51 Upper Montagu Street London W1H 1FQ Data via plota.co.uk

26/07161/LBC - Listed Building Consent Application Pending
Extensions & alterationsListed buildings

Proposal

Internal alterations to include additional floor lowering within the lower ground floor WC to match the consented level of the other rooms. Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
19 Oct 2026
✓
Validated
23 Oct 2026
Decision
Expected by 18 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 13 Dec 2026 and 22 Dec 2026, from Westminster's recent extensions.

Documents 33

Statements & assessments 6

PDF PLANNING AND DESIGN AND ACCESS STATEMENT Design and Access Statement · 19 Oct 2026 View ↗ PDF NOISE IMPACT ASSESSMENT Noise impact assessment · 19 Oct 2026 View ↗ PDF REASONABLE EXCEPTION STATEMENT Background Papers · 19 Oct 2026 View ↗ PDF SUSTAINABLE DESIGN STATEMENT Background Papers · 19 Oct 2026 View ↗ PDF ADDENDUM HERITAGE IMPACT ASSESSMENT Heritage Statement · 19 Oct 2026 View ↗ PDF HERITAGE IMPACT ASSESSMENT Heritage Statement · 19 Oct 2026 View ↗

Plans & drawings 22

PDF LOCATION PLAN Location Plan · 19 Oct 2026 View ↗ PDF EXISTING FRONT AND REAR ELEVATIONS Drawing · 19 Oct 2026 View ↗ PDF EXISTING FIRST AND SECOND FLOOR PLANS Drawing · 19 Oct 2026 View ↗ PDF LOCATION PLAN Location Plan · 19 Oct 2026 View ↗ PDF DEMOLITION FIRST AND SECOND FLOOR PLANS Drawing · 19 Oct 2026 View ↗ PDF EXISTING SECTION B Drawing · 19 Oct 2026 View ↗ PDF PROPOSED THIRD FLOOR AND ROOF PLANS Drawing · 19 Oct 2026 View ↗ PDF PROPOSED SECTION AA Drawing · 19 Oct 2026 View ↗ PDF DEMOLITION SECTION A Drawing · 19 Oct 2026 View ↗ PDF PROPOSED LOWER AND GROUND FLOOR PLANS Drawing · 19 Oct 2026 View ↗ PDF PROPOSED SECTION A WITH SIGHTLINES Drawing · 19 Oct 2026 View ↗ PDF EXISTING THIRD FLOOR AND ROOF PLANS Drawing · 19 Oct 2026 View ↗ PDF EXISTING LOWER AND GROUND FLOOR PLANS Drawing · 19 Oct 2026 View ↗ PDF DEMOLITION THIRD FLOOR AND ROOF PLANS Drawing · 19 Oct 2026 View ↗ PDF DEMOLITION LOWER AND GROUND FLOOR PLANS Drawing · 19 Oct 2026 View ↗ PDF EXISTING SECTION A Drawing · 19 Oct 2026 View ↗ PDF PROPOSED FIRST AND SECOND FLOOR PLANS Drawing · 19 Oct 2026 View ↗ PDF PROPOSED FRONT AND REAR ELEVATIONS Drawing · 19 Oct 2026 View ↗ PDF DEMOLITION FRONT AND REAR ELEVATIONS Drawing · 19 Oct 2026 View ↗ PDF DEMOLITION SECTION B Drawing · 19 Oct 2026 View ↗ PDF PROPOSED SECTION B Drawing · 19 Oct 2026 View ↗ PDF NEW APPLICATION VS APPROVED APPLICATION Drawing · 19 Oct 2026 View ↗

Application forms 1

PDF APPLICATION FORM REDACTED Application Form · 19 Oct 2026 View ↗

Other documents 4

PDF RECEIPT OF APPLICATION Other · 22 Oct 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 22 Oct 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 22 Oct 2026 View ↗ PDF COVER LETTER Background Papers · 19 Oct 2026 View ↗

All documents on the council site ↗

Site constraints 9

Grade II listed: 49 and 51, Upper Montagu Street W1
List entry 1357322 · The pin is inside its outline · 40 more listed buildings within 150 m (1 Grade I, 39 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 40 with distances
Historic England ↗
Portman Estate 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.
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 596 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 14 m away: Marylebone Road.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 23 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.

Sales history 2

Last sold for £3,000,000 in September 2023. Terraced house, freehold.

5 September 2023£3,000,000
19 February 2016£3,250,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area218 m² (2,347 sq ft)
Energy ratingC (72 out of 100), could reach B
PropertyMid-terrace house, 8 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in July 2023, the latest held for this property. The building may have changed since. View the certificate

Work with planning data?

Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Other new applications on this street

15 Oct 2026Pending

26 Upper Montagu Street London W1H 1RP

Installation of condenser unit at roof level.

26/06957/FULL
15 Oct 2026Pending

19 Montagu Street London W1H 7EX

(T1) - Cherry(Prunus) -reduce crown by 25%(2.5m max) to suitable growth points -...

26/07053/TCA
1 Oct 2026Pending

Flat 4 8 Upper Montagu Street London W1H 2PB

Replacement of an existing timber single-glazed sash windows with a timber sliml...

26/06369/LBC
21 Jul 2026Approved

Flat 1 8 Upper Montagu Street London W1H 2PB

Replacement of existing windows with timber slimline double-glazed windows, incl...

26/04890/LBC

Nearby new applications

22 Oct 2026Pending

13 Thornton Place London W1H 1FL

Installation of an air conditioning condenser unit to the main roof

26/07219/FULL
22 Oct 2026Pending

82A Chiltern Street London W1U 5AQ

Detailed drawings showing the following alteration to the scheme - the inclusion...

