Abercorn School 38 Portland Place London W1B 1LS Data via plota.co.uk

26/00352/LBC - Listed Building Consent Application Approved

Proposal

Internal alterations to 38 Portland Place, removal of link building between 38 Portland Place and 9 Cavendish Mews North at ground, first and second floors, formation of a new rear stair core to main building and new external fire escape stair. New terraces to office space in connection with plant space and the installation of air source heat pumps. Alterations to the front and rear facades of the mews building and internal alterations and new plant space to mews roof level and new terrace spaces Data via plota.co.uk

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View original council record ↗Last checked 10 Oct 2026, 06:41

Street View

Application progress

✓

Received

21 Jan 2026

✓

Approved

27 Jul 2026

Approved on 27 Jul 2026 · Delegated Decision · Last checked 25 Sept 2026

Documents 91

Decision & officer reports 2

PDF GRANT OF LISTED BUILDING CONSENT [PE] Decision Notice · 27 Jul 2026 View ↗ PDF DELEGATED REPORT Report · 27 Jul 2026 View ↗

Statements & assessments 8

PDF DOOR ASSESSMENT Background Papers · 27 May 2026 View ↗ PDF SURVEY - PHOTOGRAPHIC RECORD - 9CMN Drawing · 21 Jan 2026 View ↗ PDF DESIGN AND ACCESSSTATEMENT Design and Access Statement · 21 Jan 2026 View ↗ PDF HERITAGE STATEMENT V3 Heritage Statement · 21 Jan 2026 View ↗ PDF SURVEY - PHOTOGRAPHIC RECORD - 38 PP - PART 2 Drawing · 21 Jan 2026 View ↗ PDF SURVEY - PHOTOGRAPHIC RECORD - 38 PP - PART 1 Drawing · 21 Jan 2026 View ↗ PDF PLANNING STATEMENT Background Papers · 21 Jan 2026 View ↗ PDF SUSTAINABILITY SUMMARY-S2-P01 Background Papers · 21 Jan 2026 View ↗

Plans & drawings 57

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 21 Jan 2026 View ↗ PDF FEECALCULATION Background Papers · 21 Jan 2026 View ↗

Consultation & comments 7

PDF HISTORIC ENGLAND Consultee Comment · 6 May 2026 View ↗ PDF HISTORIC ENGLAND Consultee Comment · 5 May 2026 View ↗ PDF HISTORIC ENGLAND Consultee Comment · 23 Mar 2026 View ↗ PDF HISTORIC ENGLAND Consultee Comment · 12 Mar 2026 View ↗ PDF HISTORIC ENGLAND Consultee Comment · 12 Mar 2026 View ↗ PDF CNSLT-CONSULTEE CLOUD STD Background Papers · 6 Mar 2026 View ↗ PDF ECNSLT-STD EXT CONSULTEES Background Papers · 6 Mar 2026 View ↗

Associated applications 3

Listed buildingApproved27 Jul 202626/00352/LBCThis application
Internal alterations to 38 Portland Place, removal of link building between 38 Portland Place and 9 Cavendish Mews North…
- FullUse of all floor levels at 38 Portland Place as Class E (office use) and residential (Class…21 Jan 202626/00351/FULL
  Conditions 14 awaiting decision
  - Show 1 more · 1 pending
    - ConditionsDetails of how waste is to be stored on site and how materials for recycling will be stored…13 Oct 202626/06997/ADFULL

Site constraints 8

Grade II* listed: 34-52, Portland Place W1

List entry 1227025 · The pin is inside its outline · 27 more listed buildings within 150 m (1 Grade I, 10 Grade II*, 16 Grade II)

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 the other 27 with distances

24 m73, New Cavendish Street W1Grade II
37 m32, Portland Place W1Grade II
47 m27-35 Portland PlaceGrade II*
47 m26-30, Portland Place W1Grade II*
50 m8, Hallam Mews W1Grade II
75 m41-47, Portland Place W1Grade II*
75 m56 and 58, Portland Place W1Grade II*
75 m17-21, Portland Place W1Grade II*
87 mGeneral Medical CouncilGrade II
92 m21, Duchess Mews W1Grade II
96 m82, NEW CAVENDISH STREET W1 (See details for further address information)Grade II*
97 mStatue of Sir George Stuart White in Centre of Road South of Weymouth Street CrossingGrade II
98 m19, Duchess Mews W1Grade II
102 mBroadcasting HouseGrade II*
105 m17, Duchess Mews W1Grade II
109 mThe JackalopeGrade II
117 mThe Royal Institute of British ArchitectsGrade II*
118 m61 and 63, New Cavendish Street W1Grade II*
122 m12, Weymouth Street W1Grade II
127 m10, Duchess Street W1Grade II
129 mStatue of Quintin Hogg (in Centre of Road Opposite North End of Broadcasting House)Grade II
138 mNo 2 and Attached Railings No 4 and Attached RailingsGrade II
142 m15, Mansfield Street W1Grade II
143 m22, Weymouth StreetGrade II
145 m5-13, Mansfield Street W1Grade II*
145 m126, Great Portland Street W1Grade II
149 mChandos HouseGrade I

Historic England ↗

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 ↗

Article 4 direction

Article 4 Basement Development Permitted Rights Removed. 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 ↗

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.

Also on the record

National infrastructure project 1830 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 6 October 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.

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30 Jul 2026Approved

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24 Jul 2026Withdrawn

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Details of installation of services and related fixtures pursuant to condition 8...

