PPS 15 Planning and Flood Risk (Revised)·Page 38·6.33
Restrictions on Building Over Culverted Watercourses
There is a general presumption against erecting buildings or other structures over culverted watercourses to facilitate replacement, maintenance, and other necessary operations.
There is a general presumption against the erection of buildings or other structures over the line of a culverted watercourse in order to facilitate replacement, maintenance or other necessary operations.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/PPS 15 - Planning and Flood Risk (Revised).pdf