Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP Data via plota.co.uk
Proposal
Internal alterations at lower ground floor level, including installation of damp proofing and secondary glazing to front windows. Data via plota.co.uk
Application progress
Approved on 30 Oct 2025 · Delegated Decision · Last checked 18 Oct 2026
Documents 16
Decision & officer reports 2
Statements & assessments 2
Plans & drawings 3
Application forms 1
Consultation & comments 3
Other documents 5
Site constraints 8
Show the other 23 with distances
- 31 m25-36, Belgrave Square Sw1Grade I
- 44 m4-34, EATON PLACE SW1 (See details for further address information)Grade II*
- 69 m2-5, BELGRAVE PLACE SW1 (See details for further address information)Grade II
- 73 m1, Belgrave Place Sw1Grade II
- 81 mNumber 11 Including Mews ArchGrade II
- 86 m36-54, Eaton Place Sw1Grade II
- 95 mSpanish EmbassyGrade I
- 96 m103-118, Eaton Square Sw1Grade II*
- 103 mK6 Telephone Kiosk Outside Flank Elevation of Number 103 Eaton SquareGrade II
- 103 m3-11, Upper Belgrave Street Sw1Grade II*
- 107 m1 AND 2, UPPER BELGRAVE STREET SW1 (See details for further address information)Grade II
- 116 m37-43, Eaton Place Sw1Grade II
- 118 m83-102, Eaton Square Sw1Grade II*
- 122 mRailings and Gatepiers Gates to Number 24Grade II*
- 126 mSeaford House and Gate PiersGrade II*
- 130 m3, Wilton Mews Sw1Grade II
- 138 m13-23, Belgrave Square Sw1Grade I
- 140 m5 Groom Place and stable yardGrade II
- 140 mLowndes HouseGrade II
- 146 m12 and 13, Upper Belgrave Street Sw1Grade II
- 147 mMews Arch to Lowndes CloseGrade II
- 147 m18-32, Chester Street Sw1Grade II
- 148 m15-17, Chester 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.
Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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21 Eaton Place London SW1X 8BP
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Important details
- Council
- Westminster
- Application type
- Listed Building Consent Application
- Postcode
- SW1X 8BP
- Received
- 15 Sept 2025
- Validated
- 15 Sept 2025
- Ward
- Knightsbridge & Belgravia
- Case officer
- Show
- Target decision
- 10 Nov 2025
- Decision
- Application Permitted
- Decision date
- 30 Oct 2025
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Castle Planning
How this decision compares
Decided in 45 days from validation, 12 days faster than Westminster's median of 57 for listed building works. Approved, as 90% of listed building works here are.
Plota live figures for listed building works decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
Last counted 18 Oct 2026
Consultation & key dates
- Alt. reference
- PP-14332913
- Planning Portal ref
- PP-14332913
- Comments by
- 29 Oct 2025
- Site or press notice
- 8 Oct 2025
- Env. assessment
- No
Historical activity at this location
27 previous applications on record - archival context, not part of the live application.
Previous applications at this address
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.
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Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP
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