Havant Thicket Reservoir

Overview

Location

Havant, Hampshire, England

Scale / Scope

First new major UK reservoir in 30 years; concretely illustrates the PR24/AMP8 water-resilience investment programme. Reservoir shell construction has been ongoing since 2022 under separate consents; Southern Water submitted the Development Consent Order in May 2026 — DCO submitted, not yet consented, as of this cut-off (submission and examination are distinct from consent — see the country legal-framework note on the Planning Act 2008/DCO regime). Portsmouth Water holds a disputed water-rights interest, noted as an identity/interest caution, not resolved in this pass.

Project Developments

• Regulatory · 1 May 2026Southern Water submits Development Consent Order for Havant Thicket Reservoir

  Southern Water submitted the Development Consent Order application for Havant Thicket Reservoir — the first new major UK reservoir in 30 years. DCO submitted, not yet consented, as of this cut-off; reservoir shell construction has been ongoing since 2022 under separate consents.

Participants & Roles