The UK Government has announced new water-saving measures aimed at removing barriers to housing development in areas of water scarcity.
The proposed changes to Building Regulations, which have been published by Defra in a new consultation, could unlock thousands of stalled housing projects where water demand has previously outstripped supply.
Natalia Sokolov, Partner in Thrings’ Construction and Engineering team, discusses the proposed changes and their likely impacts on developers.
What would change for developers?
The government’s proposed changes to Building Regulations (Part G2) aim to remove water scarcity as a barrier to development by strengthening the water efficiency standards and mandating more efficient water use in new homes.
In parallel with the Building Regulations consultation, the government has also announced plans to build nine new reservoirs to address water supply constraints. This initiative is separate but complementary, forming a two-pronged strategy to tackle the supply and demand sides of water scarcity and help to unlock housing development in water-stressed regions.
For developers, this means:
- Unlocking stalled planning applications in areas such as Cambridge and North Sussex, where water demand has previously blocked housing schemes;
- Designing homes to meet tighter water efficiency standards, with a proposed reduction from 125 litres per person per day to 105 litres - and even lower under optional technical standards;
- Incorporating water-saving technologies such as aerated taps, dual flush toilets, and efficient showerheads as standard;
- Preparing for future innovations, including rainwater harvesting and greywater reuse - the recycling of water from showers and sinks for non-drinking uses - which are being explored in a parallel call for evidence.
These changes are expected to unlock thousands of new homes and support the government’s target of building 1.5million homes by 2030, while promoting more sustainable development practices and supporting UK’s net zero and environmental goals.
Next steps for developers
To have your say on the proposals, respond to the consultation survey by 16 December 2025. Engaging early and adapting design strategies will better position developers to benefit from any resulting changes and avoid future planning delays.
Developers may also wish to:
- Review current and upcoming projects for compliance with proposed water efficiency standards;
- Engage with the consultation to help shape practical and commercially viable regulations;
- Consider integrating water reuse systems and other innovations to stay ahead of future requirements;
- Collaborate with planning consultants and legal advisors to navigate any changes to infrastructure agreements or planning conditions.
Natalia Sokolov, Partner in Thrings’ Construction and Engineering team, said: “These proposed changes are a welcome step forward in tackling one of the less visible but increasingly critical barriers to development. Water scarcity has quietly stalled projects across the country, and this consultation offers a practical route to unlocking land and delivering much-needed housing.
“Developers should be proactive in engaging with the consultation and preparing for the likely shift in design standards. It’s also an opportunity to demonstrate leadership in sustainable development and environmental stewardship".
“These changes reflect a growing need to design ‘water smart’ homes - a goal long pursued by housebuilders, now being reinforced by updated and streamlined regulations".
Thrings’ Development of Land sector draws on expertise from across the firm, including specialists in its Planning and Environment, Construction and Engineering and Commercial Property teams to advise clients in all aspects of the built environment, working with landowners, developers, planners and construction businesses. To find out how they can assist in the success of your land project or development get in touch.
