Planning application
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Works: Extension
Relates to 25/P/0289/FUL
Permission granted. Work must normally begin within five years of the decision or the permission lapses.
Proposal
Non material amendments to 25/P/0289/FUL (fan house extension and associated works) relating to down pipe location and aluminium grilles changing to doors
As published by the council, reference 26/P/0138/NMA
Application record
- Reference
- 26/P/0138/NMA
- Type
- App for Non-Material Amendments
- Status
- Decided
- Decision
- Granted As published: Approve with Conditions
- Received
- 26 Mar 2026
- Validated
- 16 Apr 2026
- Decided
- 13 May 2026
- Ward
- Blaenavon
- Parish
- Blaenavon Town Council
- Decision by
- Delegated Decision
- Postcode
- NP4 9XP
Site history
Applications at this address on the Torfaen register
This site has had 27 applications since 2023: 23 approved, 0 refused.
-
26/P/0295/CND Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Discharge of Condition 2 re: 22/P/0225/FUL - BIG PIT NATIONAL COAL MUSEUM ECOLOGICAL MANAGEMENT AND ENHANCEMENT PLAN
-
26/P/0294/NMA Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Amendment of application: 22/P/0225/FUL, to change the position of the container, the colour of the container and the location of the doors on the container.
-
26/P/0296/NMA Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Non-material amendment to planning permission 25/P/0640/FUL to change the position of the ASHPs on the site and the colour of the enclosing fence
-
26/P/0268/CND Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Discharge of condition 3 (Big Pit Fixing Detail) relating to planning application 25/P/0652/LBC installation of ASHPs to serve the Pithead Baths. Proposal to include an associated enclosure and a new AHU unit.
-
26/P/0266/VAR Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Variation to Listed Building Consent 25/P/0641/LBC for alterations to the internal layout connected with the installation of ASHPs to serve the waiting room and the shop
-
26/P/0238/CND Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Discharge of condition 3 - (Biodiversity Enhancement Measures) of planning application 25/P/0289/FUL - Proposed demolition and replacement of fan house extension, new external path and associated works and repairs including vision panels, balustrade and steps, restoration of windows and RWG, new downpipe, replacing slate tiles and repointing
-
26/P/0159/CND Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Partial discharge of condition 4 (repair/replacement works) of application 25/P/0290/LBC for fan house extension and associated works, relating to evase capping
-
26/P/0158/CND Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Discharge condition 3 (level 3 survey) of application 25/P/0290/LBC for demolition and replacement of fan house extension, new external path and associated works and repairs
-
26/P/0130/LBC Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Installation of new overhead crane system to The Winding House of Big Pit National Coal Museum.
-
26/P/0127/LBC Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Installation of ASHPs to serve the Pithead Baths. To include an associated enclosure and a new AHU unit.
Timeline
Dates from the published record
-
26 Mar 2026
Received by Torfaen
-
16 Apr 2026
Validated
Checked as complete and ready for consideration.
-
13 May 2026
Decision issued: Approve with Conditions
-
28 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
25/P/0289/FUL Granted
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Proposed demolition and replacement of fan house extension, new external path and associated works and repairs including vision panels, balustrade and steps, restoration of windows and RWG, new downpipe, replacing slate tiles and repointing
Who's behind it
Company information only, from the register and Companies House
DB3 Group Agent
85 applications on PlanIndex · across 29 councils · 97% granted
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
10 documents on file for this application
- DELEGATED REPORT
- NMA APPROVAL NOTICE
- HERITAGE OFFICER - R CANNON
- APPROVED AMENDED PROPOSED FANHOUSE EXTENSION ELEVATIONS -DR-A-20703 REV C07
- APPLICATION FORM - WITHOUT PERSONAL DATA
- HOW THE FEE WAS CALCULATED
- A SUMMARY OF THE ATTACHMENTS IN THE PROPOSAL
- SUPERSEDED PROPOSED FANHOUSE EXTENSION ELEVATION DR-A-20703 REV C06
- SITE LOCATION PLAN DR-A-90001 REV C03
- ORIGINAL DECISION NOTICE 25/P/0289/FUL
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Torfaen granted permission on 13 May 2026, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.
About amendment applications
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.
Nearby applications
Within 0.3 miles
-
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Proposed demolition and replacement of fan house extension, new external path and associated works and repairs including vision panels, balustrade and steps, restoration of windows and RWG, new downpipe, replacing slate tiles and repointing
Granted Full applications Extension Demolition +1 70 docs -
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Proposed demolition and replacement of fan house extension, new external path and associated works and repairs including vision panels, balustrade and steps, restoration of windows and RWG, new downpipe, replacing slate tiles and repointing
Granted Heritage and listed buildings Extension Demolition +1 69 docs -
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Discharge condition 3 (level 3 survey) of application 25/P/0290/LBC for demolition and replacement of fan house extension, new external path and associated works and repairs
Granted Conditions Extension Demolition 7 docs -
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Partial discharge of condition 4 (repair/replacement works) of application 25/P/0290/LBC for fan house extension and associated works, relating to evase capping
Granted Conditions Extension 12 docs -
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
Partial discharge of condition 4 (repair/replacement works) of application 25/P/0290/LBC for demolition and replacement of fan house extension, new external path and associated works and repairs
Granted Conditions Extension Demolition 18 docs -
Big Pit (blaenafon) Trust Ltd Gilchrist Thomas Industrial Estate Blaenavon Torfaen NP4 9XP
90% historically approved · decision due ~5 Mar
the erection of a new minor structure to house new ventilation fans for the Big Pit and associated works.
Awaiting decision Full applications 8 docs
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