Sanctuary Buildings 20 Great Smith Street London SW1P 3BT Data via plota.co.uk
26/02778/FULL - Full Planning Permission Application
Approved
Proposal
Installation of automatic opening vents to window openings at levels 00, 01, 02 and 03 on east and west elevations. Data via plota.co.uk
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View original council record ↗Last checked
Application progress
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Received
27 Apr 2026
✓
Approved
9 Jul 2026
Approved on 9 Jul 2026 · Delegated Decision · Last checked 4 Aug 2026
Documents 47
Decision & officer reports 2
Statements & assessments 6
PDF
DESIGN & ACCESS STATEMENT
Design and Access Statement · 27 Apr 2026
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HERITAGE STATEMENT
Heritage Statement · 27 Apr 2026
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PLANNING STATEMENT
Planning Statement · 27 Apr 2026
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STATEMENT OF NEED
Background Papers · 27 Apr 2026
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EXISTING SURVEY SECTIONS
Drawing · 27 Apr 2026
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EXISTING SURVEY SECTIONS
Drawing · 27 Apr 2026
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Plans & drawings 29
PDF
EAST ELEVATION AND WEST ELEVATION AOW COMPARISON DRAWING SET
Drawing · 27 Apr 2026
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EAST ELEVATION DEMOLITION
Drawing · 27 Apr 2026
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WEST ELEVATION DEMOLITION
Drawing · 27 Apr 2026
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EAST ELEVATION AS EXISTING
Drawing · 27 Apr 2026
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WEST ELEVATION AS EXISTING
Drawing · 27 Apr 2026
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EAST ELEVATION AS PROPOSED
Drawing · 27 Apr 2026
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WEST ELEVATION AS PROPOSED
Drawing · 27 Apr 2026
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SITE PLAN
Background Papers · 27 Apr 2026
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EXISTING SECTION P02
Drawing · 27 Apr 2026
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EXISTING SECTION P02
Drawing · 27 Apr 2026
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PROPOSED SECTION
Drawing · 27 Apr 2026
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PROPOSED SECTION
Drawing · 27 Apr 2026
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WINDOW TYPE 1
Drawing · 27 Apr 2026
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WINDOW TYPE 2
Drawing · 27 Apr 2026
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WINDOW TYPE 4
Drawing · 27 Apr 2026
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WINDOW TYPE 3
Drawing · 27 Apr 2026
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WINDOW TYPE 5
Drawing · 27 Apr 2026
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DEMOLITION PLAN LEVEL 00
Drawing · 27 Apr 2026
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EXISTING PLAN LEVEL 00
Drawing · 27 Apr 2026
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AS PROPOSED LEVEL 00
Drawing · 27 Apr 2026
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DEMOLITION PLAN LEVEL 01
Drawing · 27 Apr 2026
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EXISTING PLAN LEVEL 01
Drawing · 27 Apr 2026
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AS PROPOSED LEVEL 01
Drawing · 27 Apr 2026
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DEMOLITION PLAN LEVEL 02
Drawing · 27 Apr 2026
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EXISTING PLAN LEVEL 02
Drawing · 27 Apr 2026
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AS PROPOSED LEVEL 02
Drawing · 27 Apr 2026
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DEMOLITION PLAN LEVEL 03
Drawing · 27 Apr 2026
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EXISTING PLAN LEVEL 03
Drawing · 27 Apr 2026
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AS PROPOSED LEVEL 03
Drawing · 27 Apr 2026
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Application forms 1
Consultation & comments 1
Other documents 8
PDF
ACK-GENERAL LETTER (G/P/C)
Background Papers · 9 Jun 2026
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CNSLT-LA SOCIETY
Background Papers · 9 Jun 2026
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CNSLT-LA SOCIETY
Background Papers · 9 Jun 2026
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SITE NOTICE 21 OR 28 DAYS IF T&C APPL.
Background Papers · 9 Jun 2026
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RECEIPT OF APPLICATION
Other · 5 May 2026
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1ST INVALID LETTER
Background Papers · 5 May 2026
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ATTACHMENT SUMMARY
Background Papers · 27 Apr 2026
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COVERING LETTER
Background Papers · 27 Apr 2026
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Site constraints 10
Grade II listed: Park House
List entry 1213768 · 25 m from the pin · 21 more listed buildings within 150 m (3 Grade I, 18 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 21 with distances
- 27 mDean's YardGrade II
- 33 mOrchard HouseGrade II
- 36 m3 Lamp Standards to South End Outside Number 5a and Church House,dean's YardGrade II
- 57 mWestminster Public LibraryGrade II
- 67 mChoir School and Deans YardGrade II
- 70 mChurch HouseGrade II
- 92 m36-40, Great Smith Street Sw1Grade II
- 99 mLamp post outside 4 Tufton StreetGrade II
- 107 mDean's YardGrade II
- 111 mChurch of St MatthewGrade II
- 112 mNo. 22 Great College Street (including St Edward's Chapel, Tufton Street)Grade II
- 116 mDean's YardGrade I
- 121 mDean's YardGrade I
- 122 mFaith HouseGrade II
- 124 mDeans YardGrade II
- 124 mLamp post outside 22 Great College StreetGrade II
- 126 mSt Matthew's Clergy HouseGrade II
- 134 m10 Lamp Standards Round Central Green of Dean's YardGrade II
- 134 mLittle Deans YardGrade II
- 140 m19,19a and 20, Broad Sanctuary Sw1Grade I
- 144 mThe SanctuaryGrade II
Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Westminster Abbey And Parliament Square conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Article 4 direction
Article 4 Basement Development Permitted Rights Removed. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Archaeological priority area: City of Westminster APA 2.8
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Westminster AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
World heritage site 18 m away: Palace of Westminster, Westminster Abbey and St. Margaret's Church
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
Also on the record
Scheduled monument 199 m away: The Chapter House and Pyx Chamber in the abbey cloisters, Westminster Abbey; Inside the City of Westminster built-up area.
