Planning Atlas
AtlasPostcodeW41SY
Planning Atlas›Hounslow›…Chiswick Homefields ward›W4 1SY
Postcode record · Hounslow

W4 1SY.

W4 1SY has 75 known premises and 92 planning records — 57 approved of 75 decided (76%). 43 EPC records.

Postcode W4 1SY · boundary not held, centred on the postcodeApprovedRefusedOther92 exact15 approximate107 on the map — every match
At a glance · this postcodeHounslow profile →
75
Premises
known addresses (UPRNs)
92
Applications
75 decided
76%
Approval rate
57 approved · 18 refused
43
EPC records
ratings B 2 · C 20 · D 16 · E 4 · G 1
107
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?

W4 1SY has 75 known premises and 92 planning records — 57 approved of 75 decided (76%). 43 EPC records.

Premises (18 of 75 shown)

Name
Details
UPRN 10014074080
UPRN 10025165955
UPRN 10090801305
UPRN 10091069641
UPRN 10091690730
UPRN 10091692461
UPRN 10091693513
UPRN 10091693619
UPRN 10091944976
UPRN 10091945342
UPRN 10014074080
UPRN 10025165955
UPRN 10090801305
Show all 10 rows
UPRN 10091069641
UPRN 10091690730
UPRN 10091692461
UPRN 10091693513
UPRN 10091693619
UPRN 10091944976
UPRN 10091945342
Planning

What happened?

92 planning applications across the postcode; 57 approved of 75 decided (76%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Retrospective listed building works application for the insertion of a lift and internal alterations to the flat and installation of an A/C condenser unit on the roof of the flat
Flat 1 The Power House, 70 Chiswick High Road, Chiswick, London, W4 1SY · premises record
Applicant Mr Tim Slater · Officer Jacky Leung
Listed Building Consent to (alter/extend)
Approved
2025-12-16
Retrospective application for the insertion of a lift, installation of an A/C condenser unit on the roof of the flat and internal alterations
Flat 1, The Power House, 70 Chiswick High Road, Chiswick, London, W4 1SY · premises record
Applicant Mr Tim Slater · Officer Jacky Leung
PF-Full Applications
Approved
2025-12-16
Alterations to the existing windows on the east elevation.
Stamford Brook Bus Garage, 74 Chiswick High Road, Chiswick, London, W4 1SY · premises record
Applicant FirstBus London · Officer Jacky Leung
PF-Full Applications
Approved
2025-12-15
Erection of a rear mansard roof extension and a new front window to flat 5
BLANDFORD HOUSE 76-78 CHISWICK HIGH ROAD, CHISWICK, W4 1SY · premises record
Officer Jacky Leung
PF-Full Applications
Approved
2023-09-19
Erection of a third floor extension to no's 58 and 60 to create two additional flats with external amenity space and access from existing internal stairwell at No 60
58-60 CHISWICK HIGH ROAD, CHISWICK, W4 1SY · premises record
PF-Full Applications
Refused
2022-05-17
Erection of a third floor extension to no's 58 and 60 to create two additional flats with external amenity space and access from existing internal stairwell at No 60.
58-60 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
PF-Full Applications
Refused
2021-10-26
Removal and installation of replacement roof at Stamford Brook Bus Garage and associated works
STAMFORD BROOK BUS GARAGE 74 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
PF-Full Applications
Approved
2021-03-29
Consent to display a free-standing single sided internally illuminated static advertisement to replace the existing advert.
FOOTPATH LAND OUTSIDE BLARDFORD HOUSE 76-78 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
Applicant Mr Martin Stephens · Officer Leo Hall
Advertisement Application
Approved
2020-10-21
Certificate of lawfulness for the existing use as a self-contained flat
60 CHISWICK HIGH ROAD, CHISWICK, W4 1SY · premises record
Lawful Use Certificate
Not required
2019-09-16
Change of use of basement and ground floor from Hairdressing and ancillary beauty treatment (A1 use) to Offices (B1 use)
60 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
PF-Full Applications
Approved
2017-11-29
Retrospective listed building works application for the insertion of a lift and internal alterations to the flat and installation of an A/C condenser unit on the roof of the flat
Flat 1 The Power House, 70 Chiswick High Road, Chiswick, London, W4 1SY · premises record
Applicant Mr Tim Slater · Officer Jacky Leung
Approved
2025-12-16
More
Listed Building Consent to (alter/extend)
Retrospective application for the insertion of a lift, installation of an A/C condenser unit on the roof of the flat and internal alterations
Flat 1, The Power House, 70 Chiswick High Road, Chiswick, London, W4 1SY · premises record
Applicant Mr Tim Slater · Officer Jacky Leung
Approved
2025-12-16
More
PF-Full Applications
Alterations to the existing windows on the east elevation.
Stamford Brook Bus Garage, 74 Chiswick High Road, Chiswick, London, W4 1SY · premises record
Applicant FirstBus London · Officer Jacky Leung
Approved
2025-12-15
More
PF-Full Applications
Show all 10 rows
Erection of a rear mansard roof extension and a new front window to flat 5
BLANDFORD HOUSE 76-78 CHISWICK HIGH ROAD, CHISWICK, W4 1SY · premises record
Officer Jacky Leung
Approved
2023-09-19
More
PF-Full Applications
Erection of a third floor extension to no's 58 and 60 to create two additional flats with external amenity space and access from existing internal stairwell at No 60
58-60 CHISWICK HIGH ROAD, CHISWICK, W4 1SY · premises record
Refused
2022-05-17
More
PF-Full Applications
Erection of a third floor extension to no's 58 and 60 to create two additional flats with external amenity space and access from existing internal stairwell at No 60.
58-60 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
Refused
2021-10-26
More
PF-Full Applications
Removal and installation of replacement roof at Stamford Brook Bus Garage and associated works
STAMFORD BROOK BUS GARAGE 74 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
Approved
2021-03-29
More
PF-Full Applications
Consent to display a free-standing single sided internally illuminated static advertisement to replace the existing advert.
FOOTPATH LAND OUTSIDE BLARDFORD HOUSE 76-78 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
Applicant Mr Martin Stephens · Officer Leo Hall
Approved
2020-10-21
More
Advertisement Application
Certificate of lawfulness for the existing use as a self-contained flat
60 CHISWICK HIGH ROAD, CHISWICK, W4 1SY · premises record
Not required
2019-09-16
More
Lawful Use Certificate
Change of use of basement and ground floor from Hairdressing and ancillary beauty treatment (A1 use) to Offices (B1 use)
60 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 1SY · premises record
Approved
2017-11-29
More
PF-Full Applications

