167 - 169 Great Portland Street London W1W 5PA Data via plota.co.uk

25/04910/NMA - Non-material amendments Refused

Proposal

Amendments to planning permission dated 17 January 2025 (RN: ) for the: External works comprising alterations to ground floor entrance; installation of plant equipment at roof level and associated works. NAMELY, to allow amendments to the shopfront adjacent to Devon House; amendments to the doorway adjacent to Devon House to accommodate substation; and internal alterations to the layout accommodate substation. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
16 Jul 2025
✗
Refused
25 Jul 2025
Appeal
Not lodged

Refused on 25 Jul 2025 · Delegated Decision · Last checked 28 Oct 2026

Documents 11

Decision & officer reports 2

PDF REFUSAL - NON MATERIAL AMENDMENT Decision Notice · 25 Jul 2025 View ↗ PDF DELEGATED REPORT Report · 25 Jul 2025 View ↗

Plans & drawings 4

PDF PROPOSED GF PLAN Drawing · 16 Jul 2025 View ↗ PDF PROPOSED BF PLAN Drawing · 16 Jul 2025 View ↗ PDF PROPOSED ELEVATIONS Drawing · 16 Jul 2025 View ↗ PDF GREAT PORTLAND STREET - SUBSTATION BAY STUDY Drawing · 16 Jul 2025 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 16 Jul 2025 View ↗

Other documents 4

PDF ACK - NON-MATERIAL AMENDMENT Background Papers · 22 Jul 2025 View ↗ PDF RECEIPT OF APPLICATION Other · 21 Jul 2025 View ↗ PDF 1ST INVALID LETTER Background Papers · 21 Jul 2025 View ↗ PDF COVER LETTER Background Papers · 16 Jul 2025 View ↗

All documents on the council site ↗

Associated applications 3

Site constraints 11

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 Named permitted development rights are withdrawn here.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.
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
8 listed buildings within 150 m; Scheduled monument 233 m away: A subterranean commercial ice-well (City of Westminster), Park Crescent West, W1; Registered park or garden 213 m away: Regent's Park; National infrastructure project 1924 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

Checked on 1 November 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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Important details

Council
Westminster
Application type
Non-material amendments
Postcode
W1W 5PF
Received
16 Jul 2025
Validated
16 Jul 2025
Ward
West End
Case officer
Show
Target decision
13 Aug 2025
Decision
Application Refused
Decision date
25 Jul 2025
Decision level
Delegated Decision
Agent
Savills

How this decision compares

Decided in 9 days from validation, 46 days faster than Westminster's median of 55 for amendments. Refused, as 9% of amendments here are.

53%decided within 8 weeks
91%approved
462decided in the last year

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

Public comments

No public comments yet.

Last counted 28 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14181663
Planning Portal ref
PP-14181663
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
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
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
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Provision of internal fire upgrade works
24/04471/LBC
2024
Northumberland House 155 - 157 Great Portland Street London W1W 6QP
Alterations to the entrance at ground floor level and installation of plant with screenin…
24/06018/FULL
2024
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Installation of 6No. antennas, 2no. 300mm dishes, 3no. cabinets and ancillary works there…
24/05117/LBC
2024
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Installation of 6No. antennas, 2no. 300mm dishes, 3no. cabinets and ancillary works there…
24/05116/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
2016 Withdrawn
66 Portland Place London W1B 1AD
Installation of a temporary public artwork on the front elevation from 12 September 2016…
16/06783/LBC
2016 Withdrawn
66 Portland Place London W1B 1AD
Installation of a temporary public artwork on the front elevation from 12 September 2016…
16/06787/FULL
2016 Approved
18 - 20 Bridford Mews London W1W 5BJ
Variation of conditions 1, 10 and 15 of planning permission dated 10 February 2015 (RN:14…
16/04867/FULL
2016 Refused
66 Portland Place London W1B 1AD
Erection of temporary structure on the raised forecourt on Portland Place for the period…
16/04308/FULL
2016 Approved
179 - 185 Great Portland Street London W1W 5LS
Display of non-illuminated fascia sign measuring 260mm x 2475mm.
16/01162/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