Notification of proposed works

Categories of work which require notification of proposed work:

 1. The erection of a building or other structure, not being a pond or swimming pool.

  2. The extension or alteration of a water system on any premises other than a house*.

  3. A material change of use of any premises.

4. The installation of - 

(a) a bath having a capacity, as measured to the centre line of overflow, of more than 230 litres;
(b) bidet with an ascending spray or flexible hose*;
(c) a shower unit with more than one showerhead within a single unit, not being a drench shower installed for reasons of safety or health, connected directly or indirectly to a supply pipe;
(d) a pump or booster drawing more than 12 litres per minute, connected directly or indirectly to a supply pipe;
(e) a unit which incorporates reverse osmosis;
(f) a water treatment unit which produces a waste water discharge or which requires the use of water for regeneration or cleaning;
(g) a reduced pressure zone valve assembly or other mechanical device for protection against a fluid which is in fluid category 4 or 5*; (Please see our factsheet)
(h) a garden watering system unless designed to be operated by hand; or
(i) any water system laid outside a building and either less than 750mm or more than 1350mm below ground level.

 5. The construction of a pond or swimming pool with a capacity greater than 10,000 litres which is designed to be replenished by automatic means and is to be filled with water supplied by a water undertaker.