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Notification of proposed works

Here you can find helpful information for filling in the notification form for proposed plumbing works. We've also added an explanation of what works you'll need to notify us about.

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When do you need to notify us?

The plumbing work which you need to notify us in advance about is detailed below. Please note that where the installation is 2, 4(b) or 4(f), no notification is required if the work is done by an approved plumber . However, when the work is finished, a copy of the compliance certificate must be sent to the person who commissioned the work.

In the case of a Reduced Pressure Zone (RPZ) assembly, the contractor must also notify Southern Water .

  1. The erection of a building or structure not being a pond or swimming pool
  2. The extension or alteration of a water or plumbing system on any premises other than a domestic house
  3. A material change of use of the premises
  4. The installation of:
    1. A bath having a capacity, as measured to the centre line of the overflow, of more than 230 litres.
    2. A bidet with an ascending spray or flexible hose.
    3. A shower unit of a type specified by the regulator.
    4. A pump or booster drawing more than 12 litres per minute, connected directly or indirectly to a supply pipe.
    5. A unit which incorporates reverse osmosis.
    6. A water treatment unit which produces a wastewater discharge or which requires the use of water for regeneration or cleaning.
    7. An RPZ valve assembly or other mechanical device for protection against a fluid which is in Fluid Category 4 or 5.
    8. A garden watering system unless designed to be operated by hand.
    9. Any water system laid outside a building either less than 750mm or more than 1350mm below ground level (including point of entry to a premise).
  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 with water supplied by the statutory water supplier.

A guide to filling out the form

This guide details what information you'll need to provide in each section of the notification of proposed works form.

Card 1

Applicant details

The details, name, address, contact phone and email of the person making the application. These details are mandatory.
Card 2

Recipient details

Please fill in this section if the consent is to be sent to a different address than the applicant's. For instance, the owner of the installation.
Card 3

Site/location details

This includes the address of where the installation is to be located. Please supply a contact phone number so we can arrange inspections.
Card 4

Notification details

The number of water supply connections is each connection from a Southern Water main. This is likely to be one for each domestic dwelling, but there could also be several for an industrial process. 

Card 5

Plumbing details

Except for installations listed at 4(a), 4(c), 4(h) or 5, please provide plumbing details including the pipework, fittings and appliances to be installed. You also need to attach a plan or drawing showing the planned position of the proposed plumbing and fittings.
Card 6

Name of approved plumber (installer)

Plumbers registered with the Water Industry Approved Plumbers Scheme (WIAPS) have demonstrated their experience and knowledge of the regulations. They also have liability insurance cover. 

Card 7

Granting consent

Once we've received the information, we'll write to you within 10 working days. Consent will not be withheld unreasonably and may be granted with conditions, which you must follow. If we don't respond to you within 10 working days, consent is deemed to have been granted. 

Card 8

Charges

There is no charge for the consent. Southern Water does not provide a design service for plumbing works.

Steps:
1. Applicant's details
2. Site/Location details
3. Notification details - part 1
4. Notification details - part 2
5. Notification details - part 3
6. Plumbing details
7. Checklist and declaration

Applicant's details

(of persons giving notice)

Site/Location details

Location of business

Notification details - part 1

Here you need to add a detailed description of your proposed works.

Notification details - part 2

Here you need to add a detailed description of your proposed works.

Notification details - part 3

Here you need to add a detailed description of your proposed works.

Plumbing details

Except for installations listed at 4(a), 4(c), 4(h) or 5 in the accompanying notes, please provide plumbing details to include pipework, fittings and appliances to be installed. A plan or drawing showing the planned position of the proposed plumbing and fittings should also be attached below.

Checklist and declaration

I understand that the Regulations do not allow the installation of plumbing systems or water fittings which are supplied or are to be supplied with water provided by Southern Water without prior consent from Southern Water. I also understand that such installations must be carried out in accordance to the Regulations and that every water fitting must be professionally installed, connected, altered, repaired or disconnected.

Notification of proposed works

(if different to above - title and initial included)

Is the consent to be sent to a different address than the one above?*
Notification of proposed works
Is the notified work associated with the erection of new premises?*
What category is the notified work?*
Notification of proposed works
Rainwater harvesting*
Fire sprinkler system*
Alteration to an existing water system?*
Bath with a capacity greater than 230 litres?*
Pump or booster that draws more than 12 litres per minute?*
Water treatment unit?*
Garden watering system?*
Notification of proposed works
Grey water recycling*
Supply pipes less than 750mm cover*
Change of use of an existing premises?*
Bidet with a flexible hose or nozzle capable of being submerged in the bowl?*
Reverse osmosis unit?*
Are you fitting a reduced pressure zone (RPZ) valve assembly?*
Pond or swimming pool over 10,000 litres capacity?*
Notification of proposed works

(if applicable)

Notification of proposed works
Applicants should be aware that it is a criminal offence to breach these Regulations and an offence could result in prosecution.*