Flat 3 54 Montagu Square London W1H 2LP Data via plota.co.uk

26/05923/LBC - Listed Building Consent Application Approved
Extensions & alterationsListed buildings

Proposal

Internal layout alterations and associated works. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
31 Aug 2026
✓
Validated
7 Sept 2026
✓
Approved
8 Oct 2026

Approved on 8 Oct 2026 · Delegated Decision · Last checked 9 Oct 2026

Documents 11

Decision & officer reports 2

PDF GRANT OF LISTED BUILDING CONSENT [PE] Decision Notice · 8 Oct 2026 View ↗ PDF DELEGATED REPORT Report · 8 Oct 2026 View ↗

Statements & assessments 1

PDF HERITAGE & DESIGN AND ACCESS STATEMENT, FLAT 3, 54 MONTAGU SQUARE, W1H 2LP Design and Access Statement · 31 Aug 2026 View ↗

Plans & drawings 4

PDF DEMOLITION SCHEME Drawing · 5 Sept 2026 View ↗ PDF PROPOSED LAYOUT Drawing · 5 Sept 2026 View ↗ PDF EXISTING LAYOUT Drawing · 5 Sept 2026 View ↗ PDF LOCATION PLAN Location Plan · 31 Aug 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 31 Aug 2026 View ↗

Other documents 3

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 14 Sept 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 4 Sept 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 4 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 9

Grade II listed: 52-59, Montagu Square W1
List entry 1267363 · The pin is inside its outline · 42 more listed buildings within 150 m (42 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 42 with distances
Historic England ↗
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 ↗
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 Named permitted development rights are withdrawn here.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 220 m away: London Strategic Heat Main Project, at pre-application; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Tree preservation order 22 m away: STM3_A2.
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 area52 m² (560 sq ft)
Energy ratingC (75 out of 100), could reach B
PropertyFlat, 1 habitable room
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2025, 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
Listed Building Consent Application
Postcode
W1H 2LP
Received
31 Aug 2026
Validated
7 Sept 2026
Ward
Marylebone
Case officer
Show
Target decision
2 Nov 2026
Decision
Application Permitted
Decision date
8 Oct 2026
Decision level
Delegated Decision
Applicant
Show

How this decision compares

Decided in 31 days from validation, 24 days faster than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.

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 9 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15162557
Planning Portal ref
PP-15162557
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 Approved
Centre Gardens Montagu Square London W1H 2LA
7 x London Plane: (T4, T19, T20, T21, T68, T73): Prune back from building side by up to 2…
25/07189/TPO
2025
Flat 2 5 Bryanston Square London W1H 2DH
Internal alterations including repair, refurbishment and repainting of the windows and fr…
25/07257/FULL
2025
Flat 2 5 Bryanston Square London W1H 2DH
Internal alterations including replacement of windows and French Windows; refurbishment o…
25/07211/LBC
2025
Ellerton House 11 Bryanston Square London W1H 2DQ
Replacement of the existing timber pergola over the rear terrace with new. Linked with 25…
25/07174/LBC
2025
Ellerton House 11 Bryanston Square London W1H 2DQ
Replacement of the existing timber pergola over the rear terrace with new. Linked with 25…
25/07173/FULL
2025
1 Montagu Square London W1H 2LA
Installation of 1 Portland Stone step to match existing; Installation of Helifix Bars int…
25/06616/LBC
2025 Approved
Flat 4 58 Montagu Square London W1H 2LS
Internal alterations to flat at fourth floor level including installation of a spiral sta…
25/04771/LBC
2025 Refused
Flat 2 5 Bryanston Square London W1H 2DH
Installation of replacement windows, refurbishment of front and rear balconies and railin…
25/03423/LBC
2025 Refused
Flat 2 5 Bryanston Square London W1H 2DH
Installation of replacement windows, refurbishment of front and rear balconies and railin…
25/05029/FULL
2025
Flat 1 49 Montagu Square London W1H 2LW
Replacement of existing single glazed sash timber windows and frames with new double glaz…
25/05706/LBC
2025
Flat 1 49 Montagu Square London W1H 2LW
Replacement of existing single glazed sash timber windows and frames with new double glaz…
25/05705/FULL
2025
Flat 3 12 Montagu Square London W1H 2LD
Replace existing rear door with hardwood double doors with fan light over and fixed side…
25/02495/LBC
2025
Flat 4 1 Bryanston Square London W1H 2DH
Internal alterations including new partitions, joinery and cornices, kitchen and bathroom…
25/01336/LBC
2025
Flat 7 1 Bryanston Square London W1H 2DH
Replacement of two rooflights and two crittal windows with timber box sash windows and re…
25/01181/LBC
2024
Flat 1 58 Montagu Square London W1H 2LS
Creation of a WC, aligning the doors of the flat and minor internal layout amendments.
24/08812/LBC
2024
Flat 3 17 Montagu Square London W1H 2LE
Replacement of main flat door, door entrance of flat 4 above, three casement windows to t…
24/08803/FULL
2024
Flat 3 17 Montagu Square London W1H 2LE
Replacement of main flat door, door entrance of flat 4 above, three casement windows to t…
24/08804/LBC
2024
Flat 1 1 Montagu Square London W1H 2LA
Tanking works to the existing pavement vault and scullery
24/08556/LBC
2024 Approved
Flat 1 8 Montagu Square London W1H 2LB
Installation of air conditioning units within enclosure within rear lower ground floor le…
24/07049/LBC
2024
20 Gloucester Place Mews London W1U 8BA
Alterations to the street elevation, including the enlargement and replacement of the gro…
24/07854/FULL
2019 Approved
Flat 3 5 Bryanston Square London W1H 2DH
Amalgamation of Flat 3 and Flat 4 to form a single dwelling (Class C3).
19/02766/FULL
2019 Approved
Flat 3 7 Montagu Square London W1H 2LB
Replacement of one fourth floor window at front elevation and installation of two roof li…
19/02111/LBC
2019 Approved
Flat 3 7 Montagu Square London W1H 2LB
Replacement of one fourth floor window at front elevation and installation of two roof li…
19/02110/FULL
2019 Approved
Flat 5 5 Bryanston Square London W1H 2DH
External alterations including: overhauling the front elevation windows and replacement o…
19/02425/LBC
2019 Approved
Flat 5 5 Bryanston Square London W1H 2DH
New A/C unit at fourth floor level on the lightwell elevation, replacement of dormer wind…
19/02424/FULL
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
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.