Flat 1 Claremont Court 29 Enford Street London W1H 1DJ Data via plota.co.uk

26/06218/FULL - Full Planning Permission Application Pending
Extensions & alterations

Proposal

Installation of a conservatory (Retrospective) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
10 Sept 2026
✓
Validated
21 Oct 2026
Decision
Expected by 16 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 11 Dec 2026 and 20 Dec 2026, from Westminster's recent extensions.

Documents 10

Statements & assessments 1

PDF HERITAGE ARCHITECTURAL STATEMENTS Background Papers · 21 Oct 2026 View ↗

Plans & drawings 3

PDF LOCATION PLAN Drawing · 10 Sept 2026 View ↗ PDF EXISTING AND PROPOSED GROUND FLOOR, PARTIAL REAR & SIDE ELEVATION Drawing · 10 Sept 2026 View ↗ PDF SITE LOCATION & BLOCK PLAN Drawing · 10 Sept 2026 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 10 Sept 2026 View ↗ PDF FEECALCULATION Background Papers · 10 Sept 2026 View ↗

Other documents 4

PDF 2ND INVALID LETTER Background Papers · 15 Oct 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 18 Sept 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 18 Sept 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 10 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 10

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 Named permitted development rights are withdrawn here.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 ↗
40 listed buildings within 150 m
Nearest: 26-34, Wyndham Street W1, Grade II, 15 m away · 1 Grade I, 39 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 40 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
Heritage at risk 66 m away: Former Samaritans Hospital for Women, 161 Marylebone Road NW1; National infrastructure project 604 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 19 m away: Marylebone Road.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 23 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 5

Last sold for £894,646 in July 2024. Flat or maisonette, leasehold.

15 July 2024£894,646
8 January 2014£710,000
23 August 2010£595,000
19 March 1999£220,000
17 October 1997£210,000New build

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

Building

Floor area78 m² (840 sq ft)
Energy ratingC (79 out of 100), could reach B
PropertyEnclosed mid-terrace flat, 3 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in February 2022, 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
Full Planning Permission Application
Postcode
W1H 1DJ
Received
10 Sept 2026
Validated
21 Oct 2026
Ward
Marylebone
Case officer
Show
Target decision
16 Dec 2026
Applicant
Show
Agent
complete fenestration

Decision outlook

Day 7 of the 56-day target. Westminster usually decides extensions by day 55.

Day 749 days to the 56-day target
56%decided within 8 weeks
88%approved
1,688decided 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 23 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15209948
Planning Portal ref
PP-15209948
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
132 Seymour Place London W1H 1NS
Demolition of existing first floor rear extension and construction of a proposed full wid…
25/05662/FULL
2025 Approved
51 Upper Montagu Street London W1H 1FQ
Internal alterations including lowering of the floor level to the lower ground floor; Ins…
25/03874/FULL
2025 Approved
51 Upper Montagu Street London W1H 1FQ
Internal alterations including lowering of the floor level to the lower ground floor; Ins…
25/03875/LBC
2025
129 - 137 Marylebone Road London NW1 5QD
Replacement of existing 8th floor window with a louvre.
25/06969/FULL
2025 Approved
Flat 10 Bryanston Mansions York Street London W1H 1DA
Replacement windows to the front and rear elevations of Flat 10.
25/04421/FULL
2025
Flat 19 York House 39 Upper Montagu Street London W1H 1FR
Installation of double glazed steel casement windows within the retained existing timber…
25/06040/FULL
2025 Approved
157 - 163 Marylebone Road London NW1 5QH
Replacement of floors to the building on the corner of Seymour Road, Strengthening works…
25/01988/LBC
2024
129 - 137 Marylebone Road London NW1 5QD
Variation of condition 35 of planning permission dated 28th November 2022 (RN:21/06044/FU…
24/08987/FULL
2024
28 Wyndham Street London W1H 1DD
Internal alterations associated with the general refurbishment. (Linked to 24/07855/FULL)
24/07856/LBC
2024
28 Wyndham Street London W1H 1DD
Minor refurbishment and extension of the property by retaining the existing closet wing…
24/07855/FULL
2024 Approved
51 Upper Montagu Street London W1H 1FQ
Investigative opening up works at all floor levels.
24/06878/LBC
2024 Approved
Westar House 139 - 151 Marylebone Road London NW1 5QE
Display of an internally illuminated fascia sign measuring 80cm x 360cm; and an internall…
24/03117/ADV
2024 Refused
29 Knox Street London W1H 1FS
Demolition of an existing single storey extension, and the erection of a single storey re…
24/01731/FULL
2024 Refused
29 Knox Street London W1H 1FS
Demolition of an existing single storey extension, and the erection of a single storey re…
24/01732/LBC
2024 Approved
84 York Street London W1H 1QR
Formation of new single door opening at basement level in party wall between 84 and 86 Yo…
24/00341/LBC
2024
74-76 York Street London W1H 1QN
Refurbishment of ground floor frontage and the installation of an awning.
24/01225/LBC
2024 Approved
124 Seymour Place London W1H 1NS
Replacement brick facade.
24/00123/FULL
2023
84 York Street London W1H 1QR
Formation of new single door opening at Basement Level in Party Wall between No.84 and No…
23/08635/FULL
2023
175-177 Marylebone Road London NW1 5QH
Structural stability works including removal of unsafe fire exit within the rear courtyar…
23/06336/LBC
2023 Approved
Western Eye Hospital Walmer Street London NW1 5QH
Demolition of single storey structure in rear car park and erection of replacement struct…
23/02040/FULL
2016 Withdrawn
51 Upper Montagu Street London W1H 1FQ
Erection of stair access enclosure to existing roof terrace
16/05380/FULL
2016 Approved
Flat 34 York House 39 Upper Montagu Street London W1H 1FR
Replacement of window with glazed door to rear elevation at lower ground floor level.
16/05070/FULL
2016 Approved
North West House 119-127 Marylebone Road London NW1 5PY
Display of 4 halo illuminated fascia signs, an internally illuminated projecting sign, a…
16/01098/ADV
2016 Approved
53 Upper Montagu Street London W1H 1SE
Damp proofing works at basement level.
16/01443/LBC
2016 Withdrawn
York Street Chambers York Street London W1H 1DE
T1 and T2, 2 x Griselinia, reduce in height to 7ft and shape accordingly
16/00770/TCA
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.