Postcode record · Westminster
SW1X 9HL.
SW1X 9HL has 43 known premises and 0 planning records. 11 EPC records.
No OS boundary is held for this postcode yet, so no shape is drawn.
At a glance · this postcodeWestminster profile →
43
Premises
known addresses (UPRNs)
0
Applications
none decided
—
Approval rate
no decided records
11
EPC records
ratings C 4 · D 7
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 9HL has 43 known premises and 0 planning records. 11 EPC records.
Premises (18 of 43 shown)
Name
Details
UPRN 10033527545
UPRN 10033546228
UPRN 10033546229
UPRN 10033546230
UPRN 10033546231
UPRN 10033550513
UPRN 10033565838
UPRN 10033579051
UPRN 10033582208
UPRN 10033586106
UPRN 10033527545
UPRN 10033546228
UPRN 10033546229
Show all 10 rows
UPRN 10033546230
UPRN 10033546231
UPRN 10033550513
UPRN 10033565838
UPRN 10033579051
UPRN 10033582208
UPRN 10033586106
Planning
What happened?
No planning application is linked to premises in this postcode yet.
Building control
Building-control applications and notices in this postcode, from the council register.
Name
Details
10-12 William Street: Full refurbishment of restaurant at ground and basement levels, includingnew exit at ground floor, and waterproofing to basement. · received 21 May 2026 · The Building Inspectors Ltd
3-4 William Street: Refurbishment to retail units on ground and office in basement. · received 12 Mar 2024 · Socotec Building Control Ltd
Refurbishment to restaurant to basement and ground floor. · received 4 May 2023 · Salus (Building Control & Fire Safety Consultants) Ltd
8-12 William Street: Proposed two storey rear extension including internal structural works to basement and ground floor commercial units (shell and core), plus removal of external means of escape stairs serving upper residential floors and associated fire protection upgrades to 6no. Apartments, replacement of rear balconies, adjustment to common area stairs including new lift shaft, shop front replacement and adjustment to existing building services. · received 27 Mar 2023 · Sweco Building Control Ltd
10-12 William Street: Full refurbishment of restaurant at ground and basement levels, includingnew exit at ground floor, and waterproofing to basement. · received 21 May 2026 · The Building Inspectors Ltd
3-4 William Street: Refurbishment to retail units on ground and office in basement. · received 12 Mar 2024 · Socotec Building Control Ltd
Refurbishment to restaurant to basement and ground floor. · received 4 May 2023 · Salus (Building Control & Fire Safety Consultants) Ltd
Show all 4 rows
8-12 William Street: Proposed two storey rear extension including internal structural works to basement and ground floor commercial units (shell and core), plus removal of external means of escape stairs serving upper residential floors and associated fire protection upgrades to 6no. Apartments, replacement of rear balconies, adjustment to common area stairs including new lift shaft, shop front replacement and adjustment to existing building services. · received 27 Mar 2023 · Sweco Building Control 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?
Applicants, agents and officers are attached per application; the current area build carries references only — the borough entity run adds the names here.
Development
What could it become?
Planning precedent0 applications and 0 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy11 EPC records; ratings C: 4, D: 7.
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.