Postcode record · Westminster
W1T 3LG.
W1T 3LG has 30 known premises and 11 planning records — 8 approved of 11 decided (72.7%). 24 EPC records.
Postcode W1T 3LG · boundary not held, centred on the postcodeApprovedRefusedOther26 exact7 approximate33 on the map — every match
At a glance · this postcodeWestminster profile →
30
Premises
known addresses (UPRNs)
11
Applications
11 decided
72.7%
Approval rate
8 approved · 3 refused
24
EPC records
ratings B 4 · C 13 · D 6 · F 1
33
Mapped applications
inside the postcode shape
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property
What is it?
W1T 3LG has 30 known premises and 11 planning records — 8 approved of 11 decided (72.7%). 24 EPC records.
Premises (18 of 30 shown)
Name
Details
UPRN 10033576217
UPRN 10033576218
UPRN 10033626433
UPRN 10033626434
UPRN 10033626435
UPRN 10033626436
UPRN 10033626437
UPRN 10033626438
UPRN 10033626439
UPRN 10033631409
UPRN 10033576217
UPRN 10033576218
UPRN 10033626433
Show all 10 rows
UPRN 10033626434
UPRN 10033626435
UPRN 10033626436
UPRN 10033626437
UPRN 10033626438
UPRN 10033626439
UPRN 10033631409
Planning
What happened?
11 planning applications across the postcode; 8 approved of 11 decided (72.7%). Latest 11 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Replacement of timber sash windows and French doors with thermally broken aluminium sash windows and bi-fold doors to match existing on the front, side and rear facing dormers.
Flat 21 York House 12 Berners Street London W1T 3LG · premises record
Full Planning Permission Application
Approved
2023-11-09
Use of former plant room at basement level to provide 2 additional rooms to flat 38 (Class C3). External works within lightwell including installation of new fire escape.
York House 12 Berners Street London W1T 3LG · premises record
Full Planning Permission Application
Approved
2019-04-16
Installation of new doors and windows in lightwell in connection with use as part of the basement as a residential unit (Class C3), with associated cycle parking in the refuse area.
York House 12 Berners Street London W1T 3LG · premises record
Full Planning Permission Application
Approved
2018-12-19
Use of former plant/tank spaces at basement floor as residential (Class C3) to provide 2 residential units. External works within rear lightwell including installation of new fire escape, new doors and new windows and alterations to Flat 10.
York House 12 Berners Street London W1T 3LG · premises record
Full Planning Permission Application
Refused
2018-09-19
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT DATED 27/04/1995:DRAWING INDICATING SECTIONS THROUGH MAIN ENTRANCE APPROACHES
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS GRIFFIN HOUSE · Agent SAUNDERS PARTNERSHIP ARCHTS GRIFFIN HOUSE · Officer Ken Powell
Approval of Details (Full PP)
Refused
1997-04-08
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT DATED 27/04/95 COND.S 4 & 7:SCHEDULE OF PROPOSED MATERIALS
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS. GRIFFIN HOUSE · Agent SAUNDERS PARTNERSHIP ARCHTS. GRIFFIN HOUSE · Officer Ken Powell
Approval of Details (Full PP)
Approved
1997-01-29
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT OF 27/4/95 COND.S 8(i),(ii),(v) & (vi):DRAWINGS OF SECTION THROUGH PROPOSED GENRAL ROOF GUARDING,DETAILING TO FENESTRATION
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS · Agent SAUNDERS PARTNERSHIP ARCHTS
Approval of Details (Full PP)
Approved
1996-09-18
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT COND.8(iii) DRAWING ILLUSTRATING DETAILS OF REFURBISHMENT OF EXISTING CUPOLAS
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Approval of Details (Full PP)
Approved
1996-08-29
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT DATED 27/04/95 COND.8(iv):DRAWINGS OF ALTERATIONS TO OPENINGS ON ELEVATIONS
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS · Agent SAUNDERS PARTNERSHIP ARCHTS
Approval of Details (Full PP)
Approved
1996-06-24
APPROVAL OF DETAILS PURSUANT TO CONSERVATION AREA CONSENT DATED 23/01/96:COPY OF LETTER OF INTENT IN CONNECTION WITH CONTRACT FOR CARRYING OUT DEVELOPMENT
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Approval of Details (ADCAC)
Refused
1996-03-21
Replacement of timber sash windows and French doors with thermally broken aluminium sash windows and bi-fold doors to match existing on the front, side and rear facing dormers.