Building control

Building-control records are not yet collected for Hounslow — 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 75 premises each one covers.

Designation
Coverage
Article 4 Direction Area
Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction · reference A4D.2 · covers 75 of 75 premises. Some normally permitted changes may require planning permission.
Conservation Area
Chiswick High Road · reference HSLCA28 · covers 1 of 75 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Change of use or development that would result in new dwellings (Class MA/ZA) · reference A4D.3 · covers 1 of 75 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction · reference A4D.2 · covers 75 of 75 premises. Some normally permitted changes may require planning permission.
Conservation Area
Chiswick High Road · reference HSLCA28 · covers 1 of 75 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Change of use or development that would result in new dwellings (Class MA/ZA) · reference A4D.3 · covers 1 of 75 premises. Some normally permitted changes may require planning permission.
People

Who is involved?

Named on the latest 30 applications in this postcode — the party who applied, not the owner or occupier.

Name
Details
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Case officer on 6 applications
Case officer on 4 applications
Case officer on 3 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Case officer on 6 applications
Case officer on 4 applications
Case officer on 3 applications
Development

What could it become?

Planning precedent92 applications and 107 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy43 EPC records; ratings B: 2, C: 20, D: 16, E: 4, G: 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.

21 intent signals recorded in this postcode
HMO licence expiring · Struggling director · Ageing director · Portfolio seller · Price decline · Beatable refusal · EPC F/G · Long hold · HMO licensed
Subscribe to see the signals →
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.