4 Sussex Square London W2 2SJ Data via plota.co.uk

25/05362/CLOPUD - Certificate of Lawfulness (proposed) Refused

Proposal

Replacement glazing and extending the internal footprint to the existing building line at the rear of the house by extending under the existing overhang created by the terrace above. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
31 Jul 2025
✗
Refused
25 Sept 2025
Appeal
Not lodged

Refused on 25 Sept 2025 · Delegated Decision · Last checked 31 Oct 2026

Documents 7

Decision & officer reports 2

PDF REFUSAL-LAWFUL USE OF DEVELOPMENT-PROP. Decision Notice · 25 Sept 2025 View ↗ PDF DELEGATED REPORT Report · 25 Sept 2025 View ↗

Plans & drawings 2

PDF LOCATION PLAN Location Plan · 31 Jul 2025 View ↗ PDF EXISTING AND PROPOSED DRAWINGS Drawing · 31 Jul 2025 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 31 Jul 2025 View ↗

Other documents 2

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 11 Aug 2025 View ↗ PDF RECEIPT OF APPLICATION Other · 7 Aug 2025 View ↗

All documents on the council site ↗

Site constraints 10

Bayswater 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 Named permitted development rights are withdrawn here.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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
24 listed buildings within 150 m
Nearest: Mews Arch to Sussex Mews East Sussex Cottage, Grade II, 36 m away · 24 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 24 with distances
Historic England ↗
Also on the record
Registered park or garden 166 m away: Hyde Park; National infrastructure project 579 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; Tree preservation order 22 m away: W19_A1.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

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.

Sales history 2

Last sold for £2,850,000 in September 2025. Semi-detached house, freehold.

12 September 2025£2,850,000
7 July 1997£450,000Leasehold

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

Building

Floor area251 m² (2,702 sq ft)
Energy ratingD (61 out of 100), could reach B
PropertyMid-terrace house, 6 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in July 2025, 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
Certificate of Lawfulness (proposed)
Postcode
W2 2SJ
Received
31 Jul 2025
Validated
31 Jul 2025
Ward
Hyde Park
Case officer
Show
Target decision
25 Sept 2025
Decision
Application Refused
Decision date
25 Sept 2025
Decision level
Delegated Decision
Applicant
Show
Agent
Risner Design

How this decision compares

Decided in 56 days from validation, about the council's usual 53 days. Refused, as 20% of lawful development certificates here are.

63%decided within 8 weeks
80%approved
211decided in the last year

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

Public comments

No public comments yet.

Last counted 31 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14219737
Planning Portal ref
PP-14219737
Env. assessment
No

Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025
Replacement glazing and extending the internal footprint to the existing building line at…
25/07384/CLOPUD
Within ~100m

Nearby activity

2025
25 Hyde Park Gardens London W2 2LZ
Internal and external refurbishment to provide new and replacement roof lights, the repla…
25/07848/LBC
2025
25 Hyde Park Gardens London W2 2LZ
Internal and external refurbishment to provide new and replacement roof lights, the repla…
25/07847/FULL
2025
8 Sussex Square London W2 2SJ
Garage conversion, including replacement of the garage door with french doors; rear lower…
25/07363/FULL
2025 Approved
Open Space In The Centre Of Sussex Square London W2 2SJ
Tree works in accordance with the attached schedule.
25/02368/TPO
2025
Sussex Lodge Sussex Place London W2 2SQ
Replacement of rear basement car-park access shutter; Installation of ventilation grilles…
25/02261/FULL
2025
18 Sussex Place London W2 2TP
Installation of new ceramic floor tiling to the front lightwell facing Clifton Place. (Li…
25/02139/LBC
2025
18 Sussex Place London W2 2TP
Installation of new ceramic floor tiling to the front lightwell facing Clifton Place. (Li…
25/02138/FULL
2024
32 Sussex Square London W2 2SP
Amalgamation of two flats to create one 5-bedroom flat (32 and 53 Sussex Square)
24/07797/FULL
2024 Approved
Hyde Park Gardens West Hyde Park Gardens London W2 2NB
T1 1 x lime: crown reduce to previous, most recent reduction points, retaining shortened…
24/00867/TPO
2024 Approved
Open Space In The Centre Of Sussex Square London W2 2SJ
T76 Cherry: reduce by 2m over road to suitable growth pointsT74 Holly - fellT95 Holly - f…
24/00425/TPO
2024 Approved
24 Stanhope Terrace London W2 2UA
Internal alterations and refurbishment to lower ground floor flat.
24/00451/LBC
2024
22 Hyde Park Gardens London W2 2LY
Redecoration works to the external walls and boundaries with associated render and brickw…
24/00319/LBC
2023 Approved
Flat 5 18 Stanhope Terrace London W2 2TU
Internal alterations including the removal and addition of partitions at second floor lev…
23/06776/LBC
2023
28 Sussex Place London W2 2TH
Installation of a canvas awning to the front elevation.
23/07766/FULL
2023 Approved
Flat 2 18 Sussex Place London W2 2TP
Internal alterations to second floor.
23/04479/LBC
2023 Approved
55 Sussex Square London W2 2SR
Installation of double glazed windows to Flat 55 at 1st floor level.
23/01696/FULL
2023 Approved
8 Gloucester Square London W2 2TJ
Construction of a basement light well with metal grille, new double door within new light…
23/01746/FULL
2022 Approved
19 Hyde Park Gardens London W2 2LY
Installation of seven electrical charging points and associated works in connection with…
22/08123/FULL
2022
18 Sussex Square London W2 2SL
Replacement of the existing metal casement windows throughout the property with new doubl…
22/02537/FULL
2022 Approved
Open Space In The Centre Of Sussex Square London W2 2SJ
1 x tree privet (73): fell1 x holly (74): crown lift to 3.5m all round1 x holly (75): cro…
22/00870/TPO
2017 Approved
23 - 28 And 29 - 35 Stanhope Terrace London W2 2UA
Replacement of the boundary railings and gates to Stanhope Terrace with traditional raili…
17/04028/FULL
2017 Approved
Flat 4 18 Sussex Place London W2 2TP
Internal alterations at fourth floor.
17/07294/LBC
2017 Approved
Sussex Lodge Sussex Place London W2 2SQ
Demolition of existing boiler room facing Sussex Mews East and erection of two storey bui…
17/00622/FULL
2016 Withdrawn
8 Gloucester Square London W2 2TJ
Continued use as a single dwelling house as a residence for a member of the diplomatic mi…
16/08564/CLOPUD
2017 Approved
10 - 72 Sussex Square London W2 2SJ
Installation of louvred grilles to ground front elevation in connection with installation…
17/02769/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

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.