Music School Aldenham School Aldenham Road Elstree Hertfordshire Data via plota.co.uk

26/1141/LBC - Listed Building Consent Awaiting decision

Proposal

Ground floor extension to provide entrance lobby, administrative and staff areas; new openings in north elevation; internal alterations to layout on both floors; removal of modern boiler house on northern elevation; installation of 2x air handling units on south elevation; installation of sub-ground surface water attenuation tank; and minor amendments to existing hard surfacing. (Application for Listed Building Consent. Accompanying Full application reference 26/1140/FUL.) Data via plota.co.uk

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View original council record ↗Last checked 8 Oct 2026, 02:04

Street View

Application progress

✓

Received

11 Aug 2026

✓

Validated

17 Aug 2026

✓

Consultation

18 Aug 2026

Decision

Expected by 12 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 12 Oct 2026, from Hertsmere's recent listed building consent.

The consultation period closed on 17 Sept 2026.

Documents 26

Statements & assessments 8

Plans & drawings 11

Application forms 1

PDF Applicationformredacted Application Form · 11 Aug 2026 View ↗

Associated applications 2

Listed buildingPending17 Aug 202626/1141/LBCThis application
Ground floor extension to provide entrance lobby, administrative and staff areas; new openings in north elevation; internal…
- FullGround floor extension to provide entrance lobby, administrative and staff areas; new openings…17 Aug 202626/1140/FUL

Site constraints 5

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; 2 listed buildings within 150 m; Inside the Letchmore Heath 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: Listed Building Consent
Received: 11 Aug 2026
Validated: 17 Aug 2026
Ward: Aldenham West
Parish: Aldenham Parish
Target decision: 12 Oct 2026
Applicant: Show
Agent: MFS Resolution

Decision outlook

Day 53 of the 56-day target. Hertsmere usually decides listed building consent by day 56.

prediction

Day 533 days to the 56-day target

70%decided within 8 weeks

90%approved

11decided in the last year

Plota live figures for listed building consent decided by Hertsmere in the last twelve months, from validation. Hertsmere decision record →

Public comments

1comment received

1 neutral

27 neighbours consulted · Last counted 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference: PP-14968910
Planning Portal ref: PP-14968910
Neighbours: 18 Aug 2026
Consultation: 18 Aug 2026
Comments by: 17 Sept 2026
Site or press notice: 20 Aug 2026
Statutory expiry: 12 Oct 2026
Env. assessment: No

Hertsmere

Planning Authority Score

3.3/10

Poor

#225 of 296 councils

Relevant to this application:

Other decisions

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