TONBRIDGE, England, April 2, 2026, 14:06 BST
- Tonbridge and Malling now says applicants must address water capacity in planning applications, and some schemes already approved in principle are being re-examined. 1
- South East Water told local politicians it could supply 6,318 extra homes by 2042, far below roughly 19,700 homes in the borough’s draft plan. 2
- Ofwat is consulting on a proposed £22 million penalty over earlier failures affecting more than 286,000 people, while a separate probe is examining the winter outages. 3
South East Water’s repeated outages are spilling into West Kent’s housing pipeline and property market, with Tonbridge and Malling Borough Council now telling applicants to prove water capacity and the Telegraph reporting on Thursday that one Kent retiree had put off downsizing after repeated supply failures. The dispute is no longer just about taps running dry; it is beginning to shape what councils can approve and when people feel able to move. 1
The timing matters because local authorities are trying to push ahead with housebuilding while the utility says it cannot support growth above what was built into its current water blueprint. Ofwat is also consulting on a proposed £22 million penalty over earlier supply failures, and ministers say they are exploring short-term steps to keep planning applications moving. 1
A planning report for a 17-home scheme in Hadlow, dated April 1, said the application had been sent back to committee because South East Water’s comments on capacity had become a material planning consideration — in plain terms, something councillors now must weigh before granting permission. The borough says new applications, and some schemes already cleared in principle, will need to show that adequate water infrastructure exists or can be delivered in time. 4
In a Westminster Hall debate on March 24, Conservative MP Tom Tugendhat said South East Water had told Tonbridge and Malling it could supply only 6,318 additional homes between now and 2042. That compares with roughly 19,700 homes in the borough’s draft local plan, turning a utility constraint into a live question for the government’s housing push in Kent. 2
South East Water has not said the extra homes can never be served, but it says its current Water Resources Management Plan — its five-year supply blueprint — was built on earlier housing numbers. Nick Price, the company’s head of water resources, said the present plan does not identify enough “water supply headroom”, or spare supply capacity, for the level of growth now proposed and said the next plan, due in 2029, will use updated forecasts. 5
The fallout is reaching beyond developers. The Telegraph reported on Thursday that Kent retiree Gill Knox said repeated outages had stopped her selling and downsizing, and that South East Water had offered £325 in compensation, which she rejected. ITV reported on Tuesday that Skinners’ Kent Academy in Tunbridge Wells says it is still owed about £30,000, with 16 schools having asked Kent County Council to help recover compensation. 6
Ofwat said in March that a proposed £22 million penalty, now out to consultation until April 13, reflected supply failures between 2020 and 2023 that hit more than 286,000 people, and interim chief executive Chris Walters said South East Water’s “significant failings caused major disruption”. The regulator has separately opened an investigation into the December 2025 and January 2026 outages, which South East Water said at one stage left 30,000 customers without water or with low pressure. 3
That has sharpened a political split over what should happen next. Mike Martin, the Liberal Democrat MP for Tunbridge Wells, has asked Ofwat to waive the penalty and replace it with a compulsory investment plan to strengthen the Pembury treatment works, which he called a “single point of failure” in the local network. 7
South East Water says it has already started a six-month resilience programme. In an update on March 18, the company said shareholder-backed engineering works and operating changes were under way to cut the risk of outages in Tunbridge Wells, Maidstone, Canterbury and Whitstable, East Grinstead and Crowborough, and that an independent review of the Pembury incident would report in April. Chief executive David Hinton said the company was “urgently reducing our risk of supply interruptions”. 8
But there is still a risk the repair plan arrives too slowly for the planning cycle. Officials told Parliament they are exploring short-term interventions to move planning applications and local plan work forward, and the government’s water delivery taskforce says it has already helped unblock 10,000 homes in places including Oxford, Cambridgeshire and north Sussex. Even so, South East Water’s next full planning cycle is not due until 2029, leaving councils and developers to argue case by case over whether enough water can be supplied now. 9
For households and builders in West Kent, the row over South East Water is now running on two tracks at once: the immediate question of service and compensation, and the slower question of whether the network can support the next wave of homes. Until regulators, ministers and the company settle that, water will remain a brake on both development and ordinary moves. 10
