Flat 3, 55 Onslow Square, London, SW7 3LR Data via plota.co.uk
Proposal
Details required by Condition 3, Part B, Limb L (Submission of details) of Listed Building Consent (Variation of conditions 2 (approved drawings) and 3 (submission of details) of listed building consent to allow layout changes to lower ground floor rooms and other internal works; and removal of condition 7 (demolition - hand tools only)) Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. A decision is expected by 22 Dec 2026.
Associated applications 9
- ConditionsDetails required by Condition 3, Part B, Limb L (Submission of details) (Variation…This applicationCON/26/05795
Show 7 more · 5 approved, 2 pending
- VariationVariation of conditions 2 (approved drawings) and 3 (submission of details) to allow layout…LB/26/02022
Conditions details submitted for 3
Site constraints 10
Show the other 13 with distances
- 69 m13-23, Sumner Place Sw7Grade II
- 76 m9-25, Onslow SquareGrade II
- 80 mEntrance Arch From Sumner PlaceGrade II
- 96 m77-109, Onslow Square Sw7Grade II
- 102 m3-12, SUMNER PLACE SW7 (See details for further address information)Grade II
- 102 m44-54, Onslow Square Sw7Grade II
- 109 m2-42, Onslow Square Sw7Grade II
- 116 mSouth Kensington Underground StationGrade II
- 124 mEntrance Arch to Park House Between Numbers 7 and 11Grade II
- 126 m1-7, Onslow Square Sw7Grade II
- 130 mChurch of St PaulGrade II
- 141 m1-5, SYDNEY PLACE SW7 (See details for further address information)Grade II
- 141 mAvenue StudiosGrade II
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 1
Last sold for £3,725,000 in July 2022. Flat or maisonette, leasehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in March 2018, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate
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Important details
- Council
- Kensington and Chelsea
- Application type
- Discharge of Conditions
- Postcode
- SW7 3LR
- Received
- 27 Oct 2026
- Validated
- 27 Oct 2026
- Ward
- Courtfield
- Case officer
- Show
- Target decision
- 22 Dec 2026
- Applicant
- Show
- Leaseholder
- Show
Consultation & key dates
- Comments by
- 20 Nov 2026
Historical activity at this location
26 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Kensington and Chelsea ranks #174 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
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.
Leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.
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Flat 3, 55 Onslow Square, London, SW7 3LR
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Leaseholders, on paid plans
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Council archive
Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR
Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works.
- Received
- 23 Apr 2025
- Decided
- 31 Jul 2025
- Outcome
- Approved
- Type
- Heritage
Comments are open until 20 Nov 2026