House 1 42 Bell Street London NW1 5AW Data via plota.co.uk

26/03089/FULL - Full Planning Permission Application Pending
Extensions & alterationsNew homes

Proposal

Erection of two additional floors and installation of a lift and new stairs to central courtyard at first floor level and conversion of the three five-storey houses to form nine new flats together with alterations to stairs and installation of bin and cycle stores within the central courtyard of the site. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
11 May 2026
✓
Validated
25 Jun 2026
Decision
Target date was 20 Aug 2026

Under consideration

No decision has been issued yet. Plota predicted a decision around 28 Oct 2026; it is now day 125.

The consultation period closed on 5 Aug 2026.

Documents 38

Statements & assessments 5

PDF DESIGN AND ACCESS STATEMENT Design and Access Statement · 25 Jun 2026 View ↗ PDF SUSTAINABLE DESIGN STATEMENT MAY 2026 Background Papers · 11 May 2026 View ↗ PDF DLSL ASSESSMENT BELL STREET LONDON Background Papers · 11 May 2026 View ↗ PDF BREEAM PRE-ASSESSMENT REPORT - R2 Background Papers · 11 May 2026 View ↗ PDF AIR QUALITY - BELL STREET WESTMINSTER F1 Air quality assessment · 11 May 2026 View ↗

Plans & drawings 20

PDF LOCATION PLAN Location Plan · 11 May 2026 View ↗ PDF BASEMENT 02 - FLOOR PLAN AS EXISTING Drawing · 11 May 2026 View ↗ PDF BASEMENT 01 FLOOR PLAN AS EXISTING Drawing · 11 May 2026 View ↗ PDF GROUND FLOOR PLAN AS EXISTING Drawing · 11 May 2026 View ↗ PDF FIRST FLOOR PLAN AS EXISTING Drawing · 11 May 2026 View ↗ PDF SECOND FLOOR PLAN AS EXISTING Drawing · 11 May 2026 View ↗ PDF FRONT ELEVATION AS EXISTING Drawing · 11 May 2026 View ↗ PDF REAR ELEVATION - AS EXISTING Drawing · 11 May 2026 View ↗ PDF SECTION A-A - AS EXISTING Drawing · 11 May 2026 View ↗ PDF SECTION B-B - AS EXISTING Drawing · 11 May 2026 View ↗ PDF BASEMENT 02 PLAN AS PROPOSED Drawing · 11 May 2026 View ↗ PDF BASEMENT 01 FLOOR PLAN AS PROPOSED Drawing · 11 May 2026 View ↗ PDF GROUND FLOOR PLAN AS PROPOSED Drawing · 11 May 2026 View ↗ PDF FIRST FLOOR PLAN AS PROPOSED Drawing · 11 May 2026 View ↗ PDF SECOND FLOOR PLAN AS PROPOSED Drawing · 11 May 2026 View ↗ PDF THIRD AND FOURTH FLOOR PLAN - AS PROPOSED Drawing · 11 May 2026 View ↗ PDF FRONT ELEVATION - AS PROPOSED Drawing · 11 May 2026 View ↗ PDF REAR ELEVATION - AS PROPOSED Drawing · 11 May 2026 View ↗ PDF SECTION A-A - AS PROPOSED Drawing · 11 May 2026 View ↗ PDF SECTION B-B - AS PROPOSED Drawing · 11 May 2026 View ↗

Application forms 1

PDF APPLICATION FORM REDACTED Application Form · 11 May 2026 View ↗

Consultation & comments 3

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 6 Jul 2026 View ↗ PDF ECNSLT-STD EXT CONSULTEES Background Papers · 6 Jul 2026 View ↗ PDF INVALID CHASER LETTER (14 DAY RESPONSE) Background Papers · 25 Jun 2026 View ↗

Other documents 9

PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 6 Jul 2026 View ↗ PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 6 Jul 2026 View ↗ PDF ECNSLT-INTERNAL CONSULTS Background Papers · 6 Jul 2026 View ↗ PDF ECNSLT-INTERNAL CONSULTS Background Papers · 6 Jul 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 6 Jul 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 28 May 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 14 May 2026 View ↗ PDF ATTACHMENT SUMMARY Background Papers · 11 May 2026 View ↗ PDF DESIGN ACCESS - ADD FLOORS REAR HOUSES - MAY 2026 Superseded document · 11 May 2026 View ↗

All documents on the council site ↗

Site constraints 8

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 ↗
6 listed buildings within 150 m
Nearest: King Solomon Academy, Grade II*, 33 m away · 2 Grade II*, 4 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 6 with distances
Historic England ↗
Conservation area 7 m away: Lisson Grove
The edge of the area; work outside it can still affect its setting.
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 ↗
Also on the record
National infrastructure project 751 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 54 m away: Edgware Road/Church Street.
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.

