Connection Charges

For all connection applications received by Irish Water on or after the 1 April 2019, Irish Water is implementing a Connection Charging Policy.

The provision of connections requires the payment of certain costs and fees by the customer, as approved by the Commission for Regulation of Utilities (CRU) in Ireland.

As such, Irish Water has implemented a Connection Charging Policy. This policy provides a standard set of charges for connections to Irish Water’s water and wastewater networks. It also provides a single, clear, transparent and fair connection charging framework. The charges are calculated in a cost-reflective manner, based on connection type.

Standard connection charges will apply to the majority of customers and Irish Water will provide a full connection service to a customer’s boundary, where all components of the connection works are performed by Irish Water.

The charges can be viewed in the Irish Water Charges Plan and also on the CRU website.


Standard connection charges

These charges are based on standard parameters. Requirements in excess of the standard parameters may incur additional charges. Please see the Connection Charging Policy document for further details. Please also see worked examples of connection charges for typical connections.

* Domestic Development and apartments with multiple units will incur the charge per each individual unit per application.

Water – Connection infrastructure up to 10 metres

CategoryService Pipe Size (mm)Connection Charge (€)
Single Domestic (1 Unit) 25 2,272
Domestic Development (2 - 5 Units)* Dependent on number of Units 2,272
Domestic Development (6- 100 Units)* Dependent on number of Units 1,848
Domestic Development (>100 Units)* Dependent on number of Units 1,708
Non Domestic Small 1 25 2,272
Non Domestic Small 2 32 8,781
Non Domestic Medium 1 50 19,371
Non Domestic Medium 2 80 29,645
Non Domestic Medium 3 100 46,179
Non Domestic Medium 4 150 83,900
Non Domestic Medium 5 200 149,692
Non Domestic Large 1 250 Quotable
Non Domestic Large 2 300 Quotable
Non Domestic Large 3 350 Quotable

Wastewater – Connection infrastructure up to 10 metres

CategoryService Pipe Size (mm)Connection Charge (€)
Single Domestic (1 Unit) 100 3,929
Domestic Development (2 - 5 Units)* Dependent on number of Units 3,929
Domestic Development (6- 100 Units)* Dependent on number of Units 3,499
Domestic Development (>100 Units)* Dependent on number of Units 3,381
Non Domestic Small 100 3,929
Non Domestic Medium 1 150 23,344
Non Domestic Medium 2 225 226,571
Non Domestic Large 1 300 Quotable
Non Domestic Large 2 375 Quotable
Non Domestic Large 3 450 Quotable

These charges are based on Connection Infrastructure of up to 10 metres in length. Infrastructure in excess of this will incur additional quotable charges. The charges assume a gravity pipe connection, for non gravity pipe connections additional charges may apply. Please see the Connection Charging Policy document for further details. Please also see worked examples of connection charges for typical connections.

* Domestic Development and apartments with multiple units will incur the charge per each individual unit per application.
For information on applications submitted prior to the implementation of the Connection Charges Policy, please view our FAQ page.

In excess of 10 metres, less than 15 metres

Service Connection Infrastructure

Per Metre Charge (€)

Water (25mm pipe diameter)

358

Wastewater (100mm pipe diameter)

442

In excess of 15 metres

Any service connection Infrastructure that exceeds 15 metres in total length will be liable for the following: 

  • The Standard Connection Charge (that includes the provision of Service Connection Infrastructure of 10m in length)
  • The Standard Charge for each additional metre of Service Connection Infrastructure (that exceeds 10m in length, up to a maximum of 15 metres)
  • Quotable Charges for each metre of Service Connection Infrastructure that exceeds 15 metres in length

Self-lay surety

Only applicable to domestic housing developments

The self-lay connection agreement sets out the basis of the customer’s contractual agreement with Irish Water for the provision of services. The agreement provides for the vesting in Irish Water of water and wastewater services infrastructure installed by a customer, following quality assurance of the self-lay works and connection to the Irish Water network(s). It includes the provision of financial security to Irish Water (the Self-Lay Financial Security Arrangements) in certain circumstances.

As part of the Connection Charging Policy, a refundable financial security will be required per unit in a self-lay development. This will mitigate risk of asset defects and risk exposure where sub-standard work has been performed. This is applicable where the local infrastructure is provided by the customer and where a self-lay agreement is in place requiring the vesting of the infrastructure in Irish Water. The surety required is outlined below and will apply to all applications submitted on or after 1st April 2019. The surety will apply to each unit within an application.

Standard Residential Connection 

Apartment and Duplex

€1,125 per unit for water and wastewater 

€750 per unit for water and wastewater

€562 per unit for one service

€375 per unit for one service

In addition to the risk exposures outlined above for the water and wastewater infrastructure, there is an additional risk exposure for pump stations (this includes other stand-alone infrastructure facilities) in a development. The financial security relating to this is outlined below:

  • Up to 40% of the total cost of the pump station or stand alone infrastructure for the duration of the Defects Liability Period and/or
  • Up to 100% of the annual estimates cost of operation and maintenance of these facilities for the duration of the Defects Liability Period

This financial security will be required in addition to the full connection payment and signed counterpart in order for a connection to progress. Upon completion of the defects liability period the surety will be released in line with the Irish Water Financial Security Policy.