46 Portland Place London W1B 1NF Data via plota.co.uk

Pending 26/04113/LBC
Extensions & alterationsListed buildings
Council
Westminster 3.5/10
Date received
22 Jun 2026
Date validated
22 Jun 2026
Postcode
W1B 1NF

Description

Installation of replacement all non-original windows and relevant external glazed doors with new painted windows and new glazed painted external doors together with reinstatement of suitable joinery profiles throughout. Data via plota.co.uk

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Last checked

Decision outlook

Plota predicted a decision around 9 Oct 2026; it is now day 109.

Day 109, past the statutory target. 84% of extensions in Westminster are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 24 Aug 2026.

Day 10953 days past the 56-day target
56%decided within 8 weeks
88%approved
1,674decided in the last year

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

Associated applications 2

Site constraints 9

Grade II* listed: 34-52, Portland Place W1
List entry 1227025 · The pin is inside its outline · 23 more listed buildings within 150 m (10 Grade II*, 13 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 ↗
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 Named permitted development rights are withdrawn here.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.
Protected view corridor: 4A.2 Primrose Hill summit to the Palace of Westminster
Inside the landmark viewing corridor of a protected vista. A building that rises above the corridor's threshold height should be refused. How high that is depends on where along the view the site is.
The London Plan (policy HC4) designates strategic views, and the Mayor's London View Management Framework (March 2012) gives 13 of them a protected vista toward St Paul's Cathedral, the Palace of Westminster or the Tower of London. A vista has a threshold height that rises or falls with the line of sight. In the landmark viewing corridor, a building above it would harm the view and should be refused. In the wider setting consultation area around the corridor, a building above it is referred for consultation and its effect on the view is judged. The threshold changes along each view and is set out in the framework. A revised framework is out for consultation until 4 December 2026 and is not yet in force.
London View Management Framework ↗
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 1861 m away: Thames Tideway Tunnel; 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 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.

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Other new applications on this street

10 Sept 2026Pending

15 Portland Place London W1B 1PT

Amendments to planning permission dated 21 July 2022 (RN:22/03521/FULL) which va...

26/06211/NMA
30 Jul 2026Approved

1 Portland Place London W1B 1PR

Detailed drawings of visual screening for the new plant in the front area lightw...

26/05148/ADFULL
24 Jul 2026Withdrawn

Royal Institute Of British Architects 66 Portland Place London W1B 1AD

Details of installation of services and related fixtures pursuant to condition 8...

26/04967/ADLBC
6 Jul 2026Pending

63 - 65 Portland Place London W1B 1QR

Details of a management plan pursuant to condition 6 of planning permission date...

26/04498/ADFULL

Nearby new applications

5 Oct 2026Pending

The Court PH 108A Tottenham Court Road London W1T 5AA

Display of 2 x externally illuminated (trough-lit) fascia signs (items 1 & 2), 1...

2026/3488/A
2 Oct 2026Pending

196 - 198 Oxford Street London W1D 1NT

Replacement of shopfront.

26/06745/FULL
2 Oct 2026Pending

Flat C 25 Fitzroy Square London W1T 6ER

Various internal works, including alterations to staircase, relocation of WC on ...

2026/4276/L
28 Sept 2026Pending

Open Space Manchester Square London W1U 3HQ

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14 Sept 2026Pending

Harley Street Underground Car Park Queen Anne Mews London W1G 9HF

Installation of a height restriction barrier to the entrance ramp of the car par...

26/06271/FULL
30 Sept 2026Pending

22 Harley Street London W1G 9PL

External alterations to the front, side and rear elevations, and erection of a r...

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Historical activity at this location

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

This property

Previous applications at this address

2019 Approved
Details pursuant to condition 18 of planning permission dated 24 August 2017 (RN: 17/0370…
19/00873/ADFULL
2018 Approved
Details pursuant to Condition 7 of listed building consent dated 8 November 2017 (RN: 17/…
18/05482/ADLBC
2018 Approved
Details pursuant to Condition 16 of planning permission dated 8 November 2017 (RN: 17/037…
18/05352/ADFULL
2017 Approved
Installation of secondary glazing to all the rear windows, including the windows that sur…
17/11312/LBC
2017 Approved
Variation of condition 1 of planning permission dated 29 April 2016 (RN 14/12563/FULL) fo…
17/03704/FULL
2017 Approved
Variation of condition 1 of listed buildijng consent dated 29 April 2016 (RN 14/12564/LBC…
17/03940/LBC
2017 Approved
Replacement windows on front facade and enlargement of a lower ground floor window.
17/02029/LBC
2017 Approved
Replacement windows on front elevation and enlargement of a lower ground floor window.
17/02028/FULL
2017 Withdrawn
Variation of Condition 1 of planning permission dated 29 April 2016 (14/12563) for: Demol…
17/00590/FULL
2017 Withdrawn
Variation of Condition 1 of listed building consent dated 29 April 2016 (RN: 14/12564/LBC…
17/00603/LBC
2017 Withdrawn
Internal alterations at ground and first floor level.
17/00889/LBC
2017 Withdrawn
Variation of Condition 1 of listed building consent dated 29 April 2016 (RN: 14/12564/LBC…
17/02094/LBC
2017 Withdrawn
Internal alterations.
17/02085/LBC
2017 Withdrawn
Variation of Condition 1 of listed building consent dated 29 April 2016 (RN: 14/12564/LBC…
17/02084/LBC
2017 Withdrawn
Variation of condition 1 of planning permission dated 29 April 2015 (RN 14/12564/LBC) for…
17/02079/LBC
2017 Withdrawn
Variation of Condition 1 of planning permission dated 29 April 2016 (RN: 14/12563/FULL) f…
17/02027/FULL
2017 Withdrawn
Variation of condition 1 of planning permission dated 29 April 2015 (RN 14/12563/FULL) fo…
17/02026/FULL
2017 Withdrawn
Variation of Condition 1 of planning permission dated 29 April 2016 (RN: 14/12563/FULL) f…
17/02025/FULL
2017 Approved
Details of waste and cycle storage pursuant to Conditions 3 and 4 of planning permission…
17/02024/ADFULL
2017 Withdrawn
Variation of Condition 1 of planning permission (RN: 14/12563/FULL) dated 29 April 2016 f…
17/00586/FULL
Within ~100m

