1 Portman Square London W1H 6DG Data via plota.co.uk

26/03050/FULL - Full Planning Permission Application Approved
Utility infrastructureCommercial premises

Proposal

Installation of two new freestanding air conditioning condensers in acoustic enclosures installed at bottom of rear lightwell. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
8 May 2026
✓
Validated
29 Jun 2026
✓
Approved
24 Aug 2026

Approved on 24 Aug 2026 · Delegated Decision · Last checked 25 Sept 2026

Documents 20

Decision & officer reports 2

PDF GRANT OF FULL PP [PE] Decision Notice · 24 Aug 2026 View ↗ PDF DELEGATED REPORT Report · 24 Aug 2026 View ↗

Statements & assessments 2

PDF HERITAGE STATEMENT Heritage Statement · 14 May 2026 View ↗ PDF ENVIRONMENTAL NOISE SURVEY AND PLANT NOISE ASSESSMENT REPORT Noise impact assessment · 14 May 2026 View ↗

Plans & drawings 5

PDF EXTERNAL AIR CONDITIONING Drawing · 14 May 2026 View ↗ PDF LOCATION PLAN Location Plan · 8 May 2026 View ↗ PDF EXTERNAL AIR CONDITIONING Drawing · 8 May 2026 View ↗ PDF FLOOR PLAN_INCLUDED_IN_ELEVATION (FRONT) - PROPOSED Superseded document · 8 May 2026 View ↗ PDF PHOTOGRAPHS AND PHOTOMONTAGES_INCLUDED_IN_ELEVATION (FRONT) - PROPOSED Superseded document · 8 May 2026 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 8 May 2026 View ↗ PDF FEECALCULATION Background Papers · 8 May 2026 View ↗

Consultation & comments 1

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 17 Jul 2026 View ↗

Other documents 8

PDF CNSLT-LA SOCIETY Background Papers · 17 Jul 2026 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 17 Jul 2026 View ↗ PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 17 Jul 2026 View ↗ PDF 2ND INVALID LETTER Background Papers · 4 Jun 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 13 May 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 13 May 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 8 May 2026 View ↗ PDF SITELOCATION Background Papers · 8 May 2026 View ↗

All documents on the council site ↗

Site constraints 11

Portman Estate 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.
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 ↗
Town centre: Baker Street (part)
A designated centre in the London Plan.
Shops, services and active frontages are protected in centres, and main town centre uses are steered here first.
Registered park or garden 33 m away: Portman Square and Manchester Square
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
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.
16 listed buildings within 150 m
Nearest: 130, Wigmore Street W1, Grade II, 39 m away · 1 Grade II*, 15 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 16 with distances
Historic England ↗
Also on the record
National infrastructure project 1958 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; Priority habitat 34 m away: Deciduous woodland.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 2 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 area365 m² (3,929 sq ft)
Energy ratingE (asset rating 111)
UseA1/A2 Retail and Financial/Professional services
HeatingAir Conditioning

From the energy performance certificate lodged in August 2021, 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
W1H 6DG
Received
8 May 2026
Validated
29 Jun 2026
Ward
Marylebone
Case officer
Show
Target decision
24 Aug 2026
Decision
Application Permitted
Decision date
24 Aug 2026
Decision level
Delegated Decision
Applicant
Show
Agent
AMD interior architecture

How this decision compares

Decided in 56 days from validation, about the council's usual 57 days. Approved, as 90% of utility and infrastructure works here are.

49%decided within 8 weeks
90%approved
504decided in the last year

Plota live figures for utility and infrastructure works decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

37 neighbours consulted · Last counted 25 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14898431
Planning Portal ref
PP-14898431
Comments by
19 Aug 2026
Site or press notice
29 Jul 2026
Env. assessment
No

Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2021
Removal of 1 ATM, reinstall glazing in window bay in the existing window frame, rremoval…
21/02792/FULL
Within ~100m