Flat 21 York House 12 Berners Street London W1T 3LG · premises record
Approved
2023-11-09
More
Full Planning Permission Application
Use of former plant room at basement level to provide 2 additional rooms to flat 38 (Class C3). External works within lightwell including installation of new fire escape.
York House 12 Berners Street London W1T 3LG · premises record
Approved
2019-04-16
More
Full Planning Permission Application
Installation of new doors and windows in lightwell in connection with use as part of the basement as a residential unit (Class C3), with associated cycle parking in the refuse area.
York House 12 Berners Street London W1T 3LG · premises record
Approved
2018-12-19
More
Full Planning Permission Application
Show all 10 rows
Use of former plant/tank spaces at basement floor as residential (Class C3) to provide 2 residential units. External works within rear lightwell including installation of new fire escape, new doors and new windows and alterations to Flat 10.
York House 12 Berners Street London W1T 3LG · premises record
Refused
2018-09-19
More
Full Planning Permission Application
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT DATED 27/04/1995:DRAWING INDICATING SECTIONS THROUGH MAIN ENTRANCE APPROACHES
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS GRIFFIN HOUSE · Agent SAUNDERS PARTNERSHIP ARCHTS GRIFFIN HOUSE · Officer Ken Powell
Refused
1997-04-08
More
Approval of Details (Full PP)
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT DATED 27/04/95 COND.S 4 & 7:SCHEDULE OF PROPOSED MATERIALS
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS. GRIFFIN HOUSE · Agent SAUNDERS PARTNERSHIP ARCHTS. GRIFFIN HOUSE · Officer Ken Powell
Approved
1997-01-29
More
Approval of Details (Full PP)
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT OF 27/4/95 COND.S 8(i),(ii),(v) & (vi):DRAWINGS OF SECTION THROUGH PROPOSED GENRAL ROOF GUARDING,DETAILING TO FENESTRATION
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS · Agent SAUNDERS PARTNERSHIP ARCHTS
Approved
1996-09-18
More
Approval of Details (Full PP)
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT COND.8(iii) DRAWING ILLUSTRATING DETAILS OF REFURBISHMENT OF EXISTING CUPOLAS
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Approved
1996-08-29
More
Approval of Details (Full PP)
APPROVAL OF DETAILS PURSUANT TO PLANNING CONSENT DATED 27/04/95 COND.8(iv):DRAWINGS OF ALTERATIONS TO OPENINGS ON ELEVATIONS
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Applicant SAUNDERS PARTNERSHIP ARCHTS · Agent SAUNDERS PARTNERSHIP ARCHTS
Approved
1996-06-24
More
Approval of Details (Full PP)
APPROVAL OF DETAILS PURSUANT TO CONSERVATION AREA CONSENT DATED 23/01/96:COPY OF LETTER OF INTENT IN CONNECTION WITH CONTRACT FOR CARRYING OUT DEVELOPMENT
Flats 1 - 21 York House 12 Berners Street London W1T 3LG · premises record
Refused
1996-03-21
More
Approval of Details (ADCAC)
Building control
Building-control records are not yet collected for Westminster — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 30 premises each one covers.
Designation
Coverage
Archaeological Priority Area
City of Westminster APA 2.5: Great Estates Summary and Definition The Great Estates APA covers an area bounded by Park Lane to the west, Green Park and St James’s Park to the south, Haymarket, Shaftesbury Avenue, Charing Cross Road and t · reference 76098 · covers 30 of 30 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Direction Class E To C3 In Central Activities Zone · reference 23/00004/REG_4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 30 of 30 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
East Marylebone · reference CONARA/1170 · covers 30 of 30 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Archaeological Priority Area
City of Westminster APA 2.5: Great Estates Summary and Definition The Great Estates APA covers an area bounded by Park Lane to the west, Green Park and St James’s Park to the south, Haymarket, Shaftesbury Avenue, Charing Cross Road and t · reference 76098 · covers 30 of 30 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Direction Class E To C3 In Central Activities Zone · reference 23/00004/REG_4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Show all 5 rows
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 30 of 30 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
East Marylebone · reference CONARA/1170 · covers 30 of 30 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
People
Who is involved?
Named on the latest 11 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Applicant on 2 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
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Development
What could it become?
Planning precedent11 applications and 33 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy24 EPC records; ratings B: 4, C: 13, D: 6, F: 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
The Developer PlanOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
8 intent signals recorded in this postcode
Price decline · EPC F/G · Long hold
Subscribe to see the signals →Thinking about a project here?
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.