Postcode record · Hounslow
TW7 4DW.
TW7 4DW has 43 known premises and 42 planning records — 13 approved of 20 decided (65%). 30 EPC records.
Postcode TW7 4DW · boundary not held, centred on the postcodeApprovedRefusedOther42 exact42 on the map — every match
At a glance · this postcodeHounslow profile →
43
Premises
known addresses (UPRNs)
42
Applications
20 decided
65%
Approval rate
13 approved · 7 refused
30
EPC records
ratings C 1 · D 23 · E 6
42
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?
TW7 4DW has 43 known premises and 42 planning records — 13 approved of 20 decided (65%). 30 EPC records.
Premises (18 of 43 shown)
Name
Details
UPRN 10001272061
UPRN 10096682141
UPRN 10096682142
UPRN 10096682143
UPRN 10096682144
UPRN 10096682145
UPRN 10096682146
UPRN 100021572854
UPRN 100021572855
UPRN 100021572856
UPRN 10001272061
UPRN 10096682141
UPRN 10096682142
Show all 10 rows
UPRN 10096682143
UPRN 10096682144
UPRN 10096682145
UPRN 10096682146
UPRN 100021572854
UPRN 100021572855
UPRN 100021572856
Planning
What happened?
42 planning applications across the postcode; 13 approved of 20 decided (65%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house.
8 Sidmouth Avenue, Isleworth, TW7 4DW · premises record
Applicant Aparajit Khurana · Officer Lauren Palmer
Lawful Development Certificate (Proposed)
Approved
2025-11-13
Prior Approval for the ground floor rear extension 3.50 metres deep, maximum height 3.70 metres, 2.50 metres high to the eaves.
23 Sidmouth Avenue, Isleworth,TW7 4DW · premises record
Applicant Fotis · Officer Nathan Shephard
Prior Approval Larger Home Extension
Not required
2025-08-01
Prior Approval for the ground floor rear extension 3.50 metres deep, maximum height 3.70 metres, 2.50 metres high to the eaves.
24 Sidmouth Avenue, Isleworth TW7 4DW · premises record
Applicant Estanislao · Officer Nathan Shephard
Prior Approval Larger Home Extension
Not required
2025-08-01
Certificate of lawfulness for the proposed hip to gable conversion and erection of rear roof extension with two front roof windows to the house.
33 Sidmouth Avenue, Isleworth, TW7 4DW · premises record
Applicant Wood · Officer Alejandra Nino
Lawful Development Certificate (Proposed)
Approved
2025-01-19
Erection of single storey rear extension following demolition of existing conservatory.
18 Sidmouth Avenue, Isleworth, TW7 4DW · premises record
Applicant Modh · Officer Robert Tomlinson
Householder Applications
Approved
2024-12-04
Certificate of lawfulness for the existing use of the property as six self-contained flats.
6 Sidmouth Avenue,Isleworth,Hounslow,TW7 4DW · premises record
Applicant Mr H Shawish · Officer Antara Kumar
Lawful Development Certificate (Existing)
Approved
2024-07-19
Certificate of Lawfulness of the existing use as six self-contained flats (Use Class C3)
6 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Mr H Shawish · Officer Alban Isaku
Lawful Development Certificate (Proposed)
Approved
2024-04-09
Ground floor rear extension 4.00 metres deep, maximum height 3.54 metres, 3.00 metres high to the eaves
7 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Rusby · Officer Jillian Ridler
Prior Approval Householder
Not required
2023-02-23
Erection of a single storey rear and side extension
7 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Rusby · Officer Jillian Ridler
Householder Applications
Refused
2022-05-04
Certificate of Lawfulness for proposed erection of a rear roof extension incorporating hip to gable conversion and two front roof windows; Alterations to the existing ground floor rear extension comprising of the removal of the existing opens and installation of one new window and French doors to the house
14 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Mr Saurabh Sahu · Officer Ahmed Ali
Lawful Use Certificate
Not required
2021-06-03
Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house.
8 Sidmouth Avenue, Isleworth, TW7 4DW · premises record
Applicant Aparajit Khurana · Officer Lauren Palmer
Approved
2025-11-13
More
Lawful Development Certificate (Proposed)
Prior Approval for the ground floor rear extension 3.50 metres deep, maximum height 3.70 metres, 2.50 metres high to the eaves.
23 Sidmouth Avenue, Isleworth,TW7 4DW · premises record
Applicant Fotis · Officer Nathan Shephard
Not required
2025-08-01
More
Prior Approval Larger Home Extension
Prior Approval for the ground floor rear extension 3.50 metres deep, maximum height 3.70 metres, 2.50 metres high to the eaves.
24 Sidmouth Avenue, Isleworth TW7 4DW · premises record
Applicant Estanislao · Officer Nathan Shephard
Not required
2025-08-01
More
Prior Approval Larger Home Extension
Show all 10 rows
Certificate of lawfulness for the proposed hip to gable conversion and erection of rear roof extension with two front roof windows to the house.
33 Sidmouth Avenue, Isleworth, TW7 4DW · premises record
Applicant Wood · Officer Alejandra Nino
Approved
2025-01-19
More
Lawful Development Certificate (Proposed)
Erection of single storey rear extension following demolition of existing conservatory.
18 Sidmouth Avenue, Isleworth, TW7 4DW · premises record
Applicant Modh · Officer Robert Tomlinson
Approved
2024-12-04
More
Householder Applications
Certificate of lawfulness for the existing use of the property as six self-contained flats.
6 Sidmouth Avenue,Isleworth,Hounslow,TW7 4DW · premises record
Applicant Mr H Shawish · Officer Antara Kumar
Approved
2024-07-19
More
Lawful Development Certificate (Existing)
Certificate of Lawfulness of the existing use as six self-contained flats (Use Class C3)
6 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Mr H Shawish · Officer Alban Isaku
Approved
2024-04-09
More
Lawful Development Certificate (Proposed)
Ground floor rear extension 4.00 metres deep, maximum height 3.54 metres, 3.00 metres high to the eaves
7 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Rusby · Officer Jillian Ridler
Not required
2023-02-23
More
Prior Approval Householder
Erection of a single storey rear and side extension
7 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Rusby · Officer Jillian Ridler
Refused
2022-05-04
More
Householder Applications
Certificate of Lawfulness for proposed erection of a rear roof extension incorporating hip to gable conversion and two front roof windows; Alterations to the existing ground floor rear extension comprising of the removal of the existing opens and installation of one new window and French doors to the house
14 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW · premises record
Applicant Mr Saurabh Sahu · Officer Ahmed Ali
Not required
2021-06-03
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 43 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 43 of 43 premises. Some normally permitted changes may require planning permission.
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 13 of 43 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction · reference A4D.2 · covers 43 of 43 premises. Some normally permitted changes may require planning permission.
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 13 of 43 premises. Groundworks may require archaeological assessment or investigation.
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 3 applications
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 3 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
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
Development
What could it become?
Planning precedent42 applications and 42 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy30 EPC records; ratings C: 1, D: 23, E: 6.
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.
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.