Drawbridge #4, connecting from Dinas Road to the 4th apartment block.

Bus Stop for Dinas Flats.

Drawbridge #5, connecting from Dinas Road to the 5th apartment block.

A set of stairs [51°36'59.4"N 3°26'10.8"W].
Leading away from Dinas Road, 10 metres long.

There is no "gap" there. Just trees and bushes.

Park bench, at [51.59697, -3.32578].

There are stone stairs at [+51.59690, -3.32570].
However, the path trace on the map doesn't match with the measured GPS coordinate.
Someone should verify this.

Stone stairs there, [+51.59675, -3.32561].

A park bench there [51°35'48.3"N 3°19'31.7"W].

There is a park bench there.
[51°35'43.7"N 3°19'29.7"W]