Postcode record · Hounslow
W4 3DY.
W4 3DY has 31 known premises and 47 planning records — 17 approved of 18 decided (94.4%). 14 EPC records.
Postcode W4 3DY · boundary not held, centred on the postcodeApprovedRefusedOther47 exact1 approximate48 on the map — every match
At a glance · this postcodeHounslow profile →
31
Premises
known addresses (UPRNs)
47
Applications
18 decided
94.4%
Approval rate
17 approved · 1 refused
14
EPC records
ratings C 3 · D 9 · E 1 · F 1
48
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 3DY has 31 known premises and 47 planning records — 17 approved of 18 decided (94.4%). 14 EPC records.
Premises (18 of 31 shown)
Name
Details
UPRN 10023861851
UPRN 10093765468
UPRN 10093765469
UPRN 100021583888
UPRN 100021583891
UPRN 100021583893
UPRN 100021583897
UPRN 100021583898
UPRN 100021583902
UPRN 100021583920
UPRN 10023861851
UPRN 10093765468
UPRN 10093765469
Show all 10 rows
UPRN 100021583888
UPRN 100021583891
UPRN 100021583893
UPRN 100021583897
UPRN 100021583898
UPRN 100021583902
UPRN 100021583920
Planning
What happened?
47 planning applications across the postcode; 17 approved of 18 decided (94.4%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Erection of a single storey rear extension with flat roof, rear decking, access steps and balustrade to the house.
15 Elmwood Road,Chiswick,London,W4 3DY · premises record
Applicant Stephen Mepham · Officer Jacky Leung
Householder Applications
Approved
2026-01-22
Erection of ground floor rear extension and pergola with associated internal alterations.
49 Elmwood Road, Chiswick, London, W4 3DY · premises record
Applicant Brigette Sam · Officer Joedee McKenzie
Householder Applications
Approved
2025-03-21
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and a front roof window to the house.
49 Elmwood Road,Chiswick,London,W4 3DY · premises record
Applicant Brigette Sam · Officer Joedee McKenzie
Lawful Development Certificate (Proposed)
Approved
2025-03-21
Erection of a hip to gable roof extension, increase the height of chimneys, install externally rendered insulation and the formation of a rear terrace area
15 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Mr. Stephen Mepham · Officer Jacky Leung
Householder Applications
Approved
2023-08-14
Construction of a new rear terrace area, a new hip to gable roof extension and the installation of externally rendered insulation
15A ELMWOOD ROAD, CHISWICK, W4 3DY · premises record
Applicant Mr. Stephen Mepham · Officer Technical Support Officer
Householder Applications
Withdrawn
2023-07-10
Certificate of lawfulness for proposed erection of a rear roof extension, hip to gable conversion, side window, front roof windows, chimney alteration, new terrace area, side and rear window and door replacement
15 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Stephen O' Leary · Officer Jacky Leung
Lawful Use Certificate
Not required
2023-05-23
Erection of a single storey rear extension to the ground floor flat
7 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Mr. John Barratt · Officer Daniel Hughes
PF-Full Applications
Withdrawn
2023-01-03
Certificate of Lawfulness for proposed conversion of property from two flats to original use as a single dwelling house with no external alterations
15A -15B ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Not disclosed · Officer Louise Oppe
Lawful Use Certificate
Not required
2022-08-04
Certificate of lawfulness for the erection of a single storey rear extension to the house following the demolition of the existing extension and insertion of three rooflights.
11 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Ms Tarasyn Hanna · Officer zzzJack Meacher
Lawful Use Certificate
Not required
2022-02-23
Certificate of Lawfulness for the erection of a rear roof extension to an already existing roof extension.
25 ELMWOOD ROAD, CHISWICK, W4 3DY · premises record
Applicant Zaid Bunni · Officer zzzShane.Baker
Lawful Use Certificate
Not required
2022-01-18
Erection of a single storey rear extension with flat roof, rear decking, access steps and balustrade to the house.
15 Elmwood Road,Chiswick,London,W4 3DY · premises record
Applicant Stephen Mepham · Officer Jacky Leung
Approved
2026-01-22
More
Householder Applications
Erection of ground floor rear extension and pergola with associated internal alterations.
49 Elmwood Road, Chiswick, London, W4 3DY · premises record
Applicant Brigette Sam · Officer Joedee McKenzie
Approved
2025-03-21
More
Householder Applications
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and a front roof window to the house.
49 Elmwood Road,Chiswick,London,W4 3DY · premises record
Applicant Brigette Sam · Officer Joedee McKenzie
Approved
2025-03-21
More
Lawful Development Certificate (Proposed)
Show all 10 rows
Erection of a hip to gable roof extension, increase the height of chimneys, install externally rendered insulation and the formation of a rear terrace area
15 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Mr. Stephen Mepham · Officer Jacky Leung
Approved
2023-08-14
More
Householder Applications
Construction of a new rear terrace area, a new hip to gable roof extension and the installation of externally rendered insulation
15A ELMWOOD ROAD, CHISWICK, W4 3DY · premises record
Applicant Mr. Stephen Mepham · Officer Technical Support Officer
Withdrawn
2023-07-10
More
Householder Applications
Certificate of lawfulness for proposed erection of a rear roof extension, hip to gable conversion, side window, front roof windows, chimney alteration, new terrace area, side and rear window and door replacement
15 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Stephen O' Leary · Officer Jacky Leung
Not required
2023-05-23
More
Lawful Use Certificate
Erection of a single storey rear extension to the ground floor flat
7 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Mr. John Barratt · Officer Daniel Hughes
Withdrawn
2023-01-03
More
PF-Full Applications
Certificate of Lawfulness for proposed conversion of property from two flats to original use as a single dwelling house with no external alterations
15A -15B ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Not disclosed · Officer Louise Oppe
Not required
2022-08-04
More
Lawful Use Certificate
Certificate of lawfulness for the erection of a single storey rear extension to the house following the demolition of the existing extension and insertion of three rooflights.
11 ELMWOOD ROAD, CHISWICK, LONDON, W4 3DY · premises record
Applicant Ms Tarasyn Hanna · Officer zzzJack Meacher
Not required
2022-02-23
More
Lawful Use Certificate
Certificate of Lawfulness for the erection of a rear roof extension to an already existing roof extension.
25 ELMWOOD ROAD, CHISWICK, W4 3DY · premises record
Applicant Zaid Bunni · Officer zzzShane.Baker
Not required
2022-01-18
More
Lawful Use Certificate
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 31 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 31 of 31 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 31 of 31 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 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 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
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent47 applications and 48 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy14 EPC records; ratings C: 3, D: 9, E: 1, 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.
4 intent signals recorded in this postcode
Application withdrawn · 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.