Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX

This site has had 4 applications since 2025.

• 26/00576/S106 Awaiting decision

  Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX

  Request to modify the S106 Legal Agreement dated 30 May 2024 in relation to obligations (2.1.1 & 2.1.2) in relation to highways matters approved under planning permission 23/00293/FPM & 25/00893/FPM

  Submitted 3 Aug 2026
• 25/00893/FPM Decided

  Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX

  Application for Planning Permission for Development without Compliance with Conditions 1, 2, 3, 4, 8, 10, 13, 16, 19, 20, 21, 22, 23, 24, 25, 31, 32, 38, 40, 41, 42, 43, 45, 46, 49, 50, 51, 52, 53, attached to planning permission reference number 23/00293/FPM for Hybrid Planning Application for a new Life Sciences Campus comprising of Full planning permission for the demolition of existing ancillary buildings, structures, erection of employment floorspace (Classes E(g)(ii) and (iii), B2 and B8, with provision for Class E uses at ground, lower ground and upper ground/mezzanine floors) revised junction arrangement (A602 and Gunnels Wood Road) and alterations to the site layout to include new car parking (including a multi storey car park), internal access and associated works (such as new utilities (including new substations), drainage and infrastructure hard and soft landscaping and introduction of sustainable transport facilities) and Outline planning permission for the demolition of existing ancillary buildings/structures, erection of employment floorspace (Classes E(g)(i) to (iii), B2 and B8, with provision for an ancillary auditorium, and Class E uses at ground floor) and Amenity Hub (Classes E and B2), provision of car parking (including multi storey car park(s)) and associated works (such as new access, utilities, drainage, infrastructure and hard and soft landscaping), with all matters reserved for subsequent approval.

  Decided 13 Mar 2026
• 25/00803/NMA Decided

  Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX

  Non-material amendment to planning permission 23/00293/FPM comprising changes to description of development and amendments to wording of conditions 8, 10, 49, 50 and 51.

  Decided 19 Nov 2025 Amendments

1. 3 Aug 2026

   Received by Stevenage

2. 7 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Stevenage took a median of 50 days over the applications it decided in the last year.

• 25/00893/FPM Decided

  Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX

  Application for Planning Permission for Development without Compliance with Conditions 1, 2, 3, 4, 8, 10, 13, 16, 19, 20, 21, 22, 23, 24, 25, 31, 32, 38, 40, 41, 42, 43, 45, 46, 49, 50, 51, 52, 53, attached to planning permission reference number 23/00293/FPM for Hybrid Planning Application for a new Life Sciences Campus comprising of Full planning permission for the demolition of existing ancillary buildings, structures, erection of employment floorspace (Classes E(g)(ii) and (iii), B2 and B8, with provision for Class E uses at ground, lower ground and upper ground/mezzanine floors) revised junction arrangement (A602 and Gunnels Wood Road) and alterations to the site layout to include new car parking (including a multi storey car park), internal access and associated works (such as new utilities (including new substations), drainage and infrastructure hard and soft landscaping and introduction of sustainable transport facilities) and Outline planning permission for the demolition of existing ancillary buildings/structures, erection of employment floorspace (Classes E(g)(i) to (iii), B2 and B8, with provision for an ancillary auditorium, and Class E uses at ground floor) and Amenity Hub (Classes E and B2), provision of car parking (including multi storey car park(s)) and associated works (such as new access, utilities, drainage, infrastructure and hard and soft landscaping), with all matters reserved for subsequent approval.

  Decided 13 Mar 2026

This application is with Stevenage for determination, against a statutory target of eight weeks. Over the last year Stevenage decided amendment applications in a median of 16 days. More in our guide to how long planning decisions take.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• Glaxo SmithKline Research And Development Ltd Gunnels Wood Road Stevenage Herts SG1 2FX

  25/00878/AD Submitted 10 Dec 2025 50 yards away

  Installation of freestanding internally illuminated sign on concrete plinth

  Decided 10 docs

• Glaxo SmithKline Research And Development Ltd Gunnels Wood Road Stevenage Herts SG1 2FX

  25/00877/FP Submitted 10 Dec 2025 50 yards away

  Installation of freestanding internally illuminated sign on concrete plinth

  Decided Full applications 10 docs

• Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX

  26/00576/S106 Submitted 3 Aug 2026 50 yards away

  88% historically approved · decision due ~12 Oct

  Request to modify the S106 Legal Agreement dated 30 May 2024 in relation to obligations (2.1.1 & 2.1.2) in relation to highways matters approved under planning permission 23/00293/FPM & 25/00893/FPM

  Awaiting decision

• Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX

  25/00803/NMA Submitted 4 Nov 2025 50 yards away

  Non-material amendment to planning permission 23/00293/FPM comprising changes to description of development and amendments to wording of conditions 8, 10, 49, 50 and 51.

  Decided Amendments 3 docs

• Glaxo SmithKline Research And Development Ltd Gunnels Wood Road Stevenage Herts SG1 2FX

  26/00442/NMA Submitted 8 Jun 2026 50 yards away

  Non-material amendment to planning approval 23/00249/FP for minor revisions to the roof and parking layout of the security lodge

  Decided Amendments 10 docs

• Glaxo SmithKline Research And Development Ltd Gunnels Wood Road Stevenage Herts SG1 2FX

  23/00289/SCR Submitted 14 Apr 2023 50 yards away

  EIA Screening Opinion

  Decided Outline 3 docs

• 26/00762/NMA Awaiting decision

  Land Adjacent To Lanes End Todds Green Stevenage Herts SG1 2JE

  Non-material amendment to planning approval 26/00491/PIP to amend red line site boundary

  Received 22 Oct, published by the council 24 Oct 2026 Amendments
• 26/00752/NMA Awaiting decision

  224-230 Bedwell Crescent Stevenage Herts SG1 1NG

  Non-material amendment to planning permission 22/00965/FPM to enclose bin stores for plots 21-28, 39-43 and 44-49 with timber fencing and gates

  Received 14 Oct, published by the council 15 Oct 2026 Amendments
• 26/00705/NMA Decided

  Hotel Cromwell 25 - 27 High Street Stevenage Herts SG1 3AZ

  Non-material amendment to planning permission reference 25/00750/FP to install footway adjacent to the vehicular access

  Received 25 Sep, published by the council 28 Sep 2026 Amendments
• 26/00691/NMA Decided

  46 Basils Road Stevenage Herts SG1 3PX

  Non-material amendment to planning approval 25/00431/FP for external stair replacement, fenestration alterations and internal layout changes.

  Received 18 Sep, published by the council 21 Sep 2026 Amendments
• 26/00615/NMA Decided

  Maxwell Road Stevenage Herts SG1 2EW

  Non-Material amendment to planning approval 25/00400/FPM to Condition 9 (External Lighting)

  Received 18 Aug, published by the council 19 Aug 2026 Amendments