Nearby activity

2025
Basement And Ground Floor 6 - 7 Portman Square London W1H 6NA
Display of two internally illuminated projecting sign measuring 0.75m x 0.75m, 0.18m x 1…
25/07373/ADV
2025
4 Portman Square London W1H 6LD
Replacement entrance door with a new full-height glazed door; replacement of windows 1 an…
25/07152/FULL
2025 Approved
9 Seymour Mews London W1H 6BE
Replacement of existing single glazed timber windows with new double glazed windows.
25/05476/FULL
2025 Approved
Orchard Court Portman Square London W1H 6LE
Display of an internally illuminated (letters only) projecting sign measuring 0.80m x 0.7…
25/05613/ADV
2025 Approved
132 Wigmore Street London W1U 3SD
Installation of replacement shopfront.
25/01944/FULL
2024
Orchard Court Portman Square London W1H 6LE
Alterations to shopfronts and entrances to Portman Square, Wigmore Street and Fitzharding…
24/08325/FULL
2024
Orchard Court Portman Square London W1H 6LE
Display of vinyls on glazing over a total area of 8m x 152m and graphics applied to hoard…
24/06202/ADV
2024
43 - 45 Portman Square London W1H 6LY
Partial demolition of the existing roof and removal of plant equipment; construction of a…
24/04987/FULL
2024
Portman Square London
T8 Prunus cerasifera ???Atropurpurea??? (Cherry Plum (Myrobalan)) EW20 (End-weight reduct…
24/04477/TPO
2024
Portman Square London
T8 Prunus cerasifera ???Atropurpurea??? (Cherry Plum (Myrobalan)) EW20 (End-weight reduct…
24/04477/TCA
2024 Approved
Flat 23 Orchard Court Portman Square London W1H 6LE
Installation of two condenser units at roof level.
24/01232/FULL
2024
6 Seymour Mews London W1H 6BE
External alterations, extension at ground floor, excavation to provide new basement; and…
24/02777/FULL
2024 Approved
Flat 43 Orchard Court Portman Square London W1H 6LG
Installation of plant equipment comprising two condenser units in acoustic enclosures at…
24/00047/FULL
2023 Approved
Flat 20 Orchard Court Portman Square London W1H 6LE
Replacement of the street elevation windows to third floor apartment.
23/04521/FULL
2023 Approved
Orchard Court Portman Square London W1H 6LE
Installation of plant equipment comprising condenser units and associated acoustic enclos…
23/02657/FULL
2022 Approved
Basement And Ground Floor 105 Wigmore Street London W1U 1QY
Alterations to entrance doors and windows at ground floor level on the Wigmore Street and…
22/07865/FULL
2022 Approved
Selfridges 400 Oxford Street London W1A 1AB
Installation of new lead cladding, a new containment system to the first floor cornice le…
22/07643/LBC
2022 Approved
Selfridges 400 Oxford Street London W1A 1AB
Installation of new lead cladding, a new containment system to the first floor cornice le…
22/07642/FULL
2022 Approved
Basement And Ground Floor 105 Wigmore Street London W1U 1QY
Display of an internally illuminated (letters only) fascia sign measuring 61cm x 500cm an…
22/07866/ADV
2022 Withdrawn
2 Portman Square London W1H 6LA
Display of one non illuminated fascia sign measuring 1m x 5.315m.
22/05749/ADV
2016 Refused
Selfridges 400 Oxford Street London W1A 1AB
Display of internally illuminated (letters only) advert attached to a hoarding at ground…
16/03778/ADV
2016 Approved
132 Wigmore Street London W1U 3SD
Use of the public highway for the placing of three tables, nine chairs and five barriers…
16/01270/FULL
2016 Approved
124 Wigmore Street London W1U 3RY
Display for a temporary period of six months of a non-illuminated 'to let' board located…
16/01583/AD7
2016 Approved
14 Fitzhardinge Street London W1H 6DH
Erection of a single storey extension at rear ground floor level for use as additional re…
16/00041/FULL
2016 Withdrawn
14 Fitzhardinge Street London W1H 6DH
Alterations including a new external glazed passenger lift at the rear to serve basement…
16/00042/FULL
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
Source: MHCLG planning statistics · See full council rankings

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.