PSDS delivery against the funding window

Phase 3c delivery deadline 31 March 2026; Phase 4 delivery deadline 31 March 2028 [DESNZ]. Missing the deadline triggers clawback of unspent capital.

Oliver Wakefield-Smith
Founder · Digital Signet
Verified for Phase 4 / Phase 5 watch · refresh expected on Phase 5 window opening
Primary source · Salix Finance PSDS portal salixfinance.co.uk/PSDS last verified 22 Jun 2026

Extension grounds

Extensions are exceptional. Salix considers force-majeure (supply-chain failure, planning refusal under appeal, archaeological discovery). Routine delays do not qualify.

Evidence of spend

School-year critical path

Heat-pump retrofit on an occupied school estate has two viable windows: Christmas break and summer break. Summer is the only window long enough for full-system change-over. Major works inside term must be staged or modular.

Delivery contractors with school PSDS pipeline: Willmott Dixon, Equans, Mitie.