Council approves 693-home expansion at Horton Heath despite flooding fears
Eastleigh Borough Council has approved 693 new homes at the One Horton Heath development, doubling its total scale to 2,500 units despite warnings over flooding risks and infrastructure strain. Residents’ objections have faded after design changes, but councillors remain divided over long-term viability.
Eastleigh Borough Council’s Horton Heath development committee voted 5-1 on Tuesday to approve plans for 693 new homes, marking the largest expansion yet at the sprawling One Horton Heath site in Fair Oak. The approval came despite fierce warnings from councillors that existing flooding risks on Burnetts Lane could worsen with additional housing. Critics argue the council lacks the capacity to manage such a large-scale project, pointing to unaddressed concerns over traffic congestion and local infrastructure.
Key Points
- ✅ 693 new homes approved, doubling the One Horton Heath development to 2,500 units
- ⚠️ Councillors warn flooding and traffic could worsen without urgent mitigation
- 💡 Resident objections dropped after design changes addressed earlier concerns
The two new schemes—424 homes in Upper Acre and 269 in Quobleigh Breach—were initially met with resistance from Barley Fields residents, who feared losing their rural views and facing increased traffic. But after revisions reduced the visual impact and adjusted road layouts, no objections were lodged during the final vote. Cllr Michelle Marsh, a Liberal Democrat representing Fair Oak and Horton Heath, praised the compromise, saying, “The fact that Barley Fields residents have dropped their complaints speaks volumes about how seriously we’ve addressed their concerns.”
| Development Site | Total Homes | Bedroom Mix |
|---|---|---|
| Upper Acre | 424 | 79 one-bed, 134 two-bed, 163 three-bed, 48 four/five-bed |
| Quobleigh Breach | 269 | Mix of one, two, three and four-bed homes |
Cllr Steve Broomfield, a Conservative councillor for the same ward, abstained from the vote, citing “huge concerns” about the project’s scale and the council’s ability to deliver necessary off-site improvements. “The traffic and demand on local facilities will be immense,” he warned, pointing to delays in upgrading key junctions like Allington Lane and Sandy Lane. His remarks followed an independent finance expert’s public statement that the council lacks confidence in managing a recent £2.8 million heating system installation for the development.
The approval arrives three months after the outline planning applications were submitted in November 2025, a period marked by initial public outcry. Residents had argued the development threatened floodplains and would overwhelm local roads. However, council officers argued that revised drainage plans and reduced building heights near Barley Fields had alleviated most risks. Construction timelines remain unconfirmed, with no start dates set for either new phase.
💡 Pro Tip
Buyers eyeing Horton Heath should request detailed flood risk assessments from developers, as local drainage systems may be pushed to capacity with further expansion.
Councillors supporting the plans emphasized the urgent need for housing in the region, with Eastleigh facing chronic shortages. “We can’t afford to stall progress,” said one Labour councillor who voted in favor. “But we must ensure these homes are safe and sustainable for the next 50 years.” The council’s planning team now faces the task of securing Section 106 agreements to fund roads, schools, and green spaces before ground is broken.
📋 By The Numbers
- 693 — New homes approved, the largest single expansion at Horton Heath
- 5 — Councillors voted in favor of the plans
- 1 — Councillor abstained due to infrastructure concerns
- £2.8 million — Cost of the heating system installation recently criticized for mismanagement