Your new building connection

Anyone who has a construction project to deal with is already has a lot on their plate. We assist you in this eventful phase. Our checklist shows you how to apply for your drinking and and wastewater connection, which documents you need and where you will find competent contacts.

Our tip: Apply for your building connection in good time before construction begins and allow for up to six weeks for the application to be processed.

If you need Utility information before submitting the application, you can request it from us or request it via the online infrastructure / public utilities portal The Utility Information provides important information about the location of the networks for customers who are planning construction projects.

Just a few steps away from a drinking water connection

As the builder-owner of a building, you must ensure that your building is connected to the drinking water network and the sewer system of Berliner Wasserbetriebe. Our video shows you step-by-step how to get your new drinking water connection.

One property - one connection

Each property is supplied via one building connection with one water meter. If several properties are located one behind the other and are not located directly adjacent to a supply pipe, one joint supply pipe is also possible.

Your property - your pipe

The part of the pipe from the property boundary up to the water meter belongs to you.. You bear the costs for its maintenance and repair. The part of the pipe from the supply pipe (water main) in the road up to the property boundary and the water meter are the property of Berliner Wasserbetriebe, which is also responsible for the maintenance of this part.

Best water through tested pipes

Plastic pipes made of polyethylene (PE-HD) are used for building connection pipes with a diameter from 32 to 50 mm. Pipes made of modern cast iron are used for diameters of 80 mm and larger.

The connection by a professional

All work on the building connection is carried out by us or our contractors. The same applies to work on your installation downstream of the water meter: Only companies included in the installer list of Berliner Wasserbetriebe may work on your building installation. This is done to protect drinking water as a food.

These and other provisions are compiled in detail in the “Terms and Conditions of Contract for the Berlin Water Supply" (WT&Cs).

Sewage connection

Our checklist helps you to apply to us for a wastewater connection, i.e. a sanitary wastewater and/or rainwater building connection.

Our tip: Apply for your wastewater connection in good time before construction begins and allow for up to six weeks for the application to be processed. Also find out early about the conditions for  Rainwater discharge. This is because drainage is now only possible to a highly limited extent. The discharge limits of the State of Berlin as well as the capacity of the sewers are decisive. The surface water arising on your property should be managed on site. Information on all aspects of decentralised, on-plot rainwater management can be found here as well as on the site of Berlin’s Rainwater Agency.

We provide you with all the application documents necessary to connect to our drainage network. Please fill them out, print them and submit them to us all together with the following documents:

  • Proof of ownership (purchase contract, priority notice of conveyance or land register excerpt)
  • Authorisation of the property owner (if the applicant is not the owner)
  • Copy of the official site plan with details of the required location of the access fittings in scale 1:200

Utility Information

With the Utility Information we provide customers who are planning construction projects important information about the location of the networks. In specific terms, this means that you can receive site plans of water water pipes, sewers, wastewater pressure pipes and their building connections through the Berliner Wasserbetriebe Utility Information.

Standard information

Information medium: In case of standard information, a PDF file is generated automatically.
Scale: The excerpt is output in scale 1:500

Online information

Utility information is provided by the internet portal “infrest-Infrastruktur eStraße”. Through this portal, companies and private persons can obtain pipe and cable information from all network operators or apply for Utility Information on the networks of Berliner Wasserbetriebe.

Construction site water

Construction site water is drinking water that we provide solely for construction purposes. For this purpose, we will be pleased to set up a construction site water connection for you. After you have submitted your application, we check your local circumstances. The installation is then carried out by one of our skilled and experienced pipe network operations centres.

If it is not possible to lay a construction site connection, you can ask us to supply a standpipe. We will be pleased to advise you about other supply options.

Please note:
The price of a construction site water connection includes the costs for the provision and installation of the connection, however, not for making the connection to the water supply pipe.

Inspection of house connections

Discharge obstructions occur on your premises or you want to modernise your building? We will be pleased to check the serviceability of your building connection. This is because building connection sewers in a serviceable condition ensure trouble-free drainage of your wastewater.


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