Planning application
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Removal of condition 33 (restriction of use as a data centre) following grant of planning permission 23/1049/OUT.
As published by the council, reference 25/1668/VOC
Application record
- Reference
- 25/1668/VOC
- Type
- Variation of Condition
- Status
- Awaiting decision
- Received
- 21 Nov 2025
- Validated
- 21 Nov 2025
- Ward
- Shenley
- Parish
- The Parish Council South Mimms And Ridge
- Postcode
- EN6 3ND
Site history
Applications at this address on the Hertsmere register
This site has had 10 applications since 2025: 2 approved, 0 refused.
-
26/1017/DOC Awaiting decision
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by condition 19 (Geotechnical submissions) of planning permission reference 23/1049/OUT.
-
26/0927/DOC Decided
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by condition 31 (Construction Environmental Management Plan) of planning permission reference 23/1049/OUT.
-
26/0926/DOC Awaiting decision
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by conditions 20 (communications strategy) of planning permission reference 23/1049/OUT.
-
26/0904/DOC Decided
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by condition 24 (Groundwater Contamination/Piling) of planning permission reference 23/1049/OUT.
-
26/0903/DOC Awaiting decision
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by conditions 17 (Construction Traffic Management Plan) and 21 (Site Waste Management Plan) of planning permission reference 23/1049/OUT.
-
26/0868/DOC Awaiting decision
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by condition 34 (Training & Employment Management Strategy) of planning permission reference 23/1049/OUT.
-
26/0573/DOC Granted
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by condition 30 (Biodiversity Net Gain Management plan) of planning permission reference 23/1049/OUT.
-
25/1502/DOC Granted
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by conditions 8 (public rights of way) of planning permission reference 23/1049/OUT.
-
25/0526/DOC Awaiting decision
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by conditions 11 (Contaminated land 1), 12 (Contaminated land 2), 22 (Groundwater Contamination Condition 3) and 23 (Groundwater Contamination Condition 4) of planning permission reference 23/1049/OUT.
Timeline
Dates from the published record
-
21 Nov 2025
Received by Hertsmere
-
24 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 16 January 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Hertsmere took a median of 58 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
- Application: 23/1049/OUT (Decided)
Who's behind it
Company information only, from the register and Companies House
Twenty5 Planning Ltd Agent, a planning consultancy registered in Cambridge
Active · incorporated 2025 · Cambridge
49 applications on PlanIndex · across 17 councils · 100% 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 recordRailway Pension Nominees Ltd Applicant, registered in London
Active · incorporated 1969 · London
4 applications on PlanIndex · across 2 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
22 documents on file for this application
- Local lead flood authority comments
- Built heritage response
- Affinity water response
- Consultee comment submitted online
- Pselsc response
- Consultee comment submitted online
- National highways comments
- Consultee comment submitted online
- Consultee comment submitted online
- Psear response
- Archaeological response
- Met office response
- Highways response
- Climate change response
- Ecology response
- Active travel england response
- Hcc growth and infrastructure comments
- Historic england response
- Heathrow airport response
- Application form redacted
- Data centre needs assessment
- South mimms planning statement
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Hertsmere for determination, against a statutory target of eight weeks. Over the last year Hertsmere decided amendment applications in a median of 72 days. More in our guide to how long planning decisions take.
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 500 metres
-
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by condition 30 (Biodiversity Net Gain Management plan) of planning permission reference 23/1049/OUT.
Granted Conditions 8 docs -
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
Application for approval of details reserved by conditions 8 (public rights of way) of planning permission reference 23/1049/OUT.
Granted Conditions 9 docs -
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
100% historically approved · decision due ~28 May
Application for approval of details reserved by conditions 11 (Contaminated land 1), 12 (Contaminated land 2), 22 (Groundwater Contamination Condition 3) and 23 (Groundwater Contamination Condition 4) of planning permission reference 23/1049/OUT.
Awaiting decision Conditions 8 docs -
Welcome Break Service Area St Albans Road South Mimms Potters Bar Hertfordshire EN6 3QQ
Installation of 6 x Electric Vehicle (EV) charging points to include 6 x dedicated EV parking bays and 6 x upright charging units to service each bay.
Granted Full applications 16 docs -
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
100% historically approved · decision due ~18 Aug
Application for approval of details reserved by condition 34 (Training & Employment Management Strategy) of planning permission reference 23/1049/OUT.
Awaiting decision Conditions 2 docs -
Charleston Paddocks St Albans Road South Mimms Potters Bar Hertfordshire EN6 3ND
100% historically approved · decision due ~16 Sep
Application for approval of details reserved by condition 19 (Geotechnical submissions) of planning permission reference 23/1049/OUT.
Awaiting decision Conditions 20 docs
Other amendment applications
In Hertsmere
-
26/0974/VOC Decided
87 Chandos Road Borehamwood Hertfordshire WD6 1UX
Variation of condition 2 (plans) to allow for reduction of the approved first floor side extension, revision to the roof design, alterations to internal floor layouts and fenestration following grant of planning permission 24/0127/HSE.
-
26/0951/VOC Decided
32 Links Drive Radlett Hertfordshire WD7 8BE
Variation of condition 2 (plans) to allow for the raising of the porch roof following the grant of planning permission reference 25/0551/VOC.
-
26/1245/VOC Awaiting decision
Elle Dani Farm Allum Lane Elstree Borehamwood Hertfordshire WD6 3NL
Variation of condition 2 (approved plans and drawings) to allow for alterations to flood wall height and roof materials; replacement of timber cladding and rear window with brick panel detail; and specification of external materials, following grant of planning permission 23/1142/FUL.
-
26/1228/VOC Awaiting decision
31 The Avenue Radlett Hertfordshire WD7 7DQ
Variation of condition 2 (plans) to allow for replacement of approved drawings following grant of planning permission reference 26/0006/HSE.
-
26/1166/VOC Awaiting decision
Wild Orchid Barnet Lane Elstree Borehamwood Hertfordshire WD6 3QZ
Variation of condition 13 (plans and drawings) to allow for amended design to enhance building external features following grant of planning permission 22/0331/FUL.