Postcode record · Hounslow
W4 3AY.
W4 3AY has 122 known premises and 44 planning records — 33 approved of 40 decided (82.5%). 45 EPC records.
Postcode W4 3AY · boundary not held, centred on the postcodeApprovedRefusedOther57 exact10 approximate67 on the map — every match
At a glance · this postcodeHounslow profile →
122
Premises
known addresses (UPRNs)
44
Applications
40 decided
82.5%
Approval rate
33 approved · 7 refused
45
EPC records
ratings C 18 · D 19 · E 7 · F 1
67
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 3AY has 122 known premises and 44 planning records — 33 approved of 40 decided (82.5%). 45 EPC records.
Premises (18 of 122 shown)
Name
Details
UPRN 10014074071
UPRN 10014074072
UPRN 10014074088
UPRN 10091148685
UPRN 10091148985
UPRN 10091149039
UPRN 10091149169
UPRN 10091692207
UPRN 10091692208
UPRN 10091692218
UPRN 10014074071
UPRN 10014074072
UPRN 10014074088
Show all 10 rows
UPRN 10091148685
UPRN 10091148985
UPRN 10091149039
UPRN 10091149169
UPRN 10091692207
UPRN 10091692208
UPRN 10091692218
Planning
What happened?
44 planning applications across the postcode; 33 approved of 40 decided (82.5%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Certificate of lawfulness existing for the continued use as a self contained flat
563B Chiswick High Road, Chiswick, London, W4 3AY · premises record
Applicant Mr Joseph Cross · Officer Lucia Orsi
Lawful Development Certificate (Existing)
Approved
2026-03-02
Certificate of lawfulness for the proposed use of the premises as a booking office for private hire vehicles
559 Chiswick High Road,Chiswick,London,W4 3AY · premises record
Applicant Khuram Khan · Officer Lucia Orsi
Lawful Development Certificate (Proposed)
Approved
2026-01-19
Certificate of lawfulness existing for the continued use as a flat
563A Chiswick High Road, Chiswick, London, W4 3AY · premises record
Officer Lucia Orsi
Lawful Development Certificate (Existing)
Approved
2025-12-05
Replacement of single glazed timber windows with secondary glazing timber windows to the house.
533A Chiswick High Road,Chiswick, London, W4 3AY · premises record
Applicant Mr Graham Colombotti · Officer Joedee McKenzie
PF-Full Applications
Approved
2024-12-24
Erection of a single storey rear infill extension to the ground floor flat, alterations to existing rear extension to the first floor flat and relocation of external staircase
GROUND & FIRST FLOOR FLATS 539 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Ms M Peters · Officer zzzJack Meacher
PF-Full Applications
Approved
2023-02-16
Erection of a two storey rear extension to the ground and first floor flats to enclose the relocation of the external stairs incorporating the formation of a glazed infill extension to the first floor flat
FLAT FIRST FLOOR 539 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Ms M Peters · Officer zzzJack Meacher
PF-Full Applications
Refused
2022-08-25
Replacement of rear timber doors with UPCV doors and double glazed panels
533A CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Mr James Smith · Officer zzzJack Meacher
PF-Full Applications
Approved
2022-08-19
Erection of a part subterranean single storey rear extension and subterranean rear courtyard and installation of a side window to the existing lower ground floor flat.
545A CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Francis & Olive Paul Mirandah & Banumathi · Officer Daniel Hughes
PF-Full Applications
Refused
2022-08-12
Works to trees in the rear garden comprising - T1 Sycamore (Acer pseudoplatanus) reduce back to previous reduction points (re-pollard) equating to roughly 4-5m reduction; T2 Sycamore (Acer pseudoplatanus) fell to ground level - poison stump; T3 Apple: Reduce back to previous reduction points, leaving furnishing growth, equating to a reduction of roughly 2-3m all round; T4 Sycamore (Acer pseudoplatanus) reduce the growth back to the previous reduction points,(re-pollard) - this reduction will equate to roughly 5-6m off the top and 2-3m laterally
529 - 531 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Not disclosed · Officer zzzJack Meacher
Works to Trees in Conservation Area
Approved
2021-07-22
Works to tree in a conservation area: Eucalyptus T1-fell, the tree is outgrowing its location it has some decay in the trunk and has recently shed a large limb from the upper crown and is over shading the garden.
539 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant scott · Officer zzzJack Meacher
Works to Trees in Conservation Area
Approved
2020-08-26
Certificate of lawfulness existing for the continued use as a self contained flat
563B Chiswick High Road, Chiswick, London, W4 3AY · premises record
Applicant Mr Joseph Cross · Officer Lucia Orsi
Approved
2026-03-02
More
Lawful Development Certificate (Existing)
Certificate of lawfulness for the proposed use of the premises as a booking office for private hire vehicles
559 Chiswick High Road,Chiswick,London,W4 3AY · premises record
Applicant Khuram Khan · Officer Lucia Orsi
Approved
2026-01-19
More
Lawful Development Certificate (Proposed)
Certificate of lawfulness existing for the continued use as a flat
563A Chiswick High Road, Chiswick, London, W4 3AY · premises record
Officer Lucia Orsi
Approved
2025-12-05
More
Lawful Development Certificate (Existing)
Show all 10 rows
Replacement of single glazed timber windows with secondary glazing timber windows to the house.
