Postcode record · Westminster
SW1Y 4LB.
SW1Y 4LB has 32 known premises and 59 planning records — 51 approved of 57 decided (89.5%).
No OS boundary is held for this postcode yet, so no shape is drawn.
At a glance · this postcodeWestminster profile →
32
Premises
known addresses (UPRNs)
59
Applications
57 decided
89.5%
Approval rate
51 approved · 0 refused
0
EPC records
none recorded
0
Mapped applications
shape not available
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property
What is it?
SW1Y 4LB has 32 known premises and 59 planning records — 51 approved of 57 decided (89.5%).
Premises (18 of 32 shown)
Name
Details
UPRN 10033543640
UPRN 10033547481
UPRN 10033547818
UPRN 10033548116
UPRN 10033548537
UPRN 10033548823
UPRN 10033549068
UPRN 10033549367
UPRN 10033568117
UPRN 10033568118
UPRN 10033543640
UPRN 10033547481
UPRN 10033547818
Show all 10 rows
UPRN 10033548116
UPRN 10033548537
UPRN 10033548823
UPRN 10033549068
UPRN 10033549367
UPRN 10033568117
UPRN 10033568118
Planning
What happened?
59 planning applications across the postcode; 51 approved of 57 decided (89.5%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
External repairs and renovations including the replacement of the rear garage door and adjoining pedestrian door to Masons Yard elevation, roof renovations including partial replacement of slates, restoration of windows and doors with replacement of several windows, minor repairs to front elevation brickwork adjoining existing flag pole locations, repairs to main entrance steps and repainting underside of steps, restoration of existing tiling to central lightwell, repairs and repainting of front balcony railings, repairs to front elevation stonework and lightwell facings and relocation of two existing flagpoles on the front elevation [Linked with 24/04746/FULL]
13 St James's Square London SW1Y 4LB · premises record
Listed Building Consent Application
Approved
2024-07-15
External repairs and renovations including the replacement of the rear garage door and adjoining pedestrian door to Masons Yard elevation, roof renovations including partial replacement of slates, restoration of windows and doors with replacement of several windows, minor repairs to front elevation brickwork adjoining existing flag pole locations, repairs to main entrance steps and repainting underside of steps, restoration of existing tiling to central lightwell, repairs and repainting of front balcony railings, repairs to front elevation stonework and lightwell facings and relocation of two existing flagpoles on the front elevation
13 St James's Square London SW1Y 4LB · premises record
Full Planning Permission Application
Approved
2024-07-15
Installation of new external plant in basement lightwell. Internal alterations including replacement of modern radiators and pipework with new, efficient fan coil units.
9 St James's Square London SW1Y 4LB · premises record
Listed Building Consent Application
Approved
2022-05-16
Installation of new external plant in basement lightwell.
9 St James's Square London SW1Y 4LB · premises record
Full Planning Permission Application
Approved
2022-05-16
Installation of internal mechanical extract fan at second floor level with associated ductwork at roof level.
16 - 17 St James's Square London SW1Y 4LB · premises record
Listed Building Consent Application
Approved
2021-07-07
Ductwork at roof level.
16 - 17 St James's Square London SW1Y 4LB · premises record
Full Planning Permission Application
Approved
2021-07-07
Installation of mechanical extract fan to Cigar Room at second floor with associated ductwork at roof level.
16 - 17 St James's Square London SW1Y 4LB · premises record
Full Planning Permission Application
Withdrawn
2021-01-25
Installation of mechanical extract fan to Cigar Room at second floor with associated ductwork at roof level (linked to 21/00423/FULL).
16 - 17 St James's Square London SW1Y 4LB · premises record
Listed Building Consent Application
Withdrawn
2021-01-21
Partial demolition and reconstruction of enlarged rear extension with additional storey; formation of terraces at ground, fourth, fifth and sixth floor levels; excavation to extend existing basement level; installation of plant machinery; internal alterations including installation of new grand stair; and associated external alterations in connection with increase in office floorspace (Class B1).