26/04967/ADLBC

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Important details

Council: Westminster
Application type: Listed Building Consent Application
Postcode: W1B 1LS
Received: 21 Jan 2026
Validated: 21 Jan 2026
Ward: West End
Case officer: Show
Target decision: 18 Mar 2026
Decision: Application Permitted
Decision date: 27 Jul 2026
Decision level: Delegated Decision
Applicant: Show
Agent: Howard de Walden Estates ltd

How this decision compares

Decided in 187 days from validation, 132 days slower than Westminster's median of 55 for commercial premises. Approved, as 87% of commercial premises here are.

This one187d

Council55d

UK56d

55%decided within 8 weeks

87%approved

784decided in the last year

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

Public comments

No public comments yet.

Last counted 25 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference: PP-14495608
Planning Portal ref: PP-14495608
Comments by: 8 Apr 2026
Site or press notice: 18 Mar 2026
Env. assessment: No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025

52 Portland Place London W1B 1NH

Demolition, refurbishment, restoration and alterations to 52 Portland Place as well as re…

25/08377/LBC 17 Nov 2025

2025

52 Portland Place London W1B 1NH

Demolition, refurbishment, restoration and alterations to 52 Portland Place as well as re…

25/08376/FULL 17 Nov 2025

2025

28 Portland Place London W1B 1LY

Replacement of external modern staircase dome and installation of new internal chimneypie…

25/00558/LBC 28 Jan 2025

2025

48 Portland Place London W1B 1NN

Pitched and flat roof repairs, external render repairs and redecoration, timber window re…

25/00294/LBC 17 Jan 2025

2024 Approved

De Walden Court 85 - 89 New Cavendish Street London W1W 6XD

Display for a temporary period of six months of a non-illuminated 'to let' board attached…

24/06732/AD7 9 Oct 2024

2024

8 Cavendish Mews North London W1W 6LA

Reconfiguration of rear windows and installation of new double glazed sash windows.

24/07017/FULL 7 Oct 2024

2024

Second Floor Flat 48 Portland Place London W1B 1NG

General internal alterations with hallway cupboard changed into a WC, main bathroom chang…

24/04381/LBC 28 Jun 2024

2023 Approved

19 Portland Place London W1B 1PX

Installation air conditioning units at roof level within plant enclosure; secondary glazi…

23/05917/LBC 27 Jun 2024

2023 Approved

19 Portland Place London W1B 1PX

Installation air conditioning units at roof level within plant enclosure; secondary glazi…

23/05916/FULL 27 Jun 2024

2024

Flat A 5 Hallam Mews London W1W 6AR

This application is for permission to fell a dead silver birch tree to the rear of the fl…

24/04052/TCA 17 Jun 2024

2024 Approved

4 - 5 Cavendish Mews North London W1W 6LA

Erection of a roof extension and alterations to the front elevation to enlarge and alter…

24/00473/FULL 12 Jun 2024

2023

44 Portland Place London W1B 1NE

Display of non-illuminated signs on the existing hoarding enclosure for a temporary perio…

23/07994/ADV 17 Nov 2023

2023 Approved

44 Portland Place London W1B 1NE

Structural repair works to the first floor.

23/04692/LBC 11 Oct 2023

2023

41 Portland Place London W1B 1QH

Replacement of the air handling unit with a new air handling unit serving he Wolfson Conf…

23/06978/LBC 6 Oct 2023

2023 Approved

44 Portland Place London W1B 1NE

Structural repair works to the second and third floors

23/03427/LBC 18 Jul 2023

2023 Approved

28 Portland Place London W1B 1LY

Flexible/alternative use of the building for either institutional use (sui generis), or a…

23/02257/FULL 20 Jun 2023

2023 Approved

44 Portland Place London W1B 1NE

Structural repair works to the front, stair/lift landing and rear room of the fourth floo…

23/01884/LBC 19 May 2023

2022 Approved

44 Portland Place London W1B 1NE

Lowering of the pavement vaults, internal alterations, installation of new roof access ha…

22/06619/LBC 8 Feb 2023

2023 Approved

42 Portland Place London W1B 1NB

Display for a temporary period of six months of a non-illuminated estate agent board loca…

23/00436/AD7 3 Feb 2023

2022 Approved

40 Portland Place London W1B 1NB

Removal and replacement entrance step

22/08199/LBC 12 Jan 2023

2019 Approved

1 Duchess Street London W1W 6AN

Display for a temporary period of six months of a non-illuminated estate agent board in f…

19/03595/AD7 4 Jun 2019

2019 Refused

33 Portland Place London W1B 1QE

Internal alterations at ground floor level to replace the cornice in the reception room.

19/02938/LBC 3 Jun 2019

2019 Approved

33 Portland Place London W1B 1QE

Internal alterations to remove the console table in the Main Reception Room.

19/02838/LBC 30 May 2019

2019 Approved

24-24A Portland Place London W1B 1LU

Temporary change of use of the whole building to Class D1 medical use for a period of 41…

19/01362/FULL 16 Apr 2019

2019 Approved

6 Hallam Mews London W1W 6AR

Replacement of the existing three, 2 bedroom apartments with two larger family sized 3-be…

19/00373/FULL 12 Apr 2019

Westminster

Planning Authority Score

3.5/10

Below average

#221 of 296 councils

Relevant to this application:

Other 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

Abercorn School 38 Portland Place London W1B 1LS Data via plota.co.uk

Proposal

Application progress

Documents 91

Decision & officer reports 2

Statements & assessments 8

Plans & drawings 57

Application forms 2

Consultation & comments 7

Other documents 15

Associated applications 3

Site constraints 8

Other new applications on this street

Nearby new applications

Important details

How this decision compares

Public comments

Consultation & key dates

Nearby activity