Postcode record · Westminster
SW1A 1RL.
SW1A 1RL has 55 known premises and 1 planning record. 21 EPC records.
Postcode SW1A 1RL · boundary not held, centred on the postcodeApprovedRefusedOther4 exact13 approximate17 on the map — every match
At a glance · this postcodeWestminster profile →
55
Premises
known addresses (UPRNs)
1
Applications
none decided
None
Decisions on record
applications here have no recorded outcomes yet
21
EPC records
ratings C 13 · D 7 · E 1
17
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?
SW1A 1RL has 55 known premises and 1 planning record. 21 EPC records.
Premises (18 of 55 shown)
Name
Details
UPRN 10033529113
UPRN 10033529115
UPRN 10033529118
UPRN 10033529120
UPRN 10033529122
UPRN 10033529124
UPRN 10033601254
UPRN 10033601255
UPRN 10033601263
UPRN 10033601264
UPRN 10033529113
UPRN 10033529115
UPRN 10033529118
Show all 10 rows
UPRN 10033529120
UPRN 10033529122
UPRN 10033529124
UPRN 10033601254
UPRN 10033601255
UPRN 10033601263
UPRN 10033601264
Planning
What happened?
1 planning application across the postcode. Latest 1 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Use of Flat 14 as a self-containted residential flat (Class C3).
Flat 14 Arlington House 17 - 20 Arlington Street SW1A 1RL · premises record
Certificate of Lawfulness (proposed)
Withdrawn
2025-10-29
Use of Flat 14 as a self-containted residential flat (Class C3).
Flat 14 Arlington House 17 - 20 Arlington Street SW1A 1RL · premises record
Withdrawn
2025-10-29
More
Certificate of Lawfulness (proposed)
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 55 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 55 of 55 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 55 of 55 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 55 of 55 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 55 of 55 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
St James's · reference CONARA/1330 · covers 55 of 55 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 55 of 55 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 55 of 55 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 55 of 55 premises. Some normally permitted changes may require planning permission.
Show all 5 rows
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 55 of 55 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
St James's · reference CONARA/1330 · covers 55 of 55 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 1 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 1 application
Agent on 1 application
Case officer on 1 application
Applicant on 1 application
Agent on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent1 applications and 17 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy21 EPC records; ratings C: 13, D: 7, 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 ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.