128 Park Lane London W1K 7AE Data via plota.co.uk

26/05290/FULL - Full Planning Permission Application Pending
Extensions & alterations

Proposal

Replacement of the existing roof with a mansard roof structure to extend the accessible area into roof terrace with an improved entrance to the plant room. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
5 Aug 2026
✓
Validated
28 Sept 2026
Decision
Expected by 23 Nov 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision between 18 Nov 2026 and 27 Nov 2026, from Westminster's recent extensions.

Documents 19

Statements & assessments 5

PDF SUSTAINABLE AND HERITAGE REPORTS Background Papers · 28 Sept 2026 View ↗ PDF DESIGN AND ACCESS STATEMENT-REV- PART 1 Design and Access Statement · 5 Aug 2026 View ↗ PDF DESIGN AND ACCESS STATEMENT REV- PART 2 Design and Access Statement · 5 Aug 2026 View ↗ PDF DESIGN AND ACCESS STATEMENT REV- PART 3 Design and Access Statement · 5 Aug 2026 View ↗ PDF SUSTAINABLE REPORT Background Papers · 5 Aug 2026 View ↗

Plans & drawings 7

PDF LOCATION PLAN Drawing · 5 Aug 2026 View ↗ PDF LOCATION PLAN Drawing · 5 Aug 2026 View ↗ PDF PROPOSED FOURTH FLOOR Drawing · 5 Aug 2026 View ↗ PDF EXISTING AND PROPOSED DRAWINGS Drawing · 5 Aug 2026 View ↗ PDF PROPOSED ROOF PLAN Drawing · 5 Aug 2026 View ↗ PDF ROOFEXTENSION -REV- Drawing · 5 Aug 2026 View ↗ PDF - SECTIONS Drawing · 5 Aug 2026 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 5 Aug 2026 View ↗ PDF FEECALCULATION Background Papers · 5 Aug 2026 View ↗

Other documents 5

PDF 2ND INVALID LETTER Background Papers · 9 Sept 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 11 Aug 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 11 Aug 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 5 Aug 2026 View ↗ PDF APPLICANTS COVER LETTER Background Papers · 5 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 11

Grade II listed: 129, Park Lane W1
List entry 1226029 · 28 m away · 23 more listed buildings within 150 m (2 Grade II*, 21 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 23 with distances
Historic England ↗
Mayfair 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 2.5
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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
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.
Registered park or garden 90 m away: Hyde Park
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
Inside the City of Westminster built-up area; Metropolitan Open Land 29 m away; Town centre 67 m away: West End.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 30 September 2026. Historic England, the Environment Agency, Natural England 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.

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Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
W1K 7AE
Received
5 Aug 2026
Validated
28 Sept 2026
Ward
West End
Case officer
Show
Target decision
23 Nov 2026
Applicant
Show

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
1,673decided 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 30 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15032862
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2020 Approved
Replacement of the existing roof with a mansard roof structure and the creation of a roof…
20/05365/FULL
2017 Approved
Details pursuant to conditions 5 and 7 of planning permission dated 29 August 2012 (RN: 1…
17/09639/ADFULL
2017 Approved
Replacement of the existing roof with a mansard roof structure and the creation of a roof…
17/07537/FULL
2016 Withdrawn
Erection of a single storey ground floor extension with terrace fronting on to Green Stre…
16/07238/FULL
2016 Approved
Construction of conservatory on ground level and installation of canopy on the Green Stre…
16/04117/FULL
Within ~100m

Nearby activity

2025
Green Street Garden Wood's Mews London W1K 7DL
T39 - Cotoneaster sp. (Tree Cotoneaster): RVX - Remove specified limb(s) - removing the l…
25/08029/TCA
2025
138 Park Lane London W1K 7FF
Internal alterations to part basement and part ground floor levels of 138 Park Lane.
25/07067/LBC
2025
12 North Row London W1K 7DF
Installation of an external decked terrace and landscaping to the front of restaurant (re…
25/07038/LBC
2025
12 North Row London W1K 7DF
Installation of an external decked terrace and landscaping to the front of restaurant (re…
25/07037/FULL
2025 Approved
Flat 2 131 - 132 Park Lane London W1K 7AD
Erection of a single storey extension within rear lightwell and installation of privacy s…
25/04799/LBC
2025 Approved
Flat 2 131 - 132 Park Lane London W1K 7AD
Erection of a single storey extension within rear lightwell and installation of privacy s…
25/04798/FULL
2025 Approved
Green Street Garden Wood's Mews London W1K 7DL
2 x Norway maple (T32 & T34): Prune to clear the building and side wall by 1.5 m
25/04443/TCA
2025
537 Oxford Street London W1C 2QP
Amalgamation of 2 x ground floor retail units and a basement nightclub into a single reta…
25/02839/FULL
2025
537 Oxford Street London W1C 2QP
Use of the basement and ground floor level retail units, in connection with existing nigh…
25/02840/LBC
2025
12 North Row London W1K 7DF
Installation of an external decked terrace to the front of restaurant (retrospective). (L…
25/01342/LBC
2025
12 North Row London W1K 7DF
Reinstatement of a Previously Installed External Paved Terrace at the front of a restaura…
25/01341/FULL
2024
39 Green Street London W1K 7FW
Erection of a rear roof extension at fifth floor and installation of an additional flight…
24/08513/FULL
2024
27 Green Street London W1K 7AZ
Proposed new partial infill lower ground floor single storey rear extension including gro…
24/08262/FULL
2024
North Row Buildings North Row London W1K 7DG
1 x cherry (T4): fell.
24/05608/TDD
2024
North Row Buildings North Row London W1K 7DG
1 x cherry (T4): fell
24/04956/TCA
2024
19 Dunraven Street London W1K 7EF
Installation of structural steelwork in under-pavement vaults, repairs to pavement coal-p…
24/03535/LBC
2024 Approved
Avenfield House 118-127 Park Lane London W1K 7AF
Variation of condition 1 of planning permission dated 25 November 2022 (RN: 22/06879/FULL…
24/01017/FULL
2021 Approved
529 - 533 Oxford Street London W1C 2QL
Use of ground floor and mezzanine level as a food court including provision for on and of…
21/07776/FULL
2024
14 North Row London W1K 7DQ
Display of temporary non -illuminated advertsiment affixed to construction hoarding measu…
24/01168/ADV
2023 Approved
132 Park Lane London W1K 1PS
Erection of a single storey extension at rear lower ground floor level to provide additio…
23/05999/FULL
2016 Approved
Basement To Mezzanine Floors 12 North Row London W1K 7DF
Use of the public highway for the placing of six tables and 18 chairs in an area measurin…
16/02855/TCH
2016 Approved
12 North Row London W1K 7DF
Installation of kitchen extract and air conditioning plant with associated screening on f…
16/00951/FULL
2016 Approved
12 North Row London W1K 7DF
Installation of kitchen extract and air conditioning plant with associated screening on f…
16/00952/LBC
2016 Approved
Green Street Garden Wood's Mews London W1K 7DL
1 x Platanus x hispanica (London Plane T36): Remove damaged limb from main stem at 7m.
16/03409/TCA
2016 Approved
Flat 2 Warburton House 4 Dunraven Street London W1K 7FQ
Installation of a new window opening at rear ground floor level.
16/01622/FULL
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