Flat 1 109 Eaton Square London SW1W 9AA Data via plota.co.uk

26/05891/LBC - Listed Building Consent Application Pending
Extensions & alterationsListed buildingsUtility infrastructure

Proposal

External and internal works, including replacement of existing vault doors with acoustic louvred doors associated with plant, replacement of existing security grilles to LGF front windows, demolition and rebuilding of existing closet wing infill extension at GF rear, replacement of external doors and windows and blocking up window opening to side of closet wing at GF level, opening up works for the purposes of investigation, demolition of and installation of partitions and suspended ceilings, replacement of internal doors, replacement of existing staircase, reinstatement and replacement of internal architectural features, installation of lighting, installation of new service routes associated with the plant and MEP and structural works. (Linked with 26/05890/FULL) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
27 Aug 2026
✓
Validated
24 Sept 2026
Decision
Expected by 19 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 14 Nov 2026 and 23 Nov 2026, from Westminster's recent extensions.

Comments are open until 28 Oct 2026

Comment on this application ↗

Documents 1

Other documents 1

PDF RECEIPT OF APPLICATION Other · 2 Sept 2026 View ↗

All documents on the council site ↗

Associated applications 2

Site constraints 10

Grade II* listed: 103-118, Eaton Square Sw1
List entry 1066851 · The pin is inside its outline · 18 more listed buildings within 150 m (1 Grade I, 7 Grade II*, 10 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 18 with distances
Historic England ↗
Belgravia 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 Named permitted development rights are withdrawn here.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 ↗
Registered park or garden 34 m away: The Grosvenor Estate: Eaton Square
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
National infrastructure project 703 m away: Thames Tideway Tunnel
The site is 703 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, 17 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Also on the record
Heritage at risk 28 m away: 112, Eaton Square; 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.

Building

Floor area234 m² (2,519 sq ft)
Energy ratingD (59 out of 100), could reach C
PropertyMid-terrace flat, 6 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in January 2024, 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
Listed Building Consent Application
Postcode
SW1W 9AA
Received
27 Aug 2026
Validated
24 Sept 2026
Ward
Knightsbridge & Belgravia
Case officer
Show
Target decision
19 Nov 2026
Applicant
Show
Agent
TFA Design Ltd

Decision outlook

Day 35 of the 56-day target. Westminster usually decides extensions by day 55.

Day 3521 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 25 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15170864
Planning Portal ref
PP-15170864
Comments by
28 Oct 2026
Site or press notice
7 Oct 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
107 Eaton Square London SW1W 9AA
Internal changes to some door openings, minor setting out, addition of insulation and min…
25/08094/LBC
2025 Approved
113 Eaton Square London SW1W 9AA
Internal and external alterations including infill of the rear lightwell, introduction of…
25/06284/LBC
2025 Approved
113 Eaton Square London SW1W 9AA
External alterations including infill of the rear lightwell at lower ground floor level…
25/06283/FULL
2025
13 Upper Belgrave Street London SW1X 8BA
Installation of fan coil units within concealed joinery and an external condenser on the…
25/08079/LBC
2025
13 Upper Belgrave Street London SW1X 8BA
Installation of fan coil units within concealed joinery and an external condenser on the…
25/08078/FULL
2025
116 Eaton Square London SW1W 9AA
Replacement lightwell staircase and balustrade, replacement floor finishes and surface wa…
25/07517/LBC
2025
116 Eaton Square London SW1W 9AA
Replacement lightwell staircase and balustrade, replacement floor finishes and surface wa…
25/07516/FULL
2025
Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP
Alterations to lower ground floor damp ingress, including stripping back to brick work; i…
25/06595/LBC
2025
117 Eccleston Mews London SW1X 8AQ
External alterations to the front and rear elevations including replacement windows, gara…
25/05762/FULL
2025 Approved
9 Eaton Place London SW1X 8BN
Replacement of existing windows at front and rear fourth floor level with timber frame sa…
25/04418/LBC
2025 Approved
13 Upper Belgrave Street London SW1X 8BA
Installation of a condenser on the roof of the property and replacement glazing in existi…
25/02884/FULL
2025 Approved
13 Upper Belgrave Street London SW1X 8BA
Internal layout alterations to the master suite, and the installation of a chimney breast…
25/03351/LBC
2025
13 Upper Belgrave Street London SW1X 8BA
Installation of a condenser on the roof of the property and replacement glazing in existi…
25/02885/LBC
2025
9 Eaton Place London SW1X 8BN
Amendments to the approved layout, internal alterations on all floor levels, and replacem…
25/02131/LBC
2025
9 Eaton Place London SW1X 8BN
Variation of condition 1 of planning permission dated 13 December 2018 (RN: 18/08368/FULL…
25/02130/FULL
2024
Flat C 11 Eaton Place London SW1X 8BN
Extension of staircase internally and new box sliding rooflight installed for roof access…
24/08616/LBC
2024
Flat C 11 Eaton Place London SW1X 8BN
Extension of staircase internally and new box sliding rooflight installed for roof access…
24/08615/FULL
2024
13 Upper Belgrave Street London SW1X 8BA
Internal alterations to the ground floor flat to make it more suitable for modern living.
24/06274/LBC
2024
9 Eaton Place London SW1X 8BN
Erection of a mansard roof extension at fifth floor level. (Linked with 24/05693/LBC)
24/05692/FULL
2024
9 Eaton Place London SW1X 8BN
Erection of a mansard roof extension at fifth floor level. (Linked with 24/05692/FULL)
24/05693/LBC
2020 Approved
Third Floor And Fourth Floor Flat 24 Eaton Place London SW1X 8AE
Installation of eight replacement air-conditioning units with grey trellis screening at m…
20/08357/LBC
2021 Approved
Third Floor And Fourth Floor Flat 24 Eaton Place London SW1X 8AE
Installation of eight replacement air-conditioning units with grey trellis screening at m…
21/01915/FULL
2021 Approved
112 Eaton Square London SW1W 9AE
Variation of condition 1 of listed building consent dated 16 April 2018 (RN: 18/01437/LBC…
21/02060/LBC
2021 Approved
Flat 2 6 Eaton Place London SW1X 8AD
Removal of a small section of wall in the entrance hall
21/02306/LBC
2020 Approved
6 Eaton Place London SW1X 8AD
Replacement of lift. Addition of part of the communal area to 1st, 2nd & 3rd floor flats…
20/06298/LBC
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

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.