WHAT WORK NEEDS ADVANCED NOTIFICATION?

It is a legal requirement to give a water supplier advanced notification of the following:

  • The erection of any new building or structure.
  • The extension or alteration of the water system in any premises except a domestic dwelling.(1) (2)
  • The material change in use of any premises.
  • The installation of:
  • A bidet with an ascending spray or flexible hose; (1) (2)
  • A bath larger than 230 litres (measured to the centre of the overflow);
  • A shower unit of a type specified by the Regulator (Note: there are none currently specified); 
  • A pump or booster drawing more than 12 litres per minute;
  • A reverse osmosis unit;
  • A water treatment unit producing a waste water discharge or using water for regeneration or cleaning;
  • A reduced pressure zone (RPZ) valve (type BA device), or other mechanical device for protection against backflow in fluid category 4 or 5;
  • A garden watering system unless designed to be a hand-operated one; 
  • Any water system laid outside a building and either less than 750 mm or more than 1350 mm below ground level;

  • Construction of an automatically replenished pond or swimming pool of more than 10,000 litres. 

In Northern Ireland there are additional items of work which also require notification, these are:

  • In addition to a bidet, a WC with an ascending spray or flexible hose; (2)
  • A flexible shower hose or other flexible outlet for use in conjunction with a WC; (2)
  • A ‘shower-toilet’ or ‘bidet- toilet’ where, either as part of the WC itself or as an addition or adaptation of it, a stream of water is provided from below the spillover level of the WC pan for personal cleansing; (2)
  • A pump delivery pipe drawing water from a supply pipe;
  • Greywater, recycled water, reclaimed water and rainwater harvesting systems;
  • Water systems for fire fighting, including domestic sprinklers.

(1) If an Approved Contractor, such as a WIAPS, TAPS, Aplus or WaterMark or SNIPEF approved plumber is used in these circumstances, the water supplier does not need advanced notification in England, Scotland and Wales.

(2) If an Approved Contractor, such as a WIAPS, TAPS, Aplus, WaterMark or SNIPEF approved plumber is used in these circumstances, the water supplier does not need advanced notification in Northern Ireland.

We use cookies to give you the best possible experience with Water Regs UK. Some are essential to provide website functions and ensure the website is secure. We also use cookies to help us understand how people use the site and to make improvements. Click "Accept All" to enable recommended settings or click "Manage cookies" to adjust your settings. For more details, see our Cookie Policy.