15 - 16 Montagu Mews South London W1H 7ET Data via plota.co.uk

26/03608/ADFULL - Approval of Details (Full PP) Approved
Admin / procedural

Proposal

Details of all new windows, omission of the rooflight to the front roof slope conservation rooflight and main door pursuant to conditions 4, 5 and 6 of planning permission dated 7th May 2026 (RN: 26/00330/FULL). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
2 Jun 2026
✓
Approved
16 Jun 2026

Approved on 16 Jun 2026 · Delegated Decision · Last checked 6 Jul 2026

Documents 11

Decision & officer reports 2

PDF APPR. OF DETAILS-FULL RESMAT [PE] Decision Notice · 16 Jun 2026 View ↗ PDF DELEGATED REPORT Report · 16 Jun 2026 View ↗

Plans & drawings 6

PDF EXISTING ROOF PLAN Drawing · 2 Jun 2026 View ↗ PDF EXISTING FRONT ELEVATION Drawing · 2 Jun 2026 View ↗ PDF PROPOSED PLAN Drawing · 2 Jun 2026 View ↗ PDF PROPOSED ELEVATION Drawing · 2 Jun 2026 View ↗ PDF PROPOSED WINDOW DETAILS Drawing · 2 Jun 2026 View ↗ PDF 6399-201 Drawing · 2 Jun 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 2 Jun 2026 View ↗

Other documents 2

PDF ACK-APPROVAL OF DETAILS APPL. Background Papers · 15 Jun 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 3 Jun 2026 View ↗

All documents on the council site ↗

Associated applications 2

Site constraints 9

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 Named permitted development rights are withdrawn here.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 ↗
45 listed buildings within 150 m
Nearest: 54 and 56, Great Cumberland Place W1, Grade II, 13 m away · 45 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 45 with distances
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.
Also on the record
National infrastructure project 84 m away: London Strategic Heat Main Project, at pre-application; Registered park or garden 209 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.
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.

Sales history 1

Last sold for £2,400,000 in August 2025. Terraced house, leasehold.

19 August 2025£2,400,000

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

Building

Floor area135 m² (1,453 sq ft)
Energy ratingG (19 out of 100), could reach D
PropertyEnclosed mid-terrace house, 4 habitable rooms
BuiltBefore 1900
HeatingRoom heaters, electric
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in April 2025, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

22 May 2026Approved

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Important details

Council
Westminster
Application type
Approval of Details (Full PP)
Postcode
W1H 7ET
Received
2 Jun 2026
Validated
2 Jun 2026
Ward
Marylebone
Case officer
Show
Target decision
28 Jul 2026
Decision
Application Permitted
Decision date
16 Jun 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Edwards Wilson

Consultation & key dates

Alt. reference
PP-14980418
Planning Portal ref
PP-14980418
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
Rutland Court 64 Upper Berkeley Street London W1H 7QT
Installation of a single wrought iron gate at the entrance to the passageway leading to a…
25/06129/FULL
2025 Approved
26 Montagu Mews South London W1H 7ES
Replacement of garage doors with timber windows.
25/05187/FULL
2025
Basement And Ground Floor 67 Upper Berkeley Street London W1H 7QX
Display for a temporary period of six months of a non-illuminated estate agent board loca…
25/07459/AD7
2025
Basement And Ground Floor 67 Upper Berkeley Street London W1H 7QX
Display for a temporary period of six months of a non-illuminated estate agent board loca…
25/07458/AD7
2025
42 Great Cumberland Place London W1H 7TP
Repair of six vaults and associated works.
25/07213/LBC
2025
Flat 2 68 Upper Berkeley Street London W1H 7QY
Internal alterations to the first floor flat with the inclusion of a new boiler flue pene…
25/06603/LBC
2025 Approved
8 Montagu Mews South London W1H 7ER
Gas meter relocation to the front facade
25/04796/FULL
2025 Withdrawn
26 Montagu Mews South London W1H 7ES
Alteration of existing coach house/garage to kitchen and living room with new painted tim…
25/04074/CLOPUD
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
2 Wallenberg Place City Of Westminster London W1H 7TN
Details of two externally illuminated lettering fascia sign measuring 1490mm x 160mm and…
25/01328/ADV
2025
Flat 4 1 Bryanston Square London W1H 2DH
Internal alterations including new partitions, joinery and cornices, kitchen and bathroom…
25/01336/LBC
2025
2 Wallenberg Place City Of Westminster London W1H 7TN
Details of two externally illuminated lettering fascia sign measuring 1490mm x 160mm and…
25/01293/LBC
2025
12 Upper Berkeley Street London W1H 7QD
Display for a temporary period of six months of a non-illuminated estate agent board atta…
25/01287/AD7
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
2025
37 Great Cumberland Place London W1H 7TD
Installation of a water misting system throughout the building.
25/00930/LBC
2025
37 Great Cumberland Place London W1H 7TD
Introduction of three new anchor posts on the main roof and additional concealed eye bolt…
25/00916/LBC
2025
2 Wallenberg Place City Of Westminster London W1H 7TN
Replacement of external doors on rear elevation facing Quebec Mews. (Linked with 25/00711…
25/00710/FULL
2025
2 Wallenberg Place City Of Westminster London W1H 7TN
Replacement of external doors on rear elevation facing Quebec Mews. (Linked with 25/00710…
25/00711/LBC
2018 Refused
Flat 4 1A Bryanston Square London W1H 2DH
Erection of single storey roof extension to create new 4th floor level and enlarge existi…
18/08959/FULL
2018 Approved
Flat 2 62 Montagu Square London W1H 2LU
Internal alterations at first and second floor levels including rebuilding the staircase…
18/07287/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
11 Upper Berkeley Street London W1H 7QB
Internal alterations including removal of existing dado rail to the right of the Second F…
18/02986/LBC
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

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

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.