Land Adjacent To GSK Campus Gunnels Wood Road Stevenage Herts SG1 2FX Data via plota.co.uk

26/00578/NMA - Non Material Amendment Awaiting decision

Proposal

Non Material Amendment to planning permission 25/00893/FPM for additional Substation 3 within the Detailed Area, amendments to extent of Detailed / Outline Areas and landscaping, additional Meanwhile Use / Landscape Areas and amendments to conditions Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
3 Aug 2026
Decision
Target date was 31 Aug 2026

Under consideration

No decision has been issued yet. A decision is expected by 31 Aug 2026.

Documents 39

Plans & drawings 20

PDF SEQ-HBA-S4-ZZ-DR-A-088100 SUBSTATION 3 GA PLANS Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-SW-ZZ-DR-A-080020 PARAMETER PLAN - DETAIL AND OUTLINE BOUNDARIES Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-SW-ZZ-DR-A-080021 PARAMETER PLAN - MAX DEV ZONE AND BUILDING HEIGHTS Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-SW-ZZ-DR-A-080022 ILLUSTRATIVE MASTERPLAN Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-SW-ZZ-DR-A-080023 ILLUSTRATIVE MASTERPLAN WITH PLANNING BOUNDARIES Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-SW-ZZ-DR-A-080030 ILLUSTRATIVE MASTERPLAN - PROPOSED SITE SECTIONS SHEET Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-SW-ZZ-DR-A-080100 DETAILED SITE LAYOUT PLAN Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-S4-XX-DR-A-088200 SUBSTATION 3 GA ELEVATIONS Drawings · 3 Aug 2026 View ↗ PDF SEQ-HBA-S4-XX-DR-A-088300 SUBSTATION 3 GA SECTIONS Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00001 ILLUSTRATIVE MASTERPLAN Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00100 LANDSCAPE GENERAL ARRANGEMENT PLAN Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00101 DETAILED APPLICATION AREA GENERAL ARRANGEMENT PLAN Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00110 DETALIED LANDSCAPE GENERAL ARRANGEMENT PLAN SHEET 01 Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00112 DETAILED LANDSCAPE GENERAL ARRANGEMENT PLAN SHEET 03 Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00113 DETAILED LANDSCAPE GENERAL ARRANGEMENT PLAN SHEET 04 Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00115 DETAILED LANDSCAPE GENERAL ARRANGEMENT PLAN SHEET 06 Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00116 DETAILED LANDSCAPE GENERAL ARRANGEMENT PLAN SHEET 07 Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00121 DETAILED LANDSCAPE GENERAL ARRANGEMENT PLAN SHEET 12 Drawings · 3 Aug 2026 View ↗ PDF 25021-EXA-ZZ-GF-DR-L-00122 DETAILED LANDSCAPE GENERAL ARRANGEMENT PLAN SHEET 13 Drawings · 3 Aug 2026 View ↗ PDF 260803 DOCUMENTS AND DRAWINGS SCHEDULE FINAL Supporting Documents · 3 Aug 2026 View ↗

Other documents 17

PDF SEQ-HBA-XX-XX-RP-A-080002MASTERPLAN DESIGN CODE PART1 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-HBA-XX-XX-RP-A-080002 MASTERPLAN DESIGN CODE PART2 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-HBA-XX-XX-RP-A-080002 MASTERPLAN DESIGN CODE PART3 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-HBA-XX-XX-RP-A-080003 DAS ADDENDUM PART1 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-HBA-XX-XX-RP-A-080003 DAS ADDENDUM PART2 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-HBA-XX-XX-RP-A-080003 DAS ADDENDUM PART3 Supporting Documents · 3 Aug 2026 View ↗ PDF EXA_ELEVATE QUARTER_LANDSCAPE DESIGN CODE PART A Supporting Documents · 3 Aug 2026 View ↗ PDF EXA_ELEVATE QUARTER_LANDSCAPE DESIGN CODE PART B Supporting Documents · 3 Aug 2026 View ↗ PDF J4431-SL-5101-05 - EXTERIOR LIGHTING STRATEGY UPDATE Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-CUR-XX-XX-T-C-92003_P03_PART1 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-CUR-XX-XX-T-C-92003_P03_PART2 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-CUR-XX-XX-T-C-92003_P03_PART3 Supporting Documents · 3 Aug 2026 View ↗ PDF SEQ-CUR-XX-XX-T-C-92003_P03_PART4 Supporting Documents · 3 Aug 2026 View ↗ PDF EXA_25021_NMA PLANNING ADDENDUM_COMPRESSED_PART A Supporting Documents · 3 Aug 2026 View ↗ PDF EXA_25021_NMA PLANNING ADDENDUM_COMPRESSED_PART B Supporting Documents · 3 Aug 2026 View ↗ PDF EXA_25021_NMA PLANNING ADDENDUM_COMPRESSED_PART C Supporting Documents · 3 Aug 2026 View ↗ PDF COVER LETTER Letters · 3 Aug 2026 View ↗

All documents on the council site ↗

Associated applications 5

Site constraints 4

2 Article 4 directions
Stevenage · Stevenage Bioscience Catalyst Gunnels Wood Road Stevenage SG1 2FX. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Also on the record
Radon affected area, class 2; SSSI about 482 m away: Knebworth Woods SSSI; Inside the Stevenage built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 2 November 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Stevenage
Application type
Non Material Amendment
Postcode
SG1 2FX
Received
3 Aug 2026
Validated
3 Aug 2026
Ward
Roebuck
Case officer
Show
Target decision
31 Aug 2026
Decision level
Delegated Decision

Public comments

No public comments yet.

Last counted 10 Nov 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15062805
Planning Portal ref
PP-15062805
Statutory expiry
31 Aug 2026
Env. assessment
No
Stevenage
Planning Authority Score
8.8/10
Excellent
#10 of 296 councils
Relevant to this application:
Householder decisions

Stevenage is faster than most councils at deciding householder applications, ranking #36 out of 296. Only 16% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (96%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Stevenage decision statistics
Based on MHCLG data, the year to March 2026
96%
Overall approval rate
Above avg (87%) #16 of 296
96%
Householder approved
Above avg (90%) #60 of 296
81%
Decided in 8 weeks
Above avg (63%) #36 of 296
16%
Extended time limit
Below avg (41%) #14 of 296
71%
Minor dwellings approved
14 decided (1-9 homes)
100%
Major dwellings approved
3 decided (10+ homes)
92%
Change of use approved
25 decided
253
Total decisions
11 refused in the year to March 2026