Building

Floor area219 m² (2,357 sq ft)
Energy ratingD (68 out of 100), could reach C
PropertyEnd-terrace house, 8 habitable rooms
Built2007 to 2011
HeatingElectric underfloor heating
WallsCavity wall, as built, insulated (assumed)

From the energy performance certificate lodged in July 2020, 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
NW1 5AW
Received
11 May 2026
Validated
25 Jun 2026
Ward
Church Street
Case officer
Show
Target decision
20 Aug 2026
Applicant
Show
Agent
RHA Architects Limited

Decision outlook

Day 125, 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 27 Oct 2026.

Day 12569 days past 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

8comments received
8 objecting

100% object · above the UK average of 74%

109 neighbours consulted · Last counted 27 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14925465
Planning Portal ref
PP-14925465
Comments by
5 Aug 2026
Site or press notice
15 Jul 2026
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
Basement To First Floor Rear 63 Lisson Street London NW1 5DA
Conversion of commercial unit into 2 x self-contained flats, together with alterations to…
25/03614/FULL
2025 Approved
27 - 37 Bell Street London NW1 5BY
Display of gallery signage on the brick wall for temporary period of two years for period…
25/01741/ADV
2025
Basement To First Floor Rear 63 Lisson Street London NW1 5DA
Conversion of commercial unit into 2 x self-contained flats, together with alterations to…
25/00934/FULL
2024
King Solomon Academy Penfold Street London NW1 6RX
Installation of metal panel artworks by artist Norman Ackroyd RA CBE on Penfold Street fr…
24/08357/FULL
2024
Basement To First Floor Rear 63 Lisson Street London NW1 5DA
Replacement of front window with 2 x sash windows, enlargement of front basement window t…
24/04885/FULL
2024
Basement And Ground Floor 67 - 69 Bell Street London NW1 6SX
Change of use of the ground floor and basement flat to short term rental/holiday let.
24/04582/FULL
2024
62 Bell Street London NW1 6SP
Use of basement and ground floors as a nail salon business (Class E(c)(iii))
24/03538/CLOPUD
2024 Approved
41-43 Bell Street London NW1 5BY
Continued use as exhibition space in conjunction with Lisson Gallery for temporary period…
24/01699/FULL
2024
Basement Floor And Ground Floor Front 57 Lisson Street London NW1 5DA
Construction of a lightwell at the front of the property and a new double door at the bas…
24/02698/FULL
2023 Approved
King Solomon Academy Penfold Street London NW1 6RX
Installation of 145 solar panels on the Sports Hall of King Solomon Academy-Older Years S…
23/08823/LBC
2023 Approved
King Solomon Academy Penfold Street London NW1 6RX
Installation of 145 solar panels on the Sports Hall of King Solomon Academy-Older Years S…
23/08822/FULL
2023 Refused
58 Bell Street London NW1 6SP
Excavation of a basement beneath rear section of the building and lowering of existing ba…
23/01162/FULL
2022 Approved
Flat 4 Aquarius House 57A Lisson Street London NW1 5DA
Installation of three timber framed, double glazed windows to the rear.
22/02438/FULL
2022 Approved
Hampstead Lodge 77-81 Bell Street London NW1 6TA
Replacement of existing entrance door with security door
22/01621/FULL
2022
House 1, House 2 And House 3 42 - 48 Bell Street London NW1 5AW
Erection of single storey extension and stairs to central courtyard at first floor level…
22/02219/FULL
2022 Approved
41-43 Bell Street London NW1 5BY
Continued use as exhibition space in conjunction with Lisson Gallery for temporary period…
22/00483/FULL
2021 Withdrawn
King Solomon Academy Penfold Street London NW1 6RX
Partial replacement and wholesale refurbishment of windows and doors to main hall block a…
21/08401/COLBC
2021
King Solomon Academy Penfold Street London NW1 6RX
Partial replacement and wholesale refurbishment of windows and doors to main hall block a…
21/08401/LBC
2021 Refused
House 1, House 2 And House 3 42 - 48 Bell Street London NW1 5AW
Erection of single storey extension and stairs to central courtyard at first floor level…
21/01936/FULL
2021 Approved
50 Lisson Street London NW1 5DF
Use of third floor of the existing building as residential dwelling (Class C3).
21/01924/FULL
2016 Approved
41-43 Bell Street London NW1 5BY
Temporary display of public art on boundary wall to Bell Street and Penfold Street until…
16/06591/ADV
2016 Approved
52 Lisson Street London NW1 5DF
Replacement of main entrance doors on the Lisson Street facade (Retrospective application…
16/01493/FULL
2016 Approved
27 Bell Street London NW1 5BY
Use of 27-37 Bell Street as gallery (exhibition space, administration offices, workshops…
16/00860/FULL
2016 Approved
41-43 Bell Street London NW1 5BY
Temporary display of public art on boundary wall to Bell Street and Penfold Street until…
16/00324/ADV
2016 Approved
41-43 Bell Street London NW1 5BY
Use of vacant land as an exhibition space in conjunction with the Lisson Gallery for a te…
16/00859/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

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.