150 Great Portland Street London W1W 6QD Data via plota.co.uk

26/07443/FULL - Full Planning Permission Application Pending

Proposal

Installation of three air conditioning condenser units to the lower ground floor rear courtyard, incluidng erection of a plunge pool. (retrospective) Data via plota.co.uk

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View original council record ↗Last checked 5 Nov 2026, 05:11

Street View

Application progress

✓

Received

2 Nov 2026

Decision

Expected by 28 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 23 Dec 2026 and 1 Jan 2027, from Westminster's recent extensions.

Documents 13

Plans & drawings 8

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 2 Nov 2026 View ↗

Site constraints 9

Harley Street conservation area

Demolition needs planning permission and permitted development is restricted.

The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.

Council document ↗

2 Article 4 directions

Article 4 Basement Development Permitted Rights Removed · Article 4 Direction Class E To C3 In Central Activities Zone. Named permitted development rights are withdrawn here.

An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.

Protected view corridor: 4A.2 Primrose Hill summit to the Palace of Westminster

Inside the landmark viewing corridor of a protected vista. A building that rises above the corridor's threshold height should be refused. How high that is depends on where along the view the site is.

The London Plan (policy HC4) designates strategic views, and the Mayor's London View Management Framework (March 2012) gives 13 of them a protected vista toward St Paul's Cathedral, the Palace of Westminster or the Tower of London. A vista has a threshold height that rises or falls with the line of sight. In the landmark viewing corridor, a building above it would harm the view and should be refused. In the wider setting consultation area around the corridor, a building above it is referred for consultation and its effect on the view is judged. The threshold changes along each view and is set out in the framework. A revised framework is out for consultation until 4 December 2026 and is not yet in force.

London View Management Framework ↗

Air quality management area: Westminster AQMA

The council has declared the area as failing an air quality objective.

Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.

Council record ↗

Central activities zone

The core of central London in the London Plan.

Offices, culture and the other strategic functions of the centre take priority over new housing here.

17 listed buildings within 150 m

Nearest: General Medical Council, Grade II, 45 m away · 5 Grade II*, 12 Grade II

The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.

Show all 17 with distances

45 mGeneral Medical CouncilGrade II
83 m126, Great Portland Street W1Grade II
88 m101, Great Titchfield Street W1Grade II
93 m99, Great Titchfield Street W1Grade II
98 m97, Great Titchfield Street W1Grade II
101 m8, Hallam Mews W1Grade II
103 m95, Great Titchfield Street W1Grade II
107 m73, New Cavendish Street W1Grade II
109 m93, Great Titchfield Street W1Grade II
116 m34-52, Portland Place W1Grade II*
126 mThe Ship Public HouseGrade II
128 m56 and 58, Portland Place W1Grade II*
130 m32, Portland Place W1Grade II
134 m26-30, Portland Place W1Grade II*
139 mBroadcasting HouseGrade II*
140 m12, Weymouth Street W1Grade II
145 mThe Royal Institute of British ArchitectsGrade II*

Historic England ↗

Also on the record

National infrastructure project 1784 m away: Thames Tideway Tunnel; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square.

Not affected

Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 4 November 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.

Building

Floor area479 m² (5,156 sq ft)

Energy ratingB (asset rating 41)

UseOffices and Workshop Businesses

HeatingAir Conditioning

From the energy performance certificate lodged in August 2026, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council: Westminster
Application type: Full Planning Permission Application
Postcode: W1W 6QD
Received: 2 Nov 2026
Validated: 2 Nov 2026
Ward: West End
Case officer: Show
Target decision: 28 Dec 2026
Agent: CarneySweeney
Freehold owner: Show

Decision outlook

Day 4 of the 56-day target. Westminster usually decides extensions by day 55.

prediction

Day 452 days to the 56-day target

56%decided within 8 weeks

88%approved

1,937decided in the last year

Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

Last counted 4 Nov 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference: PP-15329979
Planning Portal ref: PP-15329979
Env. assessment: No

Westminster

Planning Authority Score

3.5/10

Below average

#221 of 296 councils

Relevant to this application:

Householder decisions

Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.

One of the strictest councils

only 81% approved vs 90% nationally

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

Westminster decision statistics

Based on MHCLG data, the year to March 2026

86%

Overall approval rate

Below avg (87%) #201 of 296

81%

Householder approved

Below avg (90%) #277 of 296

44%

Decided in 8 weeks

Below avg (63%) #258 of 296

28%

Extended time limit

Below avg (41%) #46 of 296

83%

Minor dwellings approved

12 decided (1-9 homes)

67%

Major dwellings approved

3 decided (10+ homes)

81%

Change of use approved

133 decided

4,602

Total decisions

648 refused in the year to March 2026

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.