Northumberland House 155 - 157 Great Portland Street London W1W 6QP Data via plota.co.uk

26/04985/FULL - Full Planning Permission Application Pending
Extensions & alterations

Proposal

Replacement of entrance door. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
24 Jul 2026
✓
Consultation
11 Aug 2026
Decision
Expected by 18 Sept 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 15 Sept 2026, from Westminster's recent extensions. The consultation period closed on 9 Sept 2026.

Documents 11

Statements & assessments 1

PDF HERITAGE STATEMENT Design and Access Statement · 24 Jul 2026 View ↗

Plans & drawings 7

PDF SITE LOCATION PLAN Location Plan · 24 Jul 2026 View ↗ PDF EXISTING BLOCK PLAN Location Plan · 24 Jul 2026 View ↗ PDF PROPOSED BLOCK PLAN Drawing · 24 Jul 2026 View ↗ PDF EXISTING AND PROPOSED GA PLANS Drawing · 24 Jul 2026 View ↗ PDF PROPOSED 3D VISUAL Drawing · 24 Jul 2026 View ↗ PDF EXISTING AND PROPOSED NORTH EAST ELEVATION Drawing · 24 Jul 2026 View ↗ PDF MAIN ENTRANCE DOOR DETAILS Drawing · 24 Jul 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 24 Jul 2026 View ↗

Other documents 2

PDF RECEIPT OF APPLICATION Other · 27 Jul 2026 View ↗ PDF COVER LETTER Background Papers · 24 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 6

Grade II listed: General Medical Council
List entry 1229240 · 20 m from the pin · 7 more listed buildings within 150 m (3 Grade II*, 4 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 7 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 ↗
2 Article 4 directions
Article 4 Basement Development Permitted Rights Removed · Article 4 Direction Class E To C3 In Central Activities Zone. Named permitted development rights are withdrawn here.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 ↗
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
Inside the City of Westminster built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 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
W1W 6QP
Received
24 Jul 2026
Validated
24 Jul 2026
Ward
West End
Case officer
Show
Target decision
18 Sept 2026
Agent
Savills (UK) Limited

Decision outlook

Day 52 of the 56-day target. Westminster usually decides extensions by day 53.

Day 524 days to the 56-day target
62%decided within 8 weeks
87%approved
930decided 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.

18 neighbours consulted · Last counted 12 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14928536
Comments by
9 Sept 2026
Site or press notice
11 Aug 2026
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 Refused
Amendments to planning permission dated 12th November 2024 (RN 24/06018/FULL) for the Alt…
25/00221/NMA
2024
Alterations to the entrance at ground floor level and installation of plant with screenin…
24/06018/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
167 - 169 Great Portland Street London W1W 5PA
External works comprising alterations to ground floor entrance and shopfront including in…
25/07527/FULL
2025
Hallam Street London
Display of one non illuminated fascia sign measuring 0.375m x 1.015m located beneath Cave…
25/07298/ADV
2025 Refused
167 - 169 Great Portland Street London W1W 5PA
External works comprising alterations to ground floor entrance and shopfront including in…
25/05704/FULL
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
Hampden House 2 Weymouth Street London W1W 5BT
Variation of Condition 1 and 12 of planning permission dated 11 October 2023 (RN:23/02110…
25/02173/FULL
2025
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Internal and external alterations including internal layout alterations, refurbishment an…
25/01205/LBC
2025
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Internal and external alterations including internal layout alterations, refurbishment an…
25/01204/FULL
2025
48 Portland Place London W1B 1NN
Pitched and flat roof repairs, external render repairs and redecoration, timber window re…
25/00294/LBC
2022 Withdrawn
First Floor Northumberland House 155-157 Great Portland Street London W1W 6QP
Installation of three air conditioning compressors on flat roof at rear first floor level.
22/00733/FULL
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
Tennyson House 159 - 165 Great Portland Street London W1W 5PA
Alterations to ground floor entrance; installation of plant equipment at roof level; and…
24/07581/FULL
2024
167 - 169 Great Portland Street London W1W 5PA
External works comprising alterations to ground floor entrance; installation of plant equ…
24/07573/FULL
2024
Devon House 171 - 177 Great Portland Street London W1W 5PQ
Alterations to existing facade comprising reconfiguration of existing entrances and shopf…
24/07574/FULL
2024 Approved
De Walden Court 85 - 89 New Cavendish Street London W1W 6XD
Display for a temporary period of six months of a non-illuminated 'to let' board attached…
24/06732/AD7
2024
Threeways House 40 - 44 Clipstone Street London W1W 7EB
Installation of plant equipment at roof level and installation of louvres within existing…
24/06902/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
2017 Approved
Northumberland House 155-157 Great Portland Street London W1W 6QP
Installation of one air conditioning unit at roof level.
17/08011/FULL
2017 Approved
151 - 153 Great Portland Street London W1W 6QW
Installation of replacement shopfront.
17/06774/FULL
2017 Approved
48 Portland Place London W1B 1NG
Use of the basement, ground and ground floor mezzanine and first floors as three resident…
17/06996/LBC
2017 Approved
48 Portland Place London W1B 1NG
Use of the basement, ground and ground floor mezzanine and first floors as three resident…
17/06995/FULL
2017 Approved
190 Great Portland Street London W1W 5QZ
Use of the public highway for the placing of five tables and 10 chairs in two areas measu…
17/06370/TCH
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