Planning application
National Grid Blyth Sub Station Cambois Northumberland
Works: Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Notification of prior approval for the design and external appearance of a Portable Relay Room under the Town and Country Planning (General Permitted Development) (England) Order 2025 - Blyth Substation Extension Phase 1.
As published by the council, reference 26/02700/PA
Application record
- Reference
- 26/02700/PA
- Type
- GPDO Prior Notification
- Status
- Permitted
- Decision
- Prior Approval req and Granted
- Received
- 28 Jul 2026
- Validated
- 28 Jul 2026
- Decided
- 10 Sep 2026
- Ward
- Sleekburn
- Parish
- East Bedlington
- Decision by
- Delegated Decision
Site history
Applications at this address on the Northumberland National Park register
This site has had 5 applications since 2026: 2 approved, 0 refused.
-
26/02633/REG Granted
National Grid Blyth Sub Station Cambois Northumberland
Application for approval under Regulation 77 of the Conservation of Habitats and Species Regulations 2017 - Blyth Substation Extension Phase 1
-
26/01496/REG Awaiting decision
National Grid Blyth Sub Station Cambois Northumberland
Application for approval under Section 77 of the Conservation of Habitats and Species Regulations 2017. Blyth Phase 1 extension ground investigations. Part 2 All remaining ground investigations for Blyth Phase 1 extension.
-
26/01173/REG Awaiting decision
National Grid Blyth Sub Station Cambois Northumberland
Application for approval under Regulation 77 of the Conservation of Habitats and Species Regulations 2017. Blyth Phase 1 extension ground investigations.
-
26/00825/SCREEN Awaiting decision
National Grid Blyth Sub Station Cambois Northumberland
Screening opinion for a proposed new, outdoor 400 kilovolt (kV) Air Insulated Switchgear (AIS) extension to the existing Blyth 400 kV Outdoor Substation
Timeline
Dates from the published record
-
28 Jul 2026
Received by Northumberland National Park
-
3 Aug 2026
Added to PlanIndex
-
10 Sep 2026
Decision issued: Prior Approval req and Granted
Who's behind it
Company information only, from the register and Companies House
AECOM Infrastructure & Environment UK Limited Agent, registered in London
Active · incorporated 1966 · London
7 applications on PlanIndex · across 3 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
13 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Northumberland National Park granted permission on 10 September 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 prior approval applications
Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
National Grid Blyth Sub Station Cambois Northumberland
90% historically approved · decision due ~30 Apr
Screening opinion for a proposed new, outdoor 400 kilovolt (kV) Air Insulated Switchgear (AIS) extension to the existing Blyth 400 kV Outdoor Substation
Awaiting decision Outline Extension 4 docs -
National Grid Blyth Sub Station Cambois Northumberland
Application for approval under Regulation 77 of the Conservation of Habitats and Species Regulations 2017 - Blyth Substation Extension Phase 1
Granted Extension 18 docs -
Land South Of Blyth Powerstation Bedlington Northumberland NE22 7BG
87% historically approved · decision due ~2 Oct
Development of electricity transmission infrastructure comprising a portable relay room, erection of 2.4m high palisade with 4m high electric backing, cable sealing end and other ancillary development.
Awaiting decision Full applications 28 docs -
National Grid Blyth Sub Station Cambois Northumberland
90% historically approved · decision due ~23 Jun
Application for approval under Section 77 of the Conservation of Habitats and Species Regulations 2017. Blyth Phase 1 extension ground investigations. Part 2 All remaining ground investigations for Blyth Phase 1 extension.
Awaiting decision Extension 4 docs -
JDR Cable Systems Ltd Unit 1 Northumberland Energy Park East Sleekburn Bedlington Northumberland NE22 7FJ
78% historically approved · decision due ~6 Mar
Discharge of conditions 27 (Delivery, Refuse and Servicing Strategy) on approved application 24/01555/VARYCO
Awaiting decision Conditions 3 docs -
Land South Of Blyth Powerstation Bedlington Northumberland NE22 7BG
87% historically approved · decision due ~2 Oct
Development of electricity transmission infrastructure comprising a portable relay room, erection of 2.4m high palisade with 4m high electric backing, cable sealing end and other ancillary development.
Awaiting decision Full applications 27 docs
Other prior approval applications
In Northumberland National Park
-
26/03238/HPA Awaiting decision
9 York Crescent Alnwick Northumberland NE66 1RL
Notification of Prior Approval: Erection of a single-storey rear kitchen/dining extension with a grp flat roof, including 2no. flat glass skylights. Total projection from rear wall of the original dwellinghouse 3.60m, with maximum height of 3.00m and height to the eaves of 3.00m
-
26/02754/HPA Granted
9 Crompton Street Blyth Northumberland NE24 3UP
Notification of Prior Approval: Erection of single storey rear extension - total projection from rear wall of the original dwellinghouse 4.5m with maximum height of 3.80m and height to eaves of 2.40m
-
26/03116/ROAD Awaiting decision
Land North East Of Hells Bottom The Forks To High Long House Kielder Northumberland
Notification of prior approval for road which will connect existing forest roads allowing for more efficient movement of machinery and transport vehicles through the site
-
26/02493/AGTRES Granted
Land At North Of Maidens Hall Pigdon Northumberland
Notification of Prior Approval for change of use from agricultural building into 2 no. dwellings
-
26/03108/ROAD Awaiting decision
Bythorne Farm Wylam Tynedale District Wylam Northumberland
Notification of Prior Approval to provide an agricultural access route between the public highway and the farm steading, reducing reliance on the existing constrained access arrangement to the east of Wylam.