Postcode record · Hounslow
W4 3LT.
W4 3LT has 34 known premises and 79 planning records — 34 approved of 47 decided (72.3%). 23 EPC records.
Postcode W4 3LT · boundary not held, centred on the postcodeApprovedRefusedOther79 exact1 approximate80 on the map — every match
At a glance · this postcodeHounslow profile →
34
Premises
known addresses (UPRNs)
79
Applications
47 decided
72.3%
Approval rate
34 approved · 13 refused
23
EPC records
ratings C 4 · D 11 · E 7 · F 1
80
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 3LT has 34 known premises and 79 planning records — 34 approved of 47 decided (72.3%). 23 EPC records.
Premises (18 of 34 shown)
Name
Details
UPRN 10091693830
UPRN 100021591838
UPRN 100021591839
UPRN 100021591855
UPRN 100023489229
UPRN 200002819611
UPRN 200002819612
UPRN 200002819613
UPRN 200002819614
UPRN 200002819615
UPRN 10091693830
UPRN 100021591838
UPRN 100021591839
Show all 10 rows
UPRN 100021591855
UPRN 100023489229
UPRN 200002819611
UPRN 200002819612
UPRN 200002819613
UPRN 200002819614
UPRN 200002819615
Planning
What happened?
79 planning applications across the postcode; 34 approved of 47 decided (72.3%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Retrospective conversion of the existing residential house C3 to a House in Multiple Occupation C4 with associated cycle and refuse storage
14 Whitehall Gardens, Chiswick, London, W4 3LT · premises record
Applicant Ms Chitra Chandran · Officer Louise Oppe
PF-Full Applications
Refused
2026-02-23
Erection of a single storey rear extension at both 19 and 21. Erection of a rear roof extension with two front roof windows and Juliette balcony, and a second floor rear extension at 21.
19 and 21 Whitehall Gardens, Chiswick, London, W4 3LT · premises record
Applicant Susan Ferry · Officer Louise Oppe
Householder Applications
Approved
2025-10-13
Erection of a single storey rear and side extension to the house.
1 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Natalie Sully · Officer Kieran Edmonds
Householder Applications
Approved
2024-04-10
Certificate of Lawfulness for the proposed erection of a rear roof extension with two front roof windows and part second floor rear extension to the house.
1 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Ms Natalie Sully · Officer Kieran Edmonds
Lawful Development Certificate (Proposed)
Approved
2024-04-10
Certificate of Lawfulness for the proposed erection of rear roof extension and outrigger roof extension to the house.
17 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Ms Alice Grant · Officer Kieran Edmonds
Lawful Use Certificate
Not required
2024-04-04
Erection of a single storey side and rear extension following the demolition of the existing extensions
17 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Ms Alice Grant · Officer Kieran Edmonds
Householder Applications
Approved
2024-04-04
Works to Eucalyptus tree in rear garden in conservation area. Reduce by 2.5 metres in height and 2.5 metres in width.
22 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Debbie Sirkett · Officer Louise Oppe
5 Day tree notification
Withdrawn
2023-11-02
FRONT GARDEN T1 Olive. Fell to ground level and remove all arisings.
26 WHITEHALL GARDENS, CHISWICK, LONDON, W4 3LT · premises record
Applicant Ms Gillian Bampton · Officer Jacky Leung
Works to Trees in Conservation Area
Withdrawn
2022-12-09
Erection of a part single part two storey rear extension with roof lantern to the house
18 WHITEHALL GARDENS, CHISWICK, LONDON, W4 3LT · premises record
Applicant Holmes · Officer zzzAbigail Mason-Thompson
Householder Applications
Approved
2022-01-04
Ground floor rear extension 6 metres deep, maximum height of 3 metres, 3 metres high to the eaves
18 WHITEHALL GARDENS, CHISWICK, LONDON, W4 3LT · premises record
Applicant Holmes · Officer zzzShane.Baker
Prior Approval Householder
Not required
2021-11-26
Retrospective conversion of the existing residential house C3 to a House in Multiple Occupation C4 with associated cycle and refuse storage
14 Whitehall Gardens, Chiswick, London, W4 3LT · premises record
Applicant Ms Chitra Chandran · Officer Louise Oppe
Refused
2026-02-23
More
PF-Full Applications
Erection of a single storey rear extension at both 19 and 21. Erection of a rear roof extension with two front roof windows and Juliette balcony, and a second floor rear extension at 21.
19 and 21 Whitehall Gardens, Chiswick, London, W4 3LT · premises record
Applicant Susan Ferry · Officer Louise Oppe
Approved
2025-10-13
More
Householder Applications
Erection of a single storey rear and side extension to the house.
1 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Natalie Sully · Officer Kieran Edmonds
Approved
2024-04-10
More
Householder Applications
Show all 10 rows
Certificate of Lawfulness for the proposed erection of a rear roof extension with two front roof windows and part second floor rear extension to the house.
1 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Ms Natalie Sully · Officer Kieran Edmonds
Approved
2024-04-10
More
Lawful Development Certificate (Proposed)
Certificate of Lawfulness for the proposed erection of rear roof extension and outrigger roof extension to the house.
17 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Ms Alice Grant · Officer Kieran Edmonds
Not required
2024-04-04
More
Lawful Use Certificate
Erection of a single storey side and rear extension following the demolition of the existing extensions
17 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Ms Alice Grant · Officer Kieran Edmonds
Approved
2024-04-04
More
Householder Applications
Works to Eucalyptus tree in rear garden in conservation area. Reduce by 2.5 metres in height and 2.5 metres in width.
22 WHITEHALL GARDENS, CHISWICK, W4 3LT · premises record
Applicant Debbie Sirkett · Officer Louise Oppe
Withdrawn
2023-11-02
More
5 Day tree notification
FRONT GARDEN T1 Olive. Fell to ground level and remove all arisings.
26 WHITEHALL GARDENS, CHISWICK, LONDON, W4 3LT · premises record
Applicant Ms Gillian Bampton · Officer Jacky Leung
Withdrawn
2022-12-09
More
Works to Trees in Conservation Area
Erection of a part single part two storey rear extension with roof lantern to the house
18 WHITEHALL GARDENS, CHISWICK, LONDON, W4 3LT · premises record
Applicant Holmes · Officer zzzAbigail Mason-Thompson
Approved
2022-01-04
More
Householder Applications
Ground floor rear extension 6 metres deep, maximum height of 3 metres, 3 metres high to the eaves
18 WHITEHALL GARDENS, CHISWICK, LONDON, W4 3LT · premises record
Applicant Holmes · Officer zzzShane.Baker
Not required
2021-11-26
More
Prior Approval Householder
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 34 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 34 of 34 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 34 of 34 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 precedent79 applications and 80 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy23 EPC records; ratings C: 4, D: 11, 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.
6 intent signals recorded in this postcode
Repeat sale · EPC F/G · Long hold · HMO licensed
Subscribe to see the signals →Thinking about a project here?
How long would a planning application take here? →
Hounslow's real decision times and approval rates, measured from the record — not the statutory target.
Why do applications around here get refused? →
The most common refusal grounds in Hounslow, by year and scheme type — the risks to know before applying.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.