Flat 4 58 Montagu Square London W1H 2LS Data via plota.co.uk

25/04771/LBC - Listed Building Consent Application Approved
Listed buildings

Proposal

Internal alterations to flat at fourth floor level including installation of a spiral stair leading to small loft storage space. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
11 Jul 2025
✓
Approved
11 Sept 2025

Approved on 11 Sept 2025 · Delegated Decision · Last checked 27 Oct 2026

Documents 15

Decision & officer reports 2

PDF GRANT OF LISTED BUILDING CONSENT [PE] Decision Notice · 11 Sept 2025 View ↗ PDF DELEGATED REPORT Report · 11 Sept 2025 View ↗

Statements & assessments 2

PDF DESIGN ACCESS SUSTAINABILITY STATEMENTS WITH PHOTOGRAPHS Design and Access Statement · 11 Jul 2025 View ↗ PDF HERITAGE STATEMENT Heritage Statement · 11 Jul 2025 View ↗

Plans & drawings 7

PDF PROPOSED 4TH FLOOR PLAN (1-50 SCALE A3 CORRECTED TITLE BLOCK) Drawing · 16 Jul 2025 View ↗ PDF EXISTING 4TH FLOOR PLAN Drawing · 11 Jul 2025 View ↗ PDF EXISTING LOFT PLAN Drawing · 11 Jul 2025 View ↗ PDF PROPOSED 4TH FLOOR PLAN Superseded document · 11 Jul 2025 View ↗ PDF PROPOSED LOFT PLAN Drawing · 11 Jul 2025 View ↗ PDF LOCATION PLAN Location Plan · 11 Jul 2025 View ↗ PDF SITE PLAN Drawing · 11 Jul 2025 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 11 Jul 2025 View ↗

Other documents 3

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 23 Jul 2025 View ↗ PDF RECEIPT OF APPLICATION Other · 15 Jul 2025 View ↗ PDF SCHEDULE OF WORKS Other · 11 Jul 2025 View ↗

All documents on the council site ↗

Associated applications 3

Site constraints 10

Grade II listed: 52-59, Montagu Square W1
List entry 1267363 · The pin is inside its outline · 47 more listed buildings within 150 m (47 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 47 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 195 m away: London Strategic Heat Main Project, at pre-application; Registered park or garden 242 m away: Portman Square and Manchester Square; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Tree preservation order 21 m away: STM3_A2.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 1 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.

Sales history 1

Last sold for £1,200,000 in June 2025. Flat or maisonette, leasehold.

26 June 2025£1,200,000Recorded as a transfer outside a standard sale

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area123 m² (1,324 sq ft)
Energy ratingD (58 out of 100)
PropertyMid-terrace flat, 4 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2023, 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 2LS
Received
11 Jul 2025
Validated
11 Jul 2025
Ward
Marylebone
Case officer
Show
Target decision
5 Sept 2025
Decision
Application Permitted
Decision date
11 Sept 2025
Decision level
Delegated Decision
Applicant
Show
Agent
Thomas Ruddy Chartered Architect

How this decision compares

Decided in 62 days from validation, 5 days slower than Westminster's median of 57 for listed building works. Approved, as 90% of listed building works here are.

49%decided within 8 weeks
90%approved
2,227decided in the last year

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

Public comments

No public comments yet.

Last counted 27 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14163753
Planning Portal ref
PP-14163753
Comments by
20 Aug 2025
Site or press notice
30 Jul 2025
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

2025
Detailed drawings of the new doors pursuant to condition 3 of listed building dated 11th…
25/07470/ADLBC
Within ~100m

Nearby activity

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
1 Gloucester Place Mews London W1U 8BA
Removal of the existing asphalt flat roof at first floor level and installation of a vent…
25/06633/FULL
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 2 13 Montagu Street London W1H 7EX
Installation of airbrick to front elevation, new secondary glazing, reconfiguration, acou…
25/04426/LBC
2025
Flat 2 13 Montagu Street London W1H 7EX
Installation of airbrick to front elevation, new secondary glazing, reconfiguration, acou…
25/04425/FULL
2025 Approved
68 Great Cumberland Place London W1H 7TX
1 x Japanese maple (T2): Reduce all round by approx. 1m, leaving furnishing growth . Thin…
25/03179/TCA
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
2018 Refused
14 Montagu Street London W1H 7EX
Alterations including the installation of glazed opaque balustrades to create a rear roof…
18/04765/LBC
2018 Refused
14 Montagu Street London W1H 7EX
Alterations including the installation of glazed opaque balustrades to create a rear roof…
18/04764/FULL
2018 Approved
13 Bryanston Mews East London W1H 2DB
Demolition and rebuilding of the front and side elevations adjoining no.13a Bryanston Mew…
18/01477/LBC
2018 Approved
13 Bryanston Mews East London W1H 2DB
Demolition and rebuilding of the front and side elevations adjoining no.13a Bryanston Mew…
18/00959/FULL
2018 Approved
Flat 3 13 Montagu Square London W1H 2LD
Internal alterations to flat 3 at first and second floor level including relocation of in…
18/03298/LBC
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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.