PART 4Where duty to adopt does not apply
Single property exception9.
For the purposes of paragraph 18(1) or (2) of Schedule 3 a drainage system or any part of a drainage system is to be treated as designed only to provide drainage for a single property if it is designed to provide drainage for any buildings or other structures that, following completion of the construction work, will be owned, managed or controlled by—
(a)
a single person, or
(b)
two or more persons together.