Postcode record · Westminster
SW1Y 6LX.
SW1Y 6LX has 124 known premises and 10 planning records — 6 approved of 10 decided (60%). 8 EPC records.
No OS boundary is held for this postcode yet, so no shape is drawn.
At a glance · this postcodeWestminster profile →
124
Premises
known addresses (UPRNs)
10
Applications
10 decided
60%
Approval rate
6 approved · 0 refused
8
EPC records
ratings B 1 · C 2 · D 4 · E 1
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 6LX has 124 known premises and 10 planning records — 6 approved of 10 decided (60%). 8 EPC records.
Premises (18 of 124 shown)
Name
Details
UPRN 10033536775
UPRN 10033536776
UPRN 10033536777
UPRN 10033536778
UPRN 10033536779
UPRN 10033536780
UPRN 10033536781
UPRN 10033536782
UPRN 10033536783
UPRN 10033536784
UPRN 10033536775
UPRN 10033536776
UPRN 10033536777
Show all 10 rows
UPRN 10033536778
UPRN 10033536779
UPRN 10033536780
UPRN 10033536781
UPRN 10033536782
UPRN 10033536783
UPRN 10033536784
Planning
What happened?
10 planning applications across the postcode; 6 approved of 10 decided (60%). Latest 10 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Erection of extension and new terrace with balustrade at rear fourth floor level.
Flat 7 59 Jermyn Street London SW1Y 6LX · premises record
Full Planning Permission Application
Approved
2025-03-24
Creation of rear roof terrace at fourth floor level including new decking; new metal handrail; refurbishment of existing fire escape staircase.
Flat 7 59 Jermyn Street London SW1Y 6LX · premises record
Full Planning Permission Application
Approved
2025-02-03
Installation of dormer windows to rear fourth floor level.
Flat 7 59 Jermyn Street London SW1Y 6LX · premises record
Full Planning Permission Application
Approved
2025-01-30
Display of a non-illuminated fascia sign measuring 57cm x 70cm
48 Jermyn Street London SW1Y 6LX · premises record
Advert Application (ADV)
Not required
2022-11-23
Installation of replacement plant on first floor flat roof.
48 Jermyn Street London SW1Y 6LX · premises record
Full Planning Permission Application
Withdrawn
2016-10-05
Display of externally illuminated signs mounted to the shopfront elevation each measuring 0.49m x 0.60m to the Jermyn Street and Duke Street elevations.
48 Jermyn Street London SW1Y 6LX · premises record
Advert Application (ADV)
Withdrawn
2016-10-03
Alterations to the existing shopfront on the Jermyn Street and Duke Street elevations including the creation of a new entrance on the Duke Street elevation.
48 Jermyn Street London SW1Y 6LX · premises record
Full Planning Permission Application
Withdrawn
2016-10-03
Replacement of one window in the western elevation of the lower floor with two separate windows, reconstruction of the mansard-style roof at the western elevation of the lower floor; minor alterations to the size and position of the door opening in the western elevation all to lower floor of Flat 5 and replacement of one air conditioning unit on the northern elevation of the upper floor of Flat 5.
Flat 5 59 Jermyn Street London SW1Y 6LX · premises record
Certificate of Lawfulness (existing)
Approved
2012-09-13
Display of non-illuminated letters on fascia and new lettering to existing canopies.
48 - 50 Jermyn Street London SW1Y 6LX · premises record
Advert Application (ADV)
Approved
2008-08-28
Alterations to shopfront on Jermyn Street frontage to provide new entrance.
48 - 50 Jermyn Street London SW1Y 6LX · premises record
Full Planning Permission Application
Approved
—
Erection of extension and new terrace with balustrade at rear fourth floor level.
Flat 7 59 Jermyn Street London SW1Y 6LX · premises record
Approved
2025-03-24
More
Full Planning Permission Application
Creation of rear roof terrace at fourth floor level including new decking; new metal handrail; refurbishment of existing fire escape staircase.
Flat 7 59 Jermyn Street London SW1Y 6LX · premises record
Approved
2025-02-03
More
Full Planning Permission Application
Installation of dormer windows to rear fourth floor level.
Flat 7 59 Jermyn Street London SW1Y 6LX · premises record
Approved
2025-01-30
More
Full Planning Permission Application
Show all 10 rows
Display of a non-illuminated fascia sign measuring 57cm x 70cm
48 Jermyn Street London SW1Y 6LX · premises record
Not required
2022-11-23
More
Advert Application (ADV)
Installation of replacement plant on first floor flat roof.
