Planning application
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Application for the approval of reserved matters relating to site-wide advanced infrastructure and enabling works (Phase 1a), including a permanent vehicular access off Swanland Road which will facilitate a temporary access during construction, a permanent emergency vehicle access off Bridgefoot Lane, pedestrian and cycle routes, internal roads, car and cycle parking, hard and soft landscaping, on-site water attenuation, temporary and permanent campus bridges, utilities and services, a security gatehouse, substations, ancillary buildings and service yards, the creation of development platforms to support the phased data centre development, and all associated infrastructure pursuant to outline planning permission reference 24/1152/OUTEI.
As published by the council, reference 26/1187/REM
Application record
- Reference
- 26/1187/REM
- Type
- Reserved Matters Application
- Status
- Awaiting decision
- Received
- 17 Aug 2026
- Validated
- 17 Aug 2026
- Ward
- Potters Bar Furzefield
- Parish
- No Parish
Site history
Applications at this address on the Hertsmere register
This site has had 20 applications since 2026: 2 approved, 0 refused.
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26/1188/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by conditions 25 (highways) and 28 (cycle parking) of planning permission reference 24/1152/OUTEI.
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26/1189/ADV Decided
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Erection of 2x community notice boards providing information regarding the LDC1 project and updates of the phased delivery of the approved data centre campus (Application for advertisement consent).
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26/1175/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by conditions 4 (surface water drainage scheme), 8 (updated detailed layout drawings), 35 (drainage details), 47 (Flood Risk Assessment) and 52 (capacity for foul water) of planning permission reference 24/1152/OUTEI.
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26/1184/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by conditions 23 (partial) (soft landscaping scheme) and 43 (strategic landscaping scheme along northern and eastern boundaries) of planning permission reference 24/1152/OUTEI.
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26/1169/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by condition 54 (district heating network feasibility study) of planning permission reference 24/1152/OUTEI.
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26/1168/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by condition 55 (protected species survey) of planning permission reference 24/1152/OUTEI.
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26/1170/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by conditions 37 (geotechnical submissions) and 38 (communications strategy plan) of planning permission reference 24/1152/OUTEI.
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26/1174/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by condition 10 (excavations penetration) of planning permission reference 24/1152/OUTEI.
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26/1173/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by conditions 13 (Site Waste Management Plan (SWMP)), 19 (Construction Environmental Management Plan (CEMP)), 20 (Risk Assessment and Dust Management Plan), and 29 (Construction Management Plan) of planning permission reference 24/1152/OUTEI.
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26/1185/DOC Awaiting decision
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by condition 9 (temporary drainage scheme) of planning permission reference 24/1152/OUTEI.
Timeline
Dates from the published record
-
17 Aug 2026
Received by Hertsmere
-
1 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 12 October 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 57 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
- Application: 24/1152/OUTEI (Decided)
Who's behind it
Company information only, from the register and Companies House
David Lock Associates Ltd Agent, registered in Milton Keynes
Active · incorporated 1989 · Milton Keynes
389 applications on PlanIndex · across 32 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 recordDocuments
Plans, drawings, consultee responses and the officer's report
121 documents on file for this application
