Land East Of South Mimms Services St Albans Road South Mimms Hertfordshire Data via plota.co.uk

26/1187/REM - Reserved Matters Application Awaiting decision

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 . Data via plota.co.uk

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View original council record ↗Last checked 7 Oct 2026, 01:47

Application progress

✓

Received

17 Aug 2026

✓

Consultation

1 Sept 2026

Decision

Expected by 16 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 20 Oct 2026 and 19 Nov 2026, from recent reserved matters across the UK.

The consultation period closed on 30 Sept 2026.

Documents 110

Statements & assessments 3

PDF Ecology comments Consultee replies · 14 Sept 2026 View ↗ PDF Ldc1 phase 1a (site wide infrastructure) rma planning statement inc. sci Supporting Documents · 27 Aug 2026 View ↗ PDF Ldc1-r1a-rp-n-003-xx-xx-xxxx-arp Air quality assessment-p01 Supporting Documents · 17 Aug 2026 View ↗

Plans & drawings 98

Application forms 1

PDF Applicationformredacted Application Form · 17 Aug 2026 View ↗

Consultation & comments 8

PDF Consultee comment submitted online Consultee Comment · 14 Sept 2026 View ↗ PDF Historic environment comments Consultee replies · 14 Sept 2026 View ↗ PDF For comment Consultee Comment · 11 Sept 2026 View ↗ PDF Natural england response Consultee replies · 10 Sept 2026 View ↗ PDF Barnet response Consultee replies · 8 Sept 2026 View ↗ PDF Active travel england response Consultee replies · 8 Sept 2026 View ↗ PDF Potters bar special interest group Consultee replies · 3 Sept 2026 View ↗ PDF Herts fire and rescue service Consultee replies · 3 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 4

Green belt: London

Inappropriate development needs very special circumstances.

Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.

Read the government guidance ↗

Also on the record

Radon affected area, class 3; Inside the South Mimms built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.

Not affected

Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. 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: Hertsmere
Application type: Reserved Matters Application
Received: 17 Aug 2026
Validated: 17 Aug 2026
Ward: Potters Bar Furzefield
Case officer: Show
Target decision: 16 Nov 2026
Applicant: Show
Agent: David Lock Associates Ltd

Decision outlook

Day 53 of the 56-day target. Councils usually decide reserved matters by day 80.

prediction

Day 5327 days to the predicted decision (day 80)

34%decided within 8 weeks

96%approved

12%go to committee

Plota live figures for reserved matters decided across the UK in the last twelve months, from validation; too few recent reserved matters in Hertsmere to go on. Hertsmere decision record →

Public comments

105comments received

105 objecting

100% object · above the UK average of 74%

1,982 neighbours consulted · Last counted 30 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference: PP-15141038
Planning Portal ref: PP-15141038
Neighbours: 2 Sept 2026
Consultation: 1 Sept 2026
Comments by: 30 Sept 2026
Site or press notice: 9 Sept 2026
Statutory expiry: 16 Nov 2026
Env. assessment: No

Hertsmere

Planning Authority Score

3.3/10

Poor

#225 of 296 councils

Relevant to this application:

Major dwellings

Hertsmere is slower than most councils at deciding householder applications, ranking #243 out of 296. 55% of applications have the time limit extended, above the 41% national average. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

Slower than most councils

for householder decisions

These figures are council-wide context, not a prediction for this application. View full council performance

Hertsmere decision statistics

Based on MHCLG data, the year to March 2026

93%

Overall approval rate

Above avg (87%) #57 of 296

94%

Householder approved

Above avg (90%) #108 of 296

49%

Decided in 8 weeks

Below avg (63%) #243 of 296

55%

Extended time limit

Above avg (41%) #249 of 296

84%

Minor dwellings approved

102 decided (1-9 homes)

75%

Major dwellings approved

8 decided (10+ homes)

89%

Change of use approved

27 decided

742

Total decisions

55 refused in the year to March 2026