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Planning application

Walnut Farm Science Park Lockgate Road Sidlesham West Sussex

Granted South Downs National Park 26/01035/FUL Full Application

Works: Demolition

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Demolition of existing lean-to building and construction of replacement building within Class E(g) use (office, research, and development and light industry)

As published by the council, reference 26/01035/FUL

Application record

Reference
26/01035/FUL
Type
Full Application
Status
Permit
Decision
Granted As published: PERMIT
Received
8 May 2026
Validated
15 May 2026
Decided
9 Jul 2026
Ward
Sidlesham With Selsey North
Parish
Sidlesham
Decision by
Delegated

Timeline

Dates from the published record

  1. 8 May 2026

    Received by South Downs National Park

  2. 15 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 9 Jul 2026

    Decision issued: PERMIT

  4. 27 Jul 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

12 documents on file for this application

  • AGENT AGREEMENT TO AMMEND DESCRIPTION Correspondence · 24 Jun 2026
  • CDC ECONOMIC DEVELOPMENT Consultee Comment · 19 Jun 2026
  • CDC ENVIRONMENTAL HEALTH Consultee Comment · 18 Jun 2026
  • HIGHWAYS COMMENTS Consultee Comment · 17 Jun 2026
  • HABITAT REGULATION ASSESSMENT Application Documents · 12 Jun 2026
  • SIDLESHAM PARISH COUNCI COMMENTS Parish Comments · 11 Jun 2026
  • DRAINAGE AND NOISE ASSESSMENT Application Documents · 22 May 2026
  • APPLICATION FORM Application Form · 08 May 2026
  • LOCATION AND BLOCK PLAN Plan - Decided · 08 May 2026
  • EXISTING AND PROPOSED GROUND FLOOR PLAN AND ELEVATIONS Plan - Decided · 08 May 2026
  • PLANNING STATEMENT Application Documents · 08 May 2026
  • FLOOD RISK ASSESSMENT Application Documents · 08 May 2026

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What this grant of permission means

South Downs National Park granted permission on 9 July 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

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