Planning Atlas
Planning Atlas›Hounslow›…Chiswick Homefields ward›W4 1SN
AtlasHounslowChiswick HomefieldsW4 1SN
Postcode record · Hounslow

W4 1SN.

W4 1SN has 44 known premises and 58 planning records — 30 approved of 40 decided (75%). 34 EPC records.

Postcode W4 1SN · boundary not held, centred on the postcodeApprovedRefusedOther58 exact58 on the map — every match
At a glance · this postcodeHounslow profile →
44
Premises
known addresses (UPRNs)
58
Applications
40 decided
75%
Approval rate
30 approved · 10 refused
34
EPC records
ratings C 5 · D 22 · E 7
58
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 1SN has 44 known premises and 58 planning records — 30 approved of 40 decided (75%). 34 EPC records.

Premises (18 of 44 shown)

Name
Details
UPRN 10014074114
UPRN 100021582028
UPRN 100021582029
UPRN 100021582030
UPRN 100021582031
UPRN 100021582033
UPRN 100021582034
UPRN 100021582035
UPRN 100021582036
UPRN 100021582037
UPRN 10014074114
UPRN 100021582028
UPRN 100021582029
Show all 10 rows
UPRN 100021582030
UPRN 100021582031
UPRN 100021582033
UPRN 100021582034
UPRN 100021582035
UPRN 100021582036
UPRN 100021582037
Planning

What happened?

58 planning applications across the postcode; 30 approved of 40 decided (75%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Enlargement of existing single storey rear extension to the house.
15 Cleveland Avenue,Chiswick,London,W4 1SN · premises record
Applicant Mr Benjamin Tubbs · Officer Lucia Orsi
Householder Applications
Registered
2026-04-15
Certificate of lawfulness proposed for the erection of a rear roof extension with three front and rear roof windows to the house and removal of a chimney.
18 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Sigmund kyrdalen · Officer Lucia Orsi
Lawful Development Certificate (Proposed)
Approved
2026-02-13
Erection of a single storey rear extension to the house.
18 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Sigmund Krydalen · Officer Lucia Orsi
Householder Applications
Approved
2026-02-11
Certificate of Lawfulness for amalgamation of two flats into a house.
1 Cleveland Avenue,Chiswick,London,Hounslow,W4 1SN · premises record
Applicant christopher Ttouli · Officer Daniel Hughes
Lawful Development Certificate (Proposed)
Approved
2025-08-01
Erection of a single storey rear extension with a two levelled flat roof and parapet to the house. Erection of replacement boundary walls around rear garden
5 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Mark Beckett · Officer Louise Oppe
Householder Applications
Approved
2025-04-07
Erection of a single storey rear extension and rear roof dormer extension to the house, and conversion of the house's loft to habitable space.
16 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Ahmed Jamel · Officer Daniel Hughes
Householder Applications
Approved
2024-12-20
Erection of a single storey rear extension and air conditioning unit to rear garden.
8 CLEVELAND AVENUE, CHISWICK, W4 1SN · premises record
Applicant Mr Jivraj · Officer Daniel Hughes
Householder Applications
Approved
2023-10-18
Erection of a single storey rear infill and a rear roof extension with three front roof windows incorporating the installation of an AC unit to the second floor roof
23 CLEVELAND AVENUE, CHISWICK, LONDON, W4 1SN · premises record
Applicant Mr Giles Parry · Officer Jacky Leung
Householder Applications
Approved
2023-08-29
Certificate of Lawfulness for the proposed erection of a replacement single storey rear extension and rear roof dormer extension and installation of two front roof lights to the house.
8 CLEVELAND AVENUE, CHISWICK, W4 1SN · premises record
Applicant Mr Jivraj · Officer Daniel Hughes
Lawful Use Certificate
Not required
2023-06-29
Erection of a single storey rear extension, rear infill extension and the installation of two additional front roof windows and new rear windows to the existing rear roof extension.
25 CLEVELAND AVENUE, CHISWICK, LONDON, W4 1SN · premises record
Householder Applications
Approved
2023-05-15
Enlargement of existing single storey rear extension to the house.
15 Cleveland Avenue,Chiswick,London,W4 1SN · premises record
Applicant Mr Benjamin Tubbs · Officer Lucia Orsi
Registered
2026-04-15
More
Householder Applications
Certificate of lawfulness proposed for the erection of a rear roof extension with three front and rear roof windows to the house and removal of a chimney.
18 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Sigmund kyrdalen · Officer Lucia Orsi
Approved
2026-02-13
More
Lawful Development Certificate (Proposed)
Erection of a single storey rear extension to the house.
18 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Sigmund Krydalen · Officer Lucia Orsi
Approved
2026-02-11
More
Householder Applications
Show all 10 rows
Certificate of Lawfulness for amalgamation of two flats into a house.
1 Cleveland Avenue,Chiswick,London,Hounslow,W4 1SN · premises record
Applicant christopher Ttouli · Officer Daniel Hughes
Approved
2025-08-01
More
Lawful Development Certificate (Proposed)
Erection of a single storey rear extension with a two levelled flat roof and parapet to the house. Erection of replacement boundary walls around rear garden
5 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Mark Beckett · Officer Louise Oppe
Approved
2025-04-07
More
Householder Applications
Erection of a single storey rear extension and rear roof dormer extension to the house, and conversion of the house's loft to habitable space.
16 Cleveland Avenue, Chiswick, London, W4 1SN · premises record
Applicant Mr Ahmed Jamel · Officer Daniel Hughes
Approved
2024-12-20
More
Householder Applications
Erection of a single storey rear extension and air conditioning unit to rear garden.
8 CLEVELAND AVENUE, CHISWICK, W4 1SN · premises record
Applicant Mr Jivraj · Officer Daniel Hughes
Approved
2023-10-18
More
Householder Applications
Erection of a single storey rear infill and a rear roof extension with three front roof windows incorporating the installation of an AC unit to the second floor roof
23 CLEVELAND AVENUE, CHISWICK, LONDON, W4 1SN · premises record
Applicant Mr Giles Parry · Officer Jacky Leung
Approved
2023-08-29
More
Householder Applications
Certificate of Lawfulness for the proposed erection of a replacement single storey rear extension and rear roof dormer extension and installation of two front roof lights to the house.
8 CLEVELAND AVENUE, CHISWICK, W4 1SN · premises record
Applicant Mr Jivraj · Officer Daniel Hughes
Not required
2023-06-29
More
Lawful Use Certificate
Erection of a single storey rear extension, rear infill extension and the installation of two additional front roof windows and new rear windows to the existing rear roof extension.
25 CLEVELAND AVENUE, CHISWICK, LONDON, W4 1SN · premises record
Approved
2023-05-15
More
Householder 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 44 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 44 of 44 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 44 of 44 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 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 precedent58 applications and 58 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy34 EPC records; ratings C: 5, D: 22, E: 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.

3 intent signals recorded in this postcode
Repeat sale · 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.
W4 1SN, Hounslow: Planning and Property History | Planning Atlas