Chatham House 10 St James's Square London SW1Y 4LE Data via plota.co.uk
26/03269/LBC - Listed Building Consent Application
Approved
Proposal
Removal of internal partition wall in the office spaces at second floor level. Data via plota.co.uk
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View original council record ↗
Application progress
✓
Received
18 May 2026
✓
Approved
14 Jul 2026
Approved on 14 Jul 2026 · Delegated Decision · Last checked 29 Jul 2026
Documents 12
Decision & officer reports 2
Statements & assessments 1
Application forms 1
Consultation & comments 2
Other documents 6
PDF
ACK-GENERAL LETTER (G/P/C)
Background Papers · 8 Jun 2026
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PDF
SITE NOTICE 21 OR 28 DAYS IF T&C APPL.
Background Papers · 8 Jun 2026
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PDF
RECEIPT OF APPLICATION
Other · 22 May 2026
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PDF
CH2-PDP-XX-XX-DR-A-00001-P1
Background Papers · 18 May 2026
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PDF
CH2-PDP-XX-02-DR-A-01001-P1
Background Papers · 18 May 2026
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PDF
CH2-PDP-XX-02-DR-A-03001-P1
Background Papers · 18 May 2026
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Important details
- Council
- Westminster
- Application type
- Listed Building Consent Application
- Postcode
- SW1Y 4LE
- Received
- 18 May 2026
- Validated
- 18 May 2026
- Ward
- St James's
- Case officer
- Show
- Target decision
- 13 Jul 2026
- Decision
- Application Permitted
- Decision date
- 14 Jul 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Pegasus Group
Consultation & key dates
- Alt. reference
- PP-14926846
- Press notice
- 17 Jun 2026
- Env. assessment
- No
Historical activity at this location
36 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2025
Approved
Remedial structural works to the lightwell and basement vault.
2021
Approved
Removal and replacement of rainwater pipes and gutters. Removal and like for like replace…
2021
Approved
Removal and replacement of rainwater pipes and gutters. Removal and like for like replace…
2019
Approved
Internal refurbishment works including lighting installation throughout both buildings ba…
2019
Approved
Replacement of two existing condenser units and installation of a new condenser unit at f…
2019
Approved
Replacement of two existing condenser units and installation of a new condenser unit at f…
2019
Withdrawn
Plasterwork repairs within the main staircase
2019
Withdrawn
Internal refurbishment works at basement, ground and first floor levels.
2016
Approved
Variation of Condition 1 of planning permission dated 25 July 2016 (RN: 16/04844/FULL) fo…
2016
Approved
Variation of Condition 1 of planning permission dated 1 October 2016 (RN: 15/05933/FULL)…
2016
Withdrawn
Details pursuant to Conditions 1, 2, 3, 4, 5, 6 and 7 (not inc. Part a) of planning permi…
Within ~100m
Nearby activity
2025
Approved
12 St James's Square London SW1Y 4LB
Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Bu…
2025
14 St James's Square London SW1Y 4LG
Installation of a new lift shaft within the existing lightwell providing access to all le…
2025
14 St James's Square London SW1Y 4LG
Installation of a new lift shaft within existing lightwell providing access to all levels…
2024
14 St James's Square London SW1Y 4LG
External alterations including replacement of existing plant equipment and rooflights; in…
2024
14 St James's Square London SW1Y 4LG
Internal refurbishment and alterations at ground and basement level; external alterations…
2024
Approved
95 Jermyn Street London SW1Y 6JE
Display of non-illuminated mesh and vinyl advertisements on hoardings measuring 2.44m x 0…
2024
103-105 Jermyn Street London SW1Y 6EE
RECONSULTATION: Amendments to proposed roof terrace and balconies, facades and Daylight &…
2023
Approved
11 - 12 St James's Square London SW1Y 4LB
Replacement and installation of new plant at roof and basement level and three plant scre…
2024
Approved
95 Jermyn Street London SW1Y 6JE
Replacement of one window to front elevation at third floor level.
2023
Approved
95 Jermyn Street London SW1Y 6JE
Works of repair and restoration to the external elevations and roof including brickwork c…
2022
Approved
7 St James's Square London SW1Y 4JU
Internal at all levels to reconfigure layouts and external alterations to the eastern lig…
2023
Approved
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Retention of replacement staircase and security sensor lighting to rear escape stairwell.
2023
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Office enhancements, including internal alterations to main entrance, reception and atriu…
2023
11 - 12 St James's Square London SW1Y 4LB
Refurbishment and alterations to main entrance, reception and atrium areas, improvements…
2023
Approved
11 - 12 St James's Square London SW1Y 4LB
Various internal refurbishment works to existing rear office extension area from ground f…
2023
Withdrawn
Ames House 6 Duke Of York Street London SW1Y 6LA
The construction of a fully glazed winter garden over the existing outdoor terrace area.
2023
11 - 12 St James's Square London SW1Y 4LB
Replacement of roof and basement level plant equipment and enclosure at roof level; lands…
2023
Approved
12 St James's Square London SW1Y 4LB
Installation of brass plaque located on pilaster adjacent to main entrance.
2022
Approved
12 St James's Square London SW1Y 4LB
Display of a non-illuminated bronze plaque measuring 25cm x 35cm
2022
5 St James's Square London SW1Y 4JU
Alterations to the existing secondary staircase to allow for strengthening works to the b…
2018
Approved
Open Space Centre Of St James's Square London SW1Y 4LD
T1 1 x cherry: fellT2 1 x Sorbus: crown clean and lift over road up to 3mT3 and T4 2 x ch…
2018
Approved
Open Space Centre Of St James's Square London SW1Y 4LD
T5 1 x hawthorn: fellT6 1 x Malus: reduce canopy by 20-30% pruning back to suitable growt…
2018
Approved
89 Jermyn Street London SW1Y 6JH
Display for a temporary period of six months of a non-illuminated estate agent board loca…
2018
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Internal alterations to existing rear extension, in connection with a new internal fit ou…
2018
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Variation of condition 1 of listed building consent dated 08 September 2014 (RN: 14/01446…
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Other 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 performance
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
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Chatham House 10 St James's Square London SW1Y 4LE
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