Naoise Ó Muirí (Dublin Bay North, Fine Gael)
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398. To ask the Minister for Housing, Planning, and Local Government if his Department has considered introducing schemes to encourage water efficiency through grey water recycling systems; and if he will make a statement on the matter. [27559/25]

James Browne (Wexford, Fianna Fail)
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Water sustainability systems (e.g. rain water recovery systems, grey water usage, etc.) are not mandatory under Part H (Drainage and Waste Water Disposal) of the Building Regulations. However, these systems are being used increasingly in homes and buildings. Accordingly, my Department has ensured that appropriate standards are referenced in Technical Guidance Document H 2010. Where works are carried out in accordance with Technical Guidance Document H, such works are considered to be, prima facie, in compliance with Part H of the Building Regulations.

My Department also publishes design guidance for local authorities - Quality Housing for Sustainable Communities – which emphasises environmental sustainability and resource efficiency. The influence of this guidance extends beyond social housing provision to provide an important reference point in promoting sustainability issues generally.