117 Eccleston Mews London SW1X 8AQ Data via plota.co.uk
Proposal
External alterations to front and rear elevations including replacement windows, garage doors and window planter boxes, new wall lights, dome security cameras and alarm box; relocated boiler flue;; replacement roof covering and rooflight; and conversion of two garages into one. Data via plota.co.uk
Application progress
Approved on 19 Feb 2026 · Delegated Decision · Last checked 18 Oct 2026
Documents 32
Decision & officer reports 2
Statements & assessments 2
Plans & drawings 18
Application forms 1
Consultation & comments 1
Other documents 8
Site constraints 10
Show all 25 with distances
- 7 m103-118, Eaton Square Sw1Grade II*
- 16 m4-34, EATON PLACE SW1 (See details for further address information)Grade II*
- 37 m3-11, Upper Belgrave Street Sw1Grade II*
- 40 m12 and 13, Upper Belgrave Street Sw1Grade II
- 65 mNos. 1-31, EATON PLACE; Nos. 17, 18 AND 19 BELGRAVE PLACE AND ADJOINING MEWS ARCHGrade II*
- 67 mChurch of St PeterGrade II*
- 68 m16a, Wilton Street Sw1Grade II
- 81 m4-15, Wilton Street Sw1Grade II
- 83 m16-23, Wilton Street Sw1Grade II
- 101 m3, Wilton Mews Sw1Grade II
- 108 mNumber 11 Including Mews ArchGrade II
- 108 m1-7, Eaton Square Sw1Grade II
- 109 m18-32, Chester Street Sw1Grade II
- 115 m1 AND 2, UPPER BELGRAVE STREET SW1 (See details for further address information)Grade II
- 118 m6, Hobart Place Sw1Grade II
- 119 mK6 Telephone Kiosk Outside Flank Elevation of Number 103 Eaton SquareGrade II
- 121 m25-36, Belgrave Square Sw1Grade I
- 129 mK6 Telephone Kiosk by Number 7Grade II
- 129 m1-4, Hobart Place Sw1Grade II
- 135 m15-17, Chester Street Sw1Grade II
- 141 m83-102, Eaton Square Sw1Grade II*
- 142 m36-54, Eaton Place Sw1Grade II
- 145 m8-14, Chester Street Sw1Grade II
- 146 m8 to 23 Eaton Square including 57 Lower Belgrave StreetGrade II*
- 148 m1-3, Wilton Street Sw1Grade II
Checked on 2 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 £1,200,000 in April 2025. 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 May 2021, the latest held for this property. The building may have changed since. View the certificate
Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- SW1X 8AQ
- Received
- 15 Aug 2025
- Validated
- 19 Sept 2025
- Ward
- Knightsbridge & Belgravia
- Case officer
- Show
- Target decision
- 20 Feb 2026
- Decision
- Application Permitted
- Decision date
- 19 Feb 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- RBD Architecture & Interiors
How this decision compares
Decided in 153 days from validation, 77 days slower than Westminster's median of 76 for full applications. Approved, as 86% of full applications here are.
Plota live figures for full applications decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
8 neighbours consulted · Last counted 18 Oct 2026
Consultation & key dates
- Alt. reference
- PP-14230339
- Planning Portal ref
- PP-14230339
- Comments by
- 29 Oct 2025
- Site or press notice
- 25 Sept 2025
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
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.
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.
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117 Eccleston Mews London SW1X 8AQ
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