All the roads of Wentworth Estate should be tagged as "access=permissive" for bicycles/pedestrians, instead of a mix of public and "private".
There's no-one blocking cyclists or pedestrians to use these roads.

not sure if the whole building is Tempus Wharf, or a part of it

There's a house called "Durrick" somewhere there

Cyclists and pedestrians (non-residents) now banned from using this road

is there a pond here ?

Not sure which footpaths should be tagged as "footway" or "path" here.
Some are muddy paths, and some are proper paths which can be used with a wheelchair for example.

big construction site in this area, needs to be double-checked