26/07231/ADFULL
21 Oct 2026Pending

Garden Enclosure Portman Square London W1H 6LJ

T8 - CHERRY - - End-weight reduction - Specified extent Reduce crown of NE stem ...

26/07205/TPO
21 Oct 2026Pending

Flat 1 Claremont Court 29 Enford Street London W1H 1DJ

Installation of a conservatory (Retrospective)

26/06218/FULL
19 Oct 2026Pending

7 Homer Street London W1H 4NU

Variation of condition 1 of planning permission dated 1st October 2019 (RN:19/05...

26/06310/FULL
19 Oct 2026Pending

Second Floor 31 Gloucester Place London W1U 6HT

Erection of safety railings to raised patio area accessible from existing french...

26/05530/FULL

Important details

Council
Westminster
Application type
Listed Building Consent Application
Postcode
W1H 1FQ
Received
19 Oct 2026
Validated
23 Oct 2026
Ward
Marylebone
Case officer
Show
Target decision
18 Dec 2026
Applicant
Show
Agent
ADL Planning Pty Ltd

Decision outlook

Day 5 of the 56-day target. Westminster usually decides extensions by day 55.

Day 551 days to 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

No public comments yet.

Last counted 23 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PLP-00010066
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

2025 Approved
Internal alterations including lowering of the floor level to the lower ground floor; Ins…
25/03874/FULL
2025 Approved
Internal alterations including lowering of the floor level to the lower ground floor; Ins…
25/03875/LBC
2024 Approved
Investigative opening up works at all floor levels.
24/06878/LBC
2016 Approved
Internal alterations.
16/04946/LBC
2016 Withdrawn
Erection of stair access enclosure to existing roof terrace
16/05380/FULL
Within ~100m

Nearby activity

2025 Approved
Flat 4 York House 39 Upper Montagu Street London W1H 1FR
Installation of double glazed steel casement windows within the retained existing timber…
25/03577/FULL
2025
129 - 137 Marylebone Road London NW1 5QD
Replacement of existing 8th floor window with a louvre.
25/06969/FULL
2025 Approved
Flat 10 Bryanston Mansions York Street London W1H 1DA
Replacement windows to the front and rear elevations of Flat 10.
25/04421/FULL
2025
Flat 19 York House 39 Upper Montagu Street London W1H 1FR
Installation of double glazed steel casement windows within the retained existing timber…
25/06040/FULL
2024
129 - 137 Marylebone Road London NW1 5QD
Variation of condition 35 of planning permission dated 28th November 2022 (RN:21/06044/FU…
24/08987/FULL
2024
119 Gloucester Place London W1U 6JX
Installation of self-standing kitchenettes to hotel rooms and minor internal alterations…
24/08905/LBC
2024
28 Wyndham Street London W1H 1DD
Internal alterations associated with the general refurbishment. (Linked to 24/07855/FULL)
24/07856/LBC
2024
28 Wyndham Street London W1H 1DD
Minor refurbishment and extension of the property by retaining the existing closet wing…
24/07855/FULL
2024
13 Salisbury Place London W1H 1FJ
Alterations to the front facade and in the courtyard including replacement first floor do…
24/06169/FULL
2024
62 Upper Montagu Street London W1H 1SW
Installation of lighweight plasterboard and glass partition.
24/05263/LBC
2024
52 Upper Montagu Street London W1H 1SJ
Creation of a new external stair in the front lightwell and associated works. (Linked wit…
24/05218/FULL
2024
52 Upper Montagu Street London W1H 1SJ
Creation of a new external stair in the front lightwell and associated works. (Linked wit…
24/05219/LBC
2024
13 Salisbury Place London W1H 1FJ
Display of an internally illuminated projecting sign measuring 70cm x 70cm, and a non-ill…
24/04958/ADV
2024 Approved
Westar House 139 - 151 Marylebone Road London NW1 5QE
Display of an internally illuminated fascia sign measuring 80cm x 360cm; and an internall…
24/03117/ADV
2024 Refused
29 Knox Street London W1H 1FS
Demolition of an existing single storey extension, and the erection of a single storey re…
24/01731/FULL
2024 Refused
29 Knox Street London W1H 1FS
Demolition of an existing single storey extension, and the erection of a single storey re…
24/01732/LBC
2023 Approved
13 Salisbury Place London W1H 1FJ
Use of part of ground and first floors (rear building) as offices, social support facilit…
23/08920/FULL
2023 Refused
Basement And Ground Floor 62 Upper Montagu Street London W1H 1SW
Changes to the front elevation to provide a coffee trading outlet to the street with mino…
23/05258/LBC
2023 Refused
Basement And Ground Floor 62 Upper Montagu Street London W1H 1SW
Changes to the front elevation to provide a coffee trading outlet to the street with mino…
23/05257/FULL
2023
50 York Street London W1H 1GD
Installation of one air condenser unit within the front vault under the pavement located…
23/07818/LBC
2016 Approved
18 Thornton Place London W1H 1FL
Erection of a single storey rear extension at ground floor level.
16/05612/FULL
2016 Approved
Flat 34 York House 39 Upper Montagu Street London W1H 1FR
Replacement of window with glazed door to rear elevation at lower ground floor level.
16/05070/FULL
2016 Approved
North West House 119-127 Marylebone Road London NW1 5PY
Display of 4 halo illuminated fascia signs, an internally illuminated projecting sign, a…
16/01098/ADV
2016 Approved
53 Upper Montagu Street London W1H 1SE
Damp proofing works at basement level.
16/01443/LBC
2016 Approved
45 York Street London W1H 1PW
Display of a non-illuminated advertising hoarding at ground floor level measuring 2.4m x…
16/00142/ADV
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Other 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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.