33 St James's Square London SW1Y 4LB · premises record
Listed Building Consent Application
Approved
2020-05-22
Partial demolition and reconstruction of enlarged rear extension with additional storey; formation of terraces at ground, fourth, fifth and sixth floor levels; excavation to extend existing basement level; installation of plant machinery; internal alterations including installation of new grand stair; and associated external alterations in connection with increase in office floorspace (Class B1).
33 St James's Square London SW1Y 4LB · premises record
Full Planning Permission Application
Approved
2020-05-22
External repairs and renovations including the replacement of the rear garage door and adjoining pedestrian door to Masons Yard elevation, roof renovations including partial replacement of slates, restoration of windows and doors with replacement of several windows, minor repairs to front elevation brickwork adjoining existing flag pole locations, repairs to main entrance steps and repainting underside of steps, restoration of existing tiling to central lightwell, repairs and repainting of front balcony railings, repairs to front elevation stonework and lightwell facings and relocation of two existing flagpoles on the front elevation [Linked with 24/04746/FULL]
13 St James's Square London SW1Y 4LB · premises record
Approved
2024-07-15
More
Listed Building Consent Application
External repairs and renovations including the replacement of the rear garage door and adjoining pedestrian door to Masons Yard elevation, roof renovations including partial replacement of slates, restoration of windows and doors with replacement of several windows, minor repairs to front elevation brickwork adjoining existing flag pole locations, repairs to main entrance steps and repainting underside of steps, restoration of existing tiling to central lightwell, repairs and repainting of front balcony railings, repairs to front elevation stonework and lightwell facings and relocation of two existing flagpoles on the front elevation
13 St James's Square London SW1Y 4LB · premises record
Approved
2024-07-15
More
Full Planning Permission Application
Installation of new external plant in basement lightwell. Internal alterations including replacement of modern radiators and pipework with new, efficient fan coil units.
9 St James's Square London SW1Y 4LB · premises record
Approved
2022-05-16
More
Listed Building Consent Application
Show all 10 rows
Installation of new external plant in basement lightwell.
9 St James's Square London SW1Y 4LB · premises record
Approved
2022-05-16
More
Full Planning Permission Application
Installation of internal mechanical extract fan at second floor level with associated ductwork at roof level.
16 - 17 St James's Square London SW1Y 4LB · premises record
Approved
2021-07-07
More
Listed Building Consent Application
Ductwork at roof level.
16 - 17 St James's Square London SW1Y 4LB · premises record
Approved
2021-07-07
More
Full Planning Permission Application
Installation of mechanical extract fan to Cigar Room at second floor with associated ductwork at roof level.
16 - 17 St James's Square London SW1Y 4LB · premises record
Withdrawn
2021-01-25
More
Full Planning Permission Application
Installation of mechanical extract fan to Cigar Room at second floor with associated ductwork at roof level (linked to 21/00423/FULL).
16 - 17 St James's Square London SW1Y 4LB · premises record
Withdrawn
2021-01-21
More
Listed Building Consent Application
Partial demolition and reconstruction of enlarged rear extension with additional storey; formation of terraces at ground, fourth, fifth and sixth floor levels; excavation to extend existing basement level; installation of plant machinery; internal alterations including installation of new grand stair; and associated external alterations in connection with increase in office floorspace (Class B1).
33 St James's Square London SW1Y 4LB · premises record
Approved
2020-05-22
More
Listed Building Consent Application
Partial demolition and reconstruction of enlarged rear extension with additional storey; formation of terraces at ground, fourth, fifth and sixth floor levels; excavation to extend existing basement level; installation of plant machinery; internal alterations including installation of new grand stair; and associated external alterations in connection with increase in office floorspace (Class B1).
33 St James's Square London SW1Y 4LB · premises record
Approved
2020-05-22
More
Full Planning Permission Application
Building control
Building-control applications and notices in this postcode, from the council register.
