Postcode record · Westminster
SW1X 8DT.
SW1X 8DT has 34 known premises and 8 planning records — 3 approved of 6 decided (50%). 17 EPC records.
No OS boundary is held for this postcode yet, so no shape is drawn.
At a glance · this postcodeWestminster profile →
34
Premises
known addresses (UPRNs)
8
Applications
6 decided
50%
Approval rate
3 approved · 2 refused
17
EPC records
ratings C 9 · D 5 · E 3
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?
SW1X 8DT has 34 known premises and 8 planning records — 3 approved of 6 decided (50%). 17 EPC records.
Premises (18 of 34 shown)
Name
Details
UPRN 10033557863
UPRN 10033557864
UPRN 10033557865
UPRN 10033557866
UPRN 10033557867
UPRN 10033557868
UPRN 10033573557
UPRN 10033611461
UPRN 10033611474
UPRN 10033643167
UPRN 10033557863
UPRN 10033557864
UPRN 10033557865
Show all 10 rows
UPRN 10033557866
UPRN 10033557867
UPRN 10033557868
UPRN 10033573557
UPRN 10033611461
UPRN 10033611474
UPRN 10033643167
Planning
What happened?
8 planning applications across the postcode; 3 approved of 6 decided (50%). Latest 8 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Replacement of front, side and rear elevation windows with new timber sash windows slim-line double glazed to match existing.
12 Chesham Street London SW1X 8DT · premises record
Certificate of Lawfulness (proposed)
Approved
2022-01-12
Erection of roof extension to rear at second floor level above mews property (Site includes 83 Lyall Mews West).
14 Chesham Street London SW1X 8DT · premises record
Full Planning Permission Application
Refused
2013-05-16
Removal of (part) existing roof.
14 Chesham Street London SW1X 8DT · premises record
—
Unknown
2006-03-17
Erection of mansard roof extension (83 Lyall Mews West) together with alterations to fenestration (14 Chesham Street), including new entrance at front ground floor level.
14 Chesham Street London SW1X 8DT · premises record
Full Planning Permission Application
Refused
2006-03-17
Excavation within basement vaults to create additional residential accommodation for use in connection with the existing dwelling, removal of part of concrete plinth in front of property and installation of flat glass panelled rooflight over. Alterations to front railings.
12 Chesham Street London SW1X 8DT · premises record
Full Planning Permission Application
Approved
2005-12-05
Alterations including excavation at basement level, installation of 4 air conditioning units and 2 rooflights at rear ground floor level, installation of new entrance doors and canopies on Lyall Mews West and Chesham Street and alterations to fenestration (Chesham Street and Lyall Mews West elevations). (Site includes No. 83 Lyall Mews West).
14 Chesham Street London SW1X 8DT · premises record
Full
Approved
2005-11-14
Erection of mansard roof extension and alterations to fenestration of 83 Lyall Mews West and installation of bottle balustrading to roof, entrance portico, raising height of rear first floor level terrace, installation of screening and lantern light to rear first floor terrace and alterations to fenestration of 14 Chesham Street in connection with continued use as a single-family dwellinghouse.
14 Chesham Street London SW1X 8DT · premises record
Full Planning Permission Application
Withdrawn
2005-04-06
Replacement of front, side and rear elevation windows with new timber sash windows slim-line double glazed to match existing.
12 Chesham Street London SW1X 8DT · premises record
Approved
2022-01-12
More
Certificate of Lawfulness (proposed)
Erection of roof extension to rear at second floor level above mews property (Site includes 83 Lyall Mews West).
14 Chesham Street London SW1X 8DT · premises record
Refused
2013-05-16
More
Full Planning Permission Application
Removal of (part) existing roof.
14 Chesham Street London SW1X 8DT · premises record
Unknown
2006-03-17
More
—
Show all 8 rows
Erection of mansard roof extension (83 Lyall Mews West) together with alterations to fenestration (14 Chesham Street), including new entrance at front ground floor level.
14 Chesham Street London SW1X 8DT · premises record
Refused
2006-03-17
More
Full Planning Permission Application
Excavation within basement vaults to create additional residential accommodation for use in connection with the existing dwelling, removal of part of concrete plinth in front of property and installation of flat glass panelled rooflight over. Alterations to front railings.
12 Chesham Street London SW1X 8DT · premises record
Approved
2005-12-05
More
Full Planning Permission Application
Demolition of internal floors.
14 Chesham Street London SW1X 8DT · premises record
Unknown
2005-11-14
More
—
Alterations including excavation at basement level, installation of 4 air conditioning units and 2 rooflights at rear ground floor level, installation of new entrance doors and canopies on Lyall Mews West and Chesham Street and alterations to fenestration (Chesham Street and Lyall Mews West elevations). (Site includes No. 83 Lyall Mews West).
14 Chesham Street London SW1X 8DT · premises record
Approved
2005-11-14
More
Full
Erection of mansard roof extension and alterations to fenestration of 83 Lyall Mews West and installation of bottle balustrading to roof, entrance portico, raising height of rear first floor level terrace, installation of screening and lantern light to rear first floor terrace and alterations to fenestration of 14 Chesham Street in connection with continued use as a single-family dwellinghouse.
14 Chesham Street London SW1X 8DT · premises record
Withdrawn
2005-04-06
More
Full Planning Permission Application
Building control
Building-control applications and notices in this postcode, from the council register.
Name
Details
Refurbishment and conversion of existing flat (2 bedroom 2 bathroom) into a 3 bedroom 3 bathroom basement flat. · received 25 Oct 2022 · Dominvs Property Developments Limited
Internal alterations and reconfiguration of existing three storey dwelling. The work excludes any gas work subject to the Gas Safety (Installation and Use) Regulations 1998 and electrical work notifiable under the Building Regulation 12(6A) · received 17 Mar 2022 · LB Building Control Ltd
Internal alterations and reconfiguration of existing three storey dwelling. · received 27 Jan 2022 · Assent Building Control Ltd
Diplomat Hotel: Refurbishment of Existing Hotel and New Mansard Roof Extension, New Lift, Replacement of Service Stairs, Excavation to Install Tanking to Basement Level and Vaults.
Refurbishment and conversion of existing flat (2 bedroom 2 bathroom) into a 3 bedroom 3 bathroom basement flat. · received 25 Oct 2022 · Dominvs Property Developments Limited
Internal alterations and reconfiguration of existing three storey dwelling. The work excludes any gas work subject to the Gas Safety (Installation and Use) Regulations 1998 and electrical work notifiable under the Building Regulation 12(6A) · received 17 Mar 2022 · LB Building Control Ltd
Internal alterations and reconfiguration of existing three storey dwelling. · received 27 Jan 2022 · Assent Building Control Ltd
Show all 4 rows
Diplomat Hotel: Refurbishment of Existing Hotel and New Mansard Roof Extension, New Lift, Replacement of Service Stairs, Excavation to Install Tanking to Basement Level and Vaults.
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 8 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Development
What could it become?
Planning precedent8 applications and 0 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy17 EPC records; ratings C: 9, D: 5, E: 3.
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.
4 intent signals recorded in this postcode
Charge registered · Price decline · Long hold · Ageing director
Subscribe to see the signals → Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.