Nearby activity

2025
52 Portland Place London W1B 1NH
Demolition, refurbishment, restoration and alterations to 52 Portland Place as well as re…
25/08377/LBC
2025
52 Portland Place London W1B 1NH
Demolition, refurbishment, restoration and alterations to 52 Portland Place as well as re…
25/08376/FULL
2025 Approved
50 Hallam Street London W1W 6JJ
Extension of party wall and replacement of single chimney of front chimney stack of 50 Ha…
25/03602/LBC
2025
Hallam Street London
Display of one non illuminated fascia sign measuring 0.375m x 1.015m located beneath Cave…
25/07298/ADV
2025 Withdrawn
Hallam House 56 - 60 Hallam Street London W1W 6JL
Demolition of existing roof plant room and erection of a single floor roof extension abov…
25/03713/FULL
2025
Hallam House 56 - 60 Hallam Street London W1W 6JL
Demolition of existing roof plant room and erection of a single floor roof extension abov…
25/04301/FULL
2025 Approved
47 Portland Place London W1B 1JH
Installation of 8 foam board panels with text and photographs with the dimensions 1000 x…
25/01857/LBC
2025
Ground Floor Rear 43 Portland Place London W1B 1QH
Display for a temporary period of six months of a non-illuminated 'to let' board attached…
25/03454/AD7
2025
47 Portland Place London W1B 1JH
Display of 8 foam board panels with text and photographs with the dimensions 1000 x 730 m…
25/02098/ADV
2025
48 Portland Place London W1B 1NN
Pitched and flat roof repairs, external render repairs and redecoration, timber window re…
25/00294/LBC
2024
Hallam House 56 - 60 Hallam Street London W1W 6JL
Installation of replacement access door to ground floor front elevation at south west cor…
24/07743/FULL
2024
8 Cavendish Mews North London W1W 6LA
Reconfiguration of rear windows and installation of new double glazed sash windows.
24/07017/FULL
2024
41 Portland Place London W1B 1QH
Installation of CCTV cameras on the front and rear elevations at ground and lower ground…
24/06861/LBC
2024
41 Portland Place London W1B 1QH
Installation of CCTV cameras on the front and rear elevations at ground and lower ground…
24/06860/FULL
2024 Approved
Flat 1 50 Hallam Street London W1W 6DE
Creation of an opening between the two properties (Linked 24/02952/FULL)
24/02953/LBC
2024 Refused
Flat 1 50 Hallam Street London W1W 6DE
Amalgamation of two separate residential units to form a single larger residential unit (…
24/02952/FULL
2024
Second Floor Flat 48 Portland Place London W1B 1NG
General internal alterations with hallway cupboard changed into a WC, main bathroom chang…
24/04381/LBC
2024 Approved
Stone House 9 Weymouth Street London W1W 6DB
Use of the lower ground floor (part) and ground floor (part) as 3 flats (Class C3) along…
24/01747/FULL
2024
Flat A 5 Hallam Mews London W1W 6AR
This application is for permission to fell a dead silver birch tree to the rear of the fl…
24/04052/TCA
2024 Approved
4 - 5 Cavendish Mews North London W1W 6LA
Erection of a roof extension and alterations to the front elevation to enlarge and alter…
24/00473/FULL
2018 Approved
48 Portland Place London W1B 1NG
Variation of Condition 1 and removal of Condition 10 of planning permission dated 18 Sept…
18/04311/FULL
2018 Approved
43 Portland Place London W1B 1QH
Removal of two supporting posts at basement and ground floor levels.
18/03048/LBC
2018 Refused
42 Portland Place London W1B 1NB
Display for a temporary period of six months of a non-illuminated estate agent board loca…
18/01067/AD7
2018 Approved
42 Portland Place London W1B 1NB
Display for a temporary period of six months of a non illuminated estate agent board atta…
18/00833/AD7
2018 Withdrawn
6 Hallam Mews London W1W 6AR
Use of property as two flats (one 1-bed and one 2-bed). Alterations to the front elevatio…
18/00264/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

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