533A Chiswick High Road,Chiswick, London, W4 3AY · premises record
Applicant Mr Graham Colombotti · Officer Joedee McKenzie
Approved
2024-12-24
More
PF-Full Applications
Erection of a single storey rear infill extension to the ground floor flat, alterations to existing rear extension to the first floor flat and relocation of external staircase
GROUND & FIRST FLOOR FLATS 539 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Ms M Peters · Officer zzzJack Meacher
Approved
2023-02-16
More
PF-Full Applications
Erection of a two storey rear extension to the ground and first floor flats to enclose the relocation of the external stairs incorporating the formation of a glazed infill extension to the first floor flat
FLAT FIRST FLOOR 539 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Ms M Peters · Officer zzzJack Meacher
Refused
2022-08-25
More
PF-Full Applications
Replacement of rear timber doors with UPCV doors and double glazed panels
533A CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Mr James Smith · Officer zzzJack Meacher
Approved
2022-08-19
More
PF-Full Applications
Erection of a part subterranean single storey rear extension and subterranean rear courtyard and installation of a side window to the existing lower ground floor flat.
545A CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Francis & Olive Paul Mirandah & Banumathi · Officer Daniel Hughes
Refused
2022-08-12
More
PF-Full Applications
Works to trees in the rear garden comprising - T1 Sycamore (Acer pseudoplatanus) reduce back to previous reduction points (re-pollard) equating to roughly 4-5m reduction; T2 Sycamore (Acer pseudoplatanus) fell to ground level - poison stump; T3 Apple: Reduce back to previous reduction points, leaving furnishing growth, equating to a reduction of roughly 2-3m all round; T4 Sycamore (Acer pseudoplatanus) reduce the growth back to the previous reduction points,(re-pollard) - this reduction will equate to roughly 5-6m off the top and 2-3m laterally
529 - 531 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant Not disclosed · Officer zzzJack Meacher
Approved
2021-07-22
More
Works to Trees in Conservation Area
Works to tree in a conservation area: Eucalyptus T1-fell, the tree is outgrowing its location it has some decay in the trunk and has recently shed a large limb from the upper crown and is over shading the garden.
539 CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 3AY · premises record
Applicant scott · Officer zzzJack Meacher
Approved
2020-08-26
More
Works to Trees in Conservation Area
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 122 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 122 of 122 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
The line of the main Roman Road from Londinium to Silchester and the West. The road has been found in the roadside settlement at Brentford, but its exact route has not been demonstrated elsewhere. · reference 78072 · covers 122 of 122 premises. Groundworks may require archaeological assessment or investigation.
Archaeological Priority Area
Summary and Definition The Archaeological Priority Area follows the projected line of the London to Silchester Roman road as it travels through the Borough of Hounslow. This is one of the major Roman roads radiating out west f · reference 220942 · covers 122 of 122 premises. Groundworks may require archaeological assessment or investigation.
Archaeological Priority Area
A concentration of remarkable prehistoric finds in the area of Syon Park shows that it was a focus for both ritual and settlement purposes from the Bronze Age if not earlier. A significant Bronze Age site was destroyed when Brentford Dock was build. An · reference 77832 · covers 122 of 122 premises. Groundworks may require archaeological assessment or investigation.
Conservation Area
Wellesley Road · reference 1232 · covers 122 of 122 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Wellesley Road · reference HSLCA25 · covers 122 of 122 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 65 of 122 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 122 of 122 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
The line of the main Roman Road from Londinium to Silchester and the West. The road has been found in the roadside settlement at Brentford, but its exact route has not been demonstrated elsewhere. · reference 78072 · covers 122 of 122 premises. Groundworks may require archaeological assessment or investigation.
Archaeological Priority Area
Summary and Definition The Archaeological Priority Area follows the projected line of the London to Silchester Roman road as it travels through the Borough of Hounslow. This is one of the major Roman roads radiating out west f · reference 220942 · covers 122 of 122 premises. Groundworks may require archaeological assessment or investigation.
Show all 7 rows
Archaeological Priority Area
A concentration of remarkable prehistoric finds in the area of Syon Park shows that it was a focus for both ritual and settlement purposes from the Bronze Age if not earlier. A significant Bronze Age site was destroyed when Brentford Dock was build. An · reference 77832 · covers 122 of 122 premises. Groundworks may require archaeological assessment or investigation.
Conservation Area
Wellesley Road · reference 1232 · covers 122 of 122 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Wellesley Road · reference HSLCA25 · covers 122 of 122 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 65 of 122 premises. Some normally permitted changes may require planning permission.
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 30 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 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent44 applications and 67 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy45 EPC records; ratings C: 18, D: 19, E: 7, 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
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.
12 intent signals recorded in this postcode
Charge registered · Portfolio seller · Appeal dismissed · Beatable refusal · Lapsed consent · Price decline · EPC F/G · Long hold
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.