21 Westmoreland Street London W1G 8PN Data via plota.co.uk

26/06690/ADFULL - Approval of Details (Full PP) Pending
Admin / procedural

Proposal

Detailed drawings showing reduction in height of the terrace screening on the northern side of the terrace to match the existing height. The detailed design of the screening must also be amended to be trellis type design with reduced solidity; pursuant to condition 8 of planning permission dated 17th April 2025 () Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
30 Sept 2026
Decision
Expected by 25 Nov 2026

Under consideration

No decision has been issued yet. A decision is expected by 25 Nov 2026.

Documents 4

Plans & drawings 2

PDF PROPOSED TRELLIS DETAILS Drawing · 30 Sept 2026 View ↗ PDF PROPOSED FIRST FLOOR PLAN Drawing · 30 Sept 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 30 Sept 2026 View ↗

Other documents 1

PDF RECEIPT OF APPLICATION Other · 5 Oct 2026 View ↗

All documents on the council site ↗

Associated applications 2

  • Part of

    Fullcouncil archive

    Conditions 8 awaiting decision

    • ConditionsDetailed drawings showing reduction in height of the terrace screening on the northern side…This application26/06690/ADFULL

Site constraints 10

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 Named permitted development rights are withdrawn here.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.
Archaeological priority area: City of Westminster APA 2.6
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
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 ↗
25 listed buildings within 150 m
Nearest: 45-49, Weymouth Street, Grade II, 19 m away · 25 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 25 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 353 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; Town centre 7 m away: Marylebone High Street.
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.

Sales history 1

Last sold for £5,625,000 in November 2023. Terraced house, freehold.

1 November 2023£5,625,000

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

Building

Floor area232 m² (2,497 sq ft)
Energy ratingD (57 out of 100), could reach C
PropertyEnd-terrace house, 10 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in January 2018, 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
Approval of Details (Full PP)
Postcode
W1G 8PN
Received
30 Sept 2026
Validated
30 Sept 2026
Ward
Marylebone
Case officer
Show
Target decision
25 Nov 2026
Applicant
Show
Agent
Tigg Coll Architects

Public comments

No public comments yet.

Last counted 6 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15261098
Planning Portal ref
PP-15261098
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Renovation of the entrance steps to 19 and 21 Wesley Street, reducing number of steps fro…
25/05280/FULL
2024
Lowering of lower ground floor level; replacement garage flat roof at raised level; repla…
24/07696/FULL
Within ~100m

Nearby activity

2025
56 - 60 Weymouth Street London W1G 6NX
Installation of a green roof and external rooftop plant / machinery with associated acous…
25/06552/FULL
2025
47 Weymouth Street London W1G 8NE
Rear extension at basement level and extension of the roof terrace at first floor level.
25/06502/LBC
2025 Approved
Flat 15 Maybury Court Marylebone Street London W1G 8JF
Replacement of single-glazed timber casement windows with like-for-like timber casement w…
25/04436/FULL
2025 Approved
Basement And Ground Floor 65 Weymouth Street London W1G 8NU
Display of externally illuminated fascia sign measuring 1.5m X 0.28m
25/04854/ADV
2025
4 Clarke's Mews London W1G 6QN
Installation of one air conditioning unit at roof level
25/05464/FULL
2025 Approved
31 New Cavendish Street London W1G 9TT
Display of non-illuminated fascia sign measuring 1200mm x 315mm, and non illuminated proj…
25/01214/ADV
2025
16 De Walden Street London W1G 8RN
Variation of condition 1 of planning permission dated 7th October 2024 (RN:24/04641/FULL)…
25/00187/FULL
2024
16 - 18 Westmoreland Street London W1G 8PH
Installation of ventilation ducting to support Air Handling Unit upgrade works. (Temporar…
24/06586/FULL
2024
56 - 60 Weymouth Street London W1G 6NX
Replacement of two existing louvres within rear elevation at fourth floor level with wind…
24/06544/FULL
2024
Marylebone High Street London
Display of illuminated Christmas street decorations along Marylebone High Street, Maryleb…
24/04954/ADV
2024
16 De Walden Street London W1G 8RN
Internal remodelling of 1st and 2nd floors, demolition of existing roof pod and construct…
24/04641/FULL
2024
27 Marylebone High Street London W1U 4PH
Installation of replacement single glazed steel casement windows to upper floors with tri…
24/04584/FULL
2024 Approved
53 Wimpole Street London W1G 8YH
Installation of commemorative blue plaque to Wimpole Street elevation.
24/01930/LBC
2024 Refused
1 Beaumont Street London W1G 6DF
Proposed alterations to Clarke's Mews and Dunstable Mews including installation of new ar…
24/01070/FULL
2024
29A New Cavendish Street London W1G 9UE
Removal of glass sliding roof box and replacement with lead-clad stair enclosure.
24/03009/FULL
2024
1 Beaumont Street London W1G 6DF
Alterations at first floor level at the rear of the building to introduce a new mezzanine…
24/02902/FULL
2024 Approved
24 De Walden Street London W1G 8RN
Refurbishment of 24 & 26 De Walden Street, including new double glazed windows, replaceme…
24/00292/FULL
2024 Approved
27 Marylebone High Street London W1U 4PH
Display of two non-illuminated fascia signs measuring 35cm x 200cm; and a non-illuminated…
24/00311/ADV
2023 Refused
1 Beaumont Street London W1G 6DF
Proposed alterations to third floor mansard roof to create a sheer front elevation. Rear…
23/08408/FULL
2023 Approved
16-18 Westmoreland Street London W1G 8PH
Installation of two temporary boiler units with acoustic blankets sited within three park…
23/08586/FULL
2018 Refused
8 Dunstable Mews London W1G 6BT
Replacement of front and rear elevation windows with timber windows, re-alignment of RWG…
18/04084/CLOPUD
2018 Approved
27 Marylebone High Street London W1U 4AD
Display of digital screen behind the shopfront measuring 1.13m x 0.68m.
18/03743/ADV
2018 Approved
Maybury Court Marylebone Street London W1G 8JF
1 x cherry: reduce crown by approximately 20-25%, remove dead wood and thin crown density…
18/01524/TCA
2017 Refused
50 Weymouth Street London W1G 6NT
Erection of a mansard roof extension at rear second floor level (in Beaumont Mews) to cre…
17/10719/FULL
2018 Approved
25 Marylebone High Street London W1U 4PQ
Display of an externally illuminated fascia sign measuring 0.40m x 5.0m and an externally…
18/01837/ADV
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.

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.