once located at #1 Barker Road. It is one of the two properties that can be partially seen in my first link above and is the viewpoint from which the following screencaps were taken.

Gwulo.com mentions that this building was the original location of the German Swiss International School from 1975, so perhaps there are some alumni of this building that can remember if a film company used it for any extended period of time? Suffice to say it has since been demolished and redeveloped.