Name
Details
Access control and associated cause and effect. · received 14 Aug 2025 · Bureau Veritas Building Control UK Ltd
Refresh of existing offices inclusive of replacement riser walls, new controlled fittings, alterations to ventilation, smoke detection, emergency lighting and signage and replacement flooring. · received 16 Apr 2025 · Bureau Veritas Building Control UK Ltd
Workstream 2: Comprehensive refurbishment of the St James's Square main entrance and reception area at the front of the building. Upgrade to the Ormond Yard entrance and reception area at the rear of the building. Upgrade to car park and cycle parking. New 'End of Trip' (EoT) facilities. Refurbishment of heritage sensitive rooms on Ground and First Floors within No. 11 and 12. Category A enhancements and refurbishment to the heritage office floorspace on Second to Fourth Floor. Improved accessibility within constraints of the heritage building. Replacement of existing concrete roof tiles with new slate tiles. · received 18 Mar 2024 · Plans Approved Conditionally · Knightlights Property International S.A. C/o Planet Rainbow
CAT A refurbishment work for Level 1-Level 6 WC refurbishment work for Ground floor to Level 6 Level 6 terrace upgrade Ground floor lightwells and terrace upgrade. · received 16 Jun 2023 · Plans Approved Conditionally · Knightlights Property International S.A.
Workstream 2: Main building refurbishment work. · received 23 Jan 2023
Workstream 1: Cat A refurbishment and toilet fitout work for L2/L3/L5/L6 rear part of the building. · received 23 Jan 2023
The East India Club: Internal alterations to existing basement including remodelled gym, toilets and kitchen. · received 20 Jan 2023 · NHBC Building Control Services Ltd
Office refurbishment and alterations to part level 2 including 9 offices, 1 meeting room, tea point and new shower & changing area. · received 4 May 2020 · Shore Engineering Ltd
11-12 St. James's Square: Change to the fire alarm system operating procedures to allow a 'staff alarm'. · Plans Approved Conditionally · C. S. Todd & Associates Ltd
Access control and associated cause and effect. · received 14 Aug 2025 · Bureau Veritas Building Control UK Ltd
Refresh of existing offices inclusive of replacement riser walls, new controlled fittings, alterations to ventilation, smoke detection, emergency lighting and signage and replacement flooring. · received 16 Apr 2025 · Bureau Veritas Building Control UK Ltd
Workstream 2: Comprehensive refurbishment of the St James's Square main entrance and reception area at the front of the building. Upgrade to the Ormond Yard entrance and reception area at the rear of the building. Upgrade to car park and cycle parking. New 'End of Trip' (EoT) facilities. Refurbishment of heritage sensitive rooms on Ground and First Floors within No. 11 and 12. Category A enhancements and refurbishment to the heritage office floorspace on Second to Fourth Floor. Improved accessibility within constraints of the heritage building. Replacement of existing concrete roof tiles with new slate tiles. · received 18 Mar 2024 · Plans Approved Conditionally · Knightlights Property International S.A. C/o Planet Rainbow
Show all 9 rows
CAT A refurbishment work for Level 1-Level 6 WC refurbishment work for Ground floor to Level 6 Level 6 terrace upgrade Ground floor lightwells and terrace upgrade. · received 16 Jun 2023 · Plans Approved Conditionally · Knightlights Property International S.A.
Workstream 2: Main building refurbishment work. · received 23 Jan 2023
Workstream 1: Cat A refurbishment and toilet fitout work for L2/L3/L5/L6 rear part of the building. · received 23 Jan 2023
The East India Club: Internal alterations to existing basement including remodelled gym, toilets and kitchen. · received 20 Jan 2023 · NHBC Building Control Services Ltd
Office refurbishment and alterations to part level 2 including 9 offices, 1 meeting room, tea point and new shower & changing area. · received 4 May 2020 · Shore Engineering Ltd
11-12 St. James's Square: Change to the fire alarm system operating procedures to allow a 'staff alarm'. · Plans Approved Conditionally · C. S. Todd & Associates Ltd
Place
What affects it?
Designations are shown per premises today (open any premises above); the postcode-level designation summary is built with the borough entity run. Use the map's designations filter to see them over the postcode now.
People
Who is involved?
Named on the latest 30 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 6 applications
Applicant on 5 applications
Applicant on 4 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 6 applications
Applicant on 5 applications
Applicant on 4 applications
Show all 10 rows
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent59 applications and 0 mapped decisions in this postcode — precedent for what has been permitted and refused here.
EnergyNo EPC records joined yet.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals · Planning Atlas Pro
Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.