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Building & Development

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Building & Development

We provide various building and development services to help you complete your project and get you connected to the network.
Water services Wastewater services Planning your development Self-lay schemes New appointment variations

Help and resources

GetConnected Portal
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Call Developer Services on 0330 303 0119
Commercial

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Commercial

We provide a range of commercial services across our region. You can learn more and enquire about them here.
Tankered waste Business trade effiuent Standpipes Biosolids

Useful Commercial links

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Retailers

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Retailers

Here you can access all the information you need about our retailer commitment, our policies, using the retailer portal, and more.
Working with us Retail trade effluent Retailer portal help guide Saving water in your business

Useful Retailer Links

Retailer portal login
Our Region

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Our Region

Here you'll find all the latest information on what's happening in our region including our current Pathfinder projects.
Healthy rivers and seas Improvements in your area Water levels Where water comes from

Useful Region Links

Beachbuoy
Clean Rivers and Seas Task Force
Catchment First
About Us

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About Us

Here you can learn more about us and our ambitions and the people, organisations and policies that underpin our business.
Annual reporting Environmental performance Our plans Careers Get involved Corporate governance

Popular News

New solutions to storm overflows begin to take shape in Whitstable
Get tin! Southern Water’s 2023 foodbank charity campaign helps more families in need
East Sussex village goes green in search for storm overflow solutions

View all of our news

Retailer engagement policies

Information about our policies for retailers can be viewed or downloaded below.

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An aerial view of the Millbrook Water Treatment Works

RWG good practice guides

The Retailer Wholesale Group (RWG) has written Good Practice Guides for Return to Sewer Allowance, Leakage and Data Logging. If you'd like to see these, please visit the Market Operator Services Ltd (MOSL) website.

Visit the MOSL website

Filter results by:

RWG good practice adoption

Download RWG good practice adoption

Gap site incentive scheme

Download Gap site incentive scheme

Guaranteed standards scheme

Download Guaranteed standards scheme

Policy documents

Leakage good practice guide

Download Leakage good practice guide

Policy documents

Case rejection scenarios

Download Case rejection scenarios

Policy documents

Site specific arrangement

Download Site specific arrangement

Policy documents

Non-return to sewer

Download Non-return to sewer

Policy documents

Logger request application policy

Download Logger request application policy

Policy documents

Out of market settlement policy

Download Out of market settlement policy

Policy documents

Meter accuracy test policy

Download Meter accuracy test policy

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A Southern Water engineer works inside the Broadstairs Wastewater Pumping Station

Retailer trade effluent

Trade effluent is any liquid waste (effluent) discharged into our sewers from a business or industrial process.

Find out about retailer trade effluent

A close-up of a person filling a glass of water from a tap

Water metering strategy

Here, you can read more about our smart meter plan for non-household (NHH) customers. This is critical for accurate billing, consumer behaviour insight and reducing leakage.

Find out more about metering strategy

A Southern Water engineer works inside a wastewater treatment works

Water retailers

We can provide a number of services for water retailers. In this section, you can access useful information on our policies, charges, and commitments.

Find out how we serve water retailers