Not affected
Not green belt
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- SW1P 3BT
- Received
- 27 Apr 2026
- Validated
- 27 Apr 2026
- Ward
- St James's
- Case officer
- Show
- Target decision
- 22 Jun 2026
- Decision
- Application Permitted
- Decision date
- 9 Jul 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Smith Jenkins Ltd
How this decision compares
Decided in 73 days from validation, 15 days slower than Westminster's median of 58 for full applications. Approved, as 86% of full applications here are.
This one73d
Council58d
UK56d
48%decided within 8 weeks
86%approved
612decided in the last year
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.
106 neighbours consulted · Last counted 4 Aug 2026
Consultation & key dates
- Alt. reference
- PP-14882881
- Site or press notice
- 17 Jun 2026
- Env. assessment
- No
Historical activity at this location
35 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2025
Temporary modification and subsequent reinstatement of a single section of curtain wallin…
2025
Temporary modification and subsequent reinstatement of a single section of curtain wallin…
2025
Installation of external pipework between the first and second floors on the south elevat…
2025
Installation of external pipework between the first and second floors on the south elevat…
2025
Replacement of raised modern floors at a higher level and internal glazed fall protection…
2024
Widening of a fire exit and associated alteration to the surrounding curtain walling.
2020
Approved
Internal alterations to refurbish lower ground, first, second, third and fourth floors to…
2019
Approved
Refurbishment of 5th floor office accommodation to Park House section of Sanctuary Buildi…
2017
Approved
Demolition of roof plant room and roof light structure; construction of office (B1) floor…
2017
Approved
Demolition of roof plant room and roof light structure; construction of office (B1) floor…
Within ~100m
Nearby activity
2025
Approved
Edward Alsop Court 18 Great Peter Street London SW1P 2BT
Hard landscaping works to courtyard area to allow for additional car parking space.
2025
Church House Conference Centre Dean's Yard London SW1P 3NZ
Installation of air handling unit at roof level, and associated enabling works and replac…
2025
Church House Conference Centre Dean's Yard London SW1P 3NZ
Installation of air handling unit at roof level, and associated enabling works and replac…
2025
Church House Great Smith Street London SW1P 3BL
Display of one relocated non illuminated projecting sign measuring 1.2m x 0.9m. (Linked w…
2025
Church House Great Smith Street London SW1P 3BL
Relocation of existing hanging sign from above old North Door entrance to above new North…
2024
Church House Great Smith Street London SW1P 3BL
Internal works comprising of the refurbishment of a teapoint in the area of the historic…
2024
Approved
Edward Alsop Court 18 Great Peter Street London SW1P 2BT
T1 Silver birch: fell
2024
Withdrawn
1 St Ann's Street London SW1P 2DE
Car park at front T1 - Silver Birch x 1 (Betula pendula / alba) - This tree has outgrown…
2023
40 Great Smith Street London SW1P 3BU
Excavation of single storey basement associated internal alterations to main building; de…
2023
40 Great Smith Street London SW1P 3BU
Excavation of single storey basement associated internal alterations to main building; de…
2023
Withdrawn
A Block Peabody Estate Abbey Orchard Street London SW1P 2LJ
T1 Serviceberry Small Young tree maintenanceT2 Rowan Small Young tree maintenanceT3 White…
2023
Approved
A Block Peabody Estate Abbey Orchard Street London SW1P 2LJ
T8 1 x London plane - Crown lift 2.4mT14 1 x London plane - Crown lift 2.4m. Cut back fro…
2022
Approved
Church House Great Smith Street London SW1P 3BL
Internal works comprising of the refurbishment of the Great Smith Street North Entrance C…
2022
Withdrawn
40 Great Smith Street London SW1P 3BU
Excavation of single storey basement; demolition of rear office extension and erection of…
2022
Withdrawn
40 Great Smith Street London SW1P 3BU
Excavation of single storey basement under site; associated internal alterations to main…
2022
Church House Great Smith Street London SW1P 3BL
Alterations to the Tufton Street Entrance Portico; alterations to the Great Smith Street…
2022
Church House Great Smith Street London SW1P 3BL
Alterations to the Tufton Street Entrance Portico; alterations to the Great Smith Street…
2022
Approved
A Block Peabody Estate Abbey Orchard Street London SW1P 2LJ
1 x London plane T9: crown reduce by up to 3m all round1 x London plane T10: crown reduce…
2022
Approved
A Block Peabody Estate Abbey Orchard Street London SW1P 2LJ
1 x rowan T2: undertake formative pruning in accordance with Section 7.4 of BS3990 (2010)…
2022
Approved
Church House Great Smith Street London SW1P 3BL
Internal works comprising improved legibility of heritage assets; improved civic presence…
2017
Approved
Opens Space On Dean's Yard London SW1P 3NP
1 x red chestnut (T1): Remove damaged limb back to point of origin. Reduce remaining cano…
2016
Approved
Church House Conference Centre Dean's Yard London SW1P 3NZ
Internal alterations to Flat 8 Tufton Street, within The Church House.
2016
Approved
Church House Conference Centre Dean's Yard London SW1P 3NZ
Internal alterations.
2016
Approved
St Margarets Church St Margaret Street London SW1P 3JX
2 x Indian bean trees (2895 & 2896): Crown reduce by 25%
2016
Approved
Church House Conference Centre Dean's Yard London SW1P 3NZ
Internal alterations at Staircase 3 core toilets at mezzanine between ground and first fl…
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Householder 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 statistics
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
Track this application
Sanctuary Buildings 20 Great Smith Street London SW1P 3BT
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