Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP Data via plota.co.uk
Proposal
Replacement door at lower ground floor level. Data via plota.co.uk
Application progress
Approved on 10 Sept 2026 · Delegated Decision · Last checked 11 Sept 2026
Documents 15
Decision & officer reports 2
Statements & assessments 2
Plans & drawings 3
Application forms 1
Consultation & comments 3
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.
Other new applications on this street
21 Eaton Place London SW1X 8BP
Remediation works to the roof and internal walls and joists to address dry rot.
52 Eaton Place London SW1X 8AL
Replacement of the approved second-floor rear sash window with painted timber Fr...
43 Eaton Place London SW1X 8BX
Details of evidence documenting that the existing glass screen at third-floor le...
Flat 5 94 Eaton Place London SW1X 8LW
Installation of an external air conditioning condenser unit at main roof level, ...
Nearby new applications
13 Upper Belgrave Street London SW1X 8BA
Replacement water tank room at roof level.
Victoria Underground Station Terminus Place London SW1V 1JT
Installation of new fibre optic cable and associated equipment within the baseme...
64 Sloane Street, London, SW1X 9SH
Retrospective listed building consent to Internal alterations to all floors, inc...
204-206 Sloane Street, London, SW1X 9QX
Installation of removable/ demountable security bollards to pavement frontage of...
15 Beeston Place London SW1W 0JW
T1 - Large Sycamore Minor pruning of the crown overhanging Eaton Lane, comprisin...
Listed Buildings Surrounding Eaton Square London
Consultation on a draft Local Listed Building Consent Order (LLBCO) for energy e...
Important details
- Council
- Westminster
- Application type
- Listed Building Consent Application
- Postcode
- SW1X 8BP
- Received
- 31 Jul 2026
- Validated
- 31 Jul 2026
- Ward
- Knightsbridge & Belgravia
- Case officer
- Show
- Target decision
- 25 Sept 2026
- Decision
- Application Permitted
- Decision date
- 10 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Castle Planning
How this decision compares
Decided in 41 days from validation, 14 days faster than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.
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 11 Sept 2026
Consultation & key dates
- Alt. reference
- PP-15127616
- Planning Portal ref
- PP-15127616
- Comments by
- 9 Sept 2026
- Site or press notice
- 10 Aug 2026
- Env. assessment
- No
Historical activity at this location
28 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.
Track this application
Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP
Tracking this application
Not there after a minute? Check your junk folder. It's from alerts@plota.co.uk.
Go to your dashboard →Sign in to view contact details
Applicant and case-officer names are hidden from public view for privacy. Create a free Plota account - or sign back in - and we'll show them, plus you get a dashboard for alerts and tracked applications.