- Ldc1 phase 1a (site wide infrastructure) rma planning statement inc. sci
- Applicationformredacted
- Phase 1a site location plan-p01
- Air quality assessment-p01
- Ldc1 phase 1a landscape outline specification-p
- Ldc1 phase 1a schedule of plants sheet 2-p01
- Ldc1 phase 1a schedule of plants sheet 1-p01
- Ldc1 phase 1a landscape sections sheet 6-p01
- Ldc1 phase 1a details soft landscape sheet 2-p0
- Ldc1 phase 1a landscape retaining walls elevati
- Ldc1 phase 1a details soft landscape sheet 3-p0
- Ldc1 phase 1a landscape sections sheet 3-p01
- Ldc1 phase 1a details soft landscape sheet 1-p0
- Ldc1 phase 1a landscape sections sheet 2-p01
- Ldc1 phase 1a landscape sections sheet 1-p01
- Ldc1 phase 1a soft landscape sheet 31-p01
- Ldc1 phase 1a soft landscape sheet 32-p01
- Ldc1 phase 1a soft landscape sheet 30-p01
- Ldc1 phase 1a soft landscape sheet 29-p01
- Ldc1 phase 1a soft landscape sheet 28-p01
- Ldc1 phase 1a soft landscape sheet 26-p01
- Ldc1 phase 1a soft landscape sheet 27-p01
- Ldc1 phase 1a soft landscape sheet 25-p01
- Ldc1 phase 1a soft landscape sheet 24-p01
- Ldc1 phase 1a soft landscape sheet 20-p01
- Ldc1 phase 1a soft landscape sheet 23-p01
- Ldc1 phase 1a soft landscape sheet 21-p01
- Ldc1 phase 1a soft landscape sheet 22-p01
- Ldc1 phase 1a soft landscape sheet 19-p01
- Ldc1 phase 1a soft landscape sheet 17-p01
- Ldc1 phase 1a soft landscape sheet 18-p01
- Ldc1 phase 1a soft landscape sheet 16-p01
- Ldc1 phase 1a soft landscape sheet 15-p01
- Ldc1 phase 1a soft landscape sheet 14-p01
- Ldc1 phase 1a soft landscape sheet 13-p01
- Ldc1 phase 1a soft landscape sheet 11-p01
- Ldc1 phase 1a soft landscape sheet 9-p01
- Ldc1 phase 1a soft landscape sheet 7-p01
- Ldc1 phase 1a soft landscape sheet 12-p01
- Ldc1 phase 1a soft landscape sheet 10-p01
- Ldc1 phase 1a soft landscape sheet 8-p01
- Ldc1 phase 1a soft landscape sheet 6-p01
- Ldc1 phase 1a tree protection and removal plan-
- Ldc1 phase 1a soft landscape sheet 5-p01
- Ldc1 phase 1a soft landscape sheet 4-p01
- Ldc1 phase 1a soft landscape general-p01
- Ldc1 phase 1a soft landscape sheet 3-p01
- Ldc1 phase 1a soft landscape sheet 2-p01
- Ldc1 phase 1a soft landscape sheet 1-p01
- Ldc1 phase 1a landscape architecture general ar
- Ldc1 phase 1a sitewide parking plan-p01
- Ldc1 phase 1a sitewide levels plan
- Ldc1 phase 1a sitewide combined utilities plan-
- Ldc1 phase 1a bentley heath brook east bridge _
- Ldc1 phase 1a retaining wall site plan south _p
- Ldc1 phase 1a retaining wall site plan north _p
- Ldc1 phase 1a bentley heath brook west bridge _
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a mimmshall brook bridge _p01
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a swanland road site entrance and
- Ldc1 phase 1a detailed levels plan sheet 8
- Ldc1 phase 1a detailed levels plan sheet 9-p01
- Ldc1 phase 1a detailed levels plan sheet 7-p01
- Ldc1 phase 1a detailed levels plan sheet 6-p01
- Ldc1 phase 1a detailed levels plan sheet 5-p01
- Ldc1 phase 1a overall site sections 02-p01
- Ldc1 phase 1a detailed levels plan sheet 4-p01
- Ldc1 phase 1a detailed levels plan sheet 3-p01
- Ldc1 phase 1a detailed levels plan sheet 2-p01
- Ldc1 phase 1a proposed facade finishes-p01
- Ldc1 phase 1a detailed levels plan sheet 1-p01
- Ldc1 phase 1a ancillary substation & ict compou
- Ldc1 phase 1a main substation elevations & sect
- Ldc1 phase 1a facility maintenance compound dra
- Ldc1 phase 1a gate house plans, sections & elev
- Ldc1 phase 1a main substation floor plans-p01
- Ldc1 phase 1a general arrangement plan (zone c
- Ldc1 phase 1a boundary treatment plan-p01
- Ldc1 phase 1a opp approved buildable zone-p01
- Site-rkd-ldc1 phase 1a general arrangement plan (zone d
- Ldc1 phase 1a soft landscape sheet 33-p01
- Ldc1 phase 1a block plan-p01
- Ldc1 phase 1a general arrangement plan (zone a
- Ldc1 phase 1a general arrangement plan (zone b
- Ldc1 phase 1a overall site sections 06-p01
- Ldc1 phase 1a overall site sections 01-p01
- Ldc1 phase 1a overall site sections 05_p01
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a overall site sections 04-p01
- Ldc1 phase 1a detailed roads and pavements plan
- Ldc1 phase 1a overall site sections 03-p01
- Ldc1 phase 1a sitewide roads and pavements plan
- Ldc1 phase 1a landscape sections sheet 5-p01
- Ldc1 phase 1a landscape sections sheet 4-p01
- Phase 1a cover letter and drawing schedule
Watch members (£5 a month) open the document list 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's median decision took 57 days. More in our guide to how long planning decisions take.