48 Jermyn Street London SW1Y 6LX · premises record
Withdrawn
2016-10-05
More
Full Planning Permission Application
Display of externally illuminated signs mounted to the shopfront elevation each measuring 0.49m x 0.60m to the Jermyn Street and Duke Street elevations.
48 Jermyn Street London SW1Y 6LX · premises record
Withdrawn
2016-10-03
More
Advert Application (ADV)
Alterations to the existing shopfront on the Jermyn Street and Duke Street elevations including the creation of a new entrance on the Duke Street elevation.
48 Jermyn Street London SW1Y 6LX · premises record
Withdrawn
2016-10-03
More
Full Planning Permission Application
Replacement of one window in the western elevation of the lower floor with two separate windows, reconstruction of the mansard-style roof at the western elevation of the lower floor; minor alterations to the size and position of the door opening in the western elevation all to lower floor of Flat 5 and replacement of one air conditioning unit on the northern elevation of the upper floor of Flat 5.
Flat 5 59 Jermyn Street London SW1Y 6LX · premises record
Approved
2012-09-13
More
Certificate of Lawfulness (existing)
Display of non-illuminated letters on fascia and new lettering to existing canopies.
48 - 50 Jermyn Street London SW1Y 6LX · premises record
Approved
2008-08-28
More
Advert Application (ADV)
Alterations to shopfront on Jermyn Street frontage to provide new entrance.
48 - 50 Jermyn Street London SW1Y 6LX · premises record
Approved
—
More
Full Planning Permission Application
Building control
Building-control applications and notices in this postcode, from the council register.
Name
Details
Existing 5th floor cellular office demise having minor refurbishment with works to include replacing a tea point. · received 25 Mar 2026
Fire stopping within the compartmentation of common parts of the building listed - Service Risers, Common areas, including stair cores, lobbies, toilets etc, Basement areas. · received 25 Feb 2026
First floor office alterations. · received 5 Dec 2025 · Harwood BCAI Ltd
54 Jermyn Street: Cat B office fit-out to level 4 including installations of new kitchen. · received 20 Sept 2024 · Sweco Building Control Ltd
54Jermyn Street: Lower ground floor alterations to create shower block and bike storage. · received 19 Sept 2023 · Sweco Building Control Ltd
Refurbishment and Internal Alterations to Level 2 Link Block. · received 9 Dec 2022 · Sweco Building Control Ltd
59-60 Jermyn Street: New/modified fire alarm works. · received 17 Nov 2022 · Stroma Building Control Ltd
Internal alteration merging two office rooms into one within existing 6th floor office space & new access corridor between meeting room and office spaces. · received 11 Aug 2022 · Socotec Building Control Ltd
57 & 58 Jermyn Street - electrical works to the common parts including the installation of new emergency lighting. · received 14 Jul 2022 · Shore Engineering Ltd
2nd Floor office fit out and associated works. · received 22 Jan 2021 · Stroma Building Control
Existing 5th floor cellular office demise having minor refurbishment with works to include replacing a tea point. · received 25 Mar 2026
Fire stopping within the compartmentation of common parts of the building listed - Service Risers, Common areas, including stair cores, lobbies, toilets etc, Basement areas. · received 25 Feb 2026
First floor office alterations. · received 5 Dec 2025 · Harwood BCAI Ltd
Show all 10 rows
54 Jermyn Street: Cat B office fit-out to level 4 including installations of new kitchen. · received 20 Sept 2024 · Sweco Building Control Ltd
54Jermyn Street: Lower ground floor alterations to create shower block and bike storage. · received 19 Sept 2023 · Sweco Building Control Ltd
Refurbishment and Internal Alterations to Level 2 Link Block. · received 9 Dec 2022 · Sweco Building Control Ltd
59-60 Jermyn Street: New/modified fire alarm works. · received 17 Nov 2022 · Stroma Building Control Ltd
Internal alteration merging two office rooms into one within existing 6th floor office space & new access corridor between meeting room and office spaces. · received 11 Aug 2022 · Socotec Building Control Ltd
57 & 58 Jermyn Street - electrical works to the common parts including the installation of new emergency lighting. · received 14 Jul 2022 · Shore Engineering Ltd
2nd Floor office fit out and associated works. · received 22 Jan 2021 · Stroma Building Control
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 10 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Development
What could it become?
Planning precedent10 applications and 0 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings B: 1, C: 2, D: 4, E: 1.
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.