About reserved matters applications
A reserved matters application fills in the detail held back from an earlier outline permission, judged against that permission rather than the principle of development. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
100% historically approved · decision due ~9 Oct
Application for approval of details reserved by conditions 4 (surface water drainage scheme), 8 (updated detailed layout drawings), 35 (drainage details), 47 (Flood Risk Assessment) and 52 (capacity for foul water) of planning permission reference 24/1152/OUTEI.
Awaiting decision Conditions 40 docs -
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
100% historically approved · decision due ~9 Oct
Application for approval of details reserved by conditions 23 (partial) (soft landscaping scheme) and 43 (strategic landscaping scheme along northern and eastern boundaries) of planning permission reference 24/1152/OUTEI.
Awaiting decision Conditions 46 docs -
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by condition 14 (contamination investigation and risk assessment) of planning permission reference 24/1152/OUTEI.
Granted Conditions 10 docs -
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
Application for approval of details reserved by condition 10 (partial - Intrusive Ground Investigation) of planning permission reference 24/1152/OUTEI.
Granted Conditions 8 docs -
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
100% historically approved · decision due ~9 Oct
Application for approval of details reserved by condition 54 (district heating network feasibility study) of planning permission reference 24/1152/OUTEI.
Awaiting decision Conditions 5 docs -
Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire
100% historically approved · decision due ~9 Oct
Application for approval of details reserved by condition 55 (protected species survey) of planning permission reference 24/1152/OUTEI.
Awaiting decision Conditions 5 docs
Other reserved matters applications
In Hertsmere
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25/1122/REM Granted
Land Lying To The East Of Hartfield Avenue And Fronting Onto Barnet Lane Elstree Hertfordshire
Application for the approval of reserved matters relating to layout, scale, appearance and landscaping (including details required conditions 3, 6, 7, 8, 9, 10, and 27), for a residential development of 73 dwellings, with associated landscaping, amenity space, custom and self-build housing plots, sustainable urban drainage (SuDs), and associated works, pursuant to outline planning permission 23/0053/OUT.
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25/1811/REM Granted
Land At Sutcliffe Close And Rear Of 5 - 14 Ford Close Bushey Hertfordshire
Application for the approval of reserved matters relating to appearance, landscaping, layout and scale for the erection of 27 dwellings, with associated car/cycle parking, landscaping and access from Sutcliffe Close, pursuant to outline planning permission reference 23/1135/OUT.
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26/0534/REM Awaiting decision
Lands To The South Of Aldenham Reservoir Watford Road Elstree Hertfordshire
Application for the approval of reserved matters relating to appearance, landscaping, layout and scale for the erection of three new commercial buildings including ancillary office space (Use class E / B2 / B8), drainage infrastructure, landscaping, new vehicular access and associated provision of car and cycle parking and all associated works, pursuant to outline planning permission reference 22/2147/OUT.
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26/0429/REM Awaiting decision
Land South Of Sky Studios Elstree Rowley Lane Borehamwood Hertfordshire
Application for the approval of reserved matters relating to appearance, landscaping, layout and scale for flexible (B2/B8) use including ancillary office floorspace, associated parking, loading docks, servicing, landscaping and substation pursuant to outline planning permission reference 23/0478/OUT.
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26/0204/REM Awaiting decision
Land North East Of Elton Way Bushey Hertfordshire WD25 8HB
Application for the approval of reserved matters relating to landscaping for the Demolition and redevelopment to comprise B8 use of up to 30,000 sqm gross external, including ancillary offices. In addition to the above the development will include car parking, creation of servicing areas and provision of associated services, including waste, refuse, cycle storage, lighting and sub station and for the laying out of the buildings, routes and open spaces within the development and all associated works and operations including but not limited to: demolition, earthworks, provision of attenuation infrastructure, engineering operations. This application is for a phased development capable of coming forward in distinct and separable phases and/or plots in a severable way. Pursuant to outline planning permission reference 23/1035/OUTEI.