Postcode record · Hounslow
W4 1LL.
W4 1LL has 24 known premises and 32 planning records — 27 approved of 27 decided (100%). 5 EPC records.
Postcode W4 1LL · boundary not held, centred on the postcodeApprovedRefusedOther32 exact7 approximate39 on the map — every match
At a glance · this postcodeHounslow profile →
24
Premises
known addresses (UPRNs)
32
Applications
27 decided
100%
Approval rate
27 approved · 0 refused
5
EPC records
ratings C 1 · D 4
39
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 1LL has 24 known premises and 32 planning records — 27 approved of 27 decided (100%). 5 EPC records.
Premises (18 of 24 shown)
Name
Details
UPRN 10091596515
UPRN 100023490319
UPRN 200002114934
UPRN 200002114935
UPRN 200002818798
UPRN 200002818799
UPRN 200002818800
UPRN 200002818982
UPRN 200003981121
UPRN 200003981122
UPRN 10091596515
UPRN 100023490319
UPRN 200002114934
Show all 10 rows
UPRN 200002114935
UPRN 200002818798
UPRN 200002818799
UPRN 200002818800
UPRN 200002818982
UPRN 200003981121
UPRN 200003981122
Planning
What happened?
32 planning applications across the postcode; 27 approved of 27 decided (100%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Installation of an air conditioning condenser unit to the rear of the existing single storey rear outbuilding located in the house's rear garden.
3A Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mr Mike Smith · Officer Daniel Hughes
Householder Applications
Approved
2026-01-12
Listed Building Consent for the installation of one air conditioning condenser unit to the rear of the house.
3A Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mr Mike Smith · Officer Daniel Hughes
Listed Building Consent to (alter/extend)
Approved
2026-01-12
Installation of one air-conditioning condenser unit located externally, adjacent to existing single storey rear outbuilding.
3A Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mr Mike Smith · Officer Catherine Gordon
Listed Building Consent to (alter/extend)
Withdrawn
2026-01-12
Works to three trees in a Conservation Area: Ash (T1) - Fell to ground level. Ash (T2) - Fell to ground level. Ash (T3) - Fell to ground level.
7 Bath Road,Chiswick,London,Hounslow,W4 1LL · premises record
Applicant Alice Slade · Officer Daniel Hughes
Works to Trees in Conservation Area
No objection
2025-07-09
Erection of a first floor rear replacement flat roof terrace with painted timber balustrade to the house. Following the demolition of existing flat roof terrace structure.
1 Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mrs R Jones · Officer Jacky Leung
Householder Applications
Approved
2025-05-23
Listed building consent for the erection of a first floor rear replacement flat roof terrace with painted timber balustrade to the house. Following the demolition of existing flat roof terrace structure.
1 Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mrs R Jones · Officer Jacky Leung
Listed Building Consent to (alter/extend)
Approved
2025-05-23
Works to TPO trees within a Conservation Area: Ash (T1) - Re-pollard crown to previous reduction points by three to four metres. Hornbeam (T2) - Reduce crown height by 2.5 to three metres, reduce diameter width by four metres to re-balance shape, thin canopy by 10% and remove major deadwood. Sycamore (T3) - Reduce crown height by 2.5 to three metres, reduce diameter width by five metres to balance shape, thin canopy by 10% and remove major deadwood. Ash (T4) - Reduce height by 2.5 to three metres, reduce diameter width by four metres, thin canopy by 10% and remove major deadwood. Sycamore (T5) - Reduce crown height by 2.5 to three metres, reduce diameter width by five metres to balance shape, thin canopy by 10% and remove major deadwood. Sycamore (T6) - Reduce height by 2.5 to three metres, reduce diameter width by five metres to re-balance shape, thin canopy by 10% and remove major deadwood. Sycamore (T7) - Reduce height by three metres, reduce diameter width by four metres to re-balance shape, thin canopy by 10%, remove major deadwood and prune one limb overhanging No. 5 Bath Road by three metres. Ash (T8) - Fell to ground level and remove stump.
3 Bath Road,Chiswick,W4 1LL · premises record
Applicant Smith · Officer Daniel Hughes
Works to a Tree covered by a Tree Preservation Order
Approved
2024-12-23
Reversion of the existing single storey rear outbuilding from office to residential use, the erection of a single storey rear and side infill extension to the house to amalgamate with the existing rear outbuilding replacing the existing utility room projection, internal and external alterations to the existing outbuilding, and the replacement of the house's ground floor rear outrigger side doors and window. (Listed building consent P/2024/1077)
3 BATH ROAD, CHISWICK, LONDON, W4 1LL · premises record
Applicant Mr and Mr Michael Smith and Vanessa Mooney · Officer Daniel Hughes
Householder Applications
Approved
2024-04-02
Listed building consent for the reversion of the existing single storey rear outbuilding from office to residential use, the erection of a single storey rear and side infill extension to the house to amalgamate with the existing rear outbuilding replacing the existing utility room projection, internal and external alterations to the existing outbuilding, and the replacement of the house's ground floor rear outrigger side doors and window.
3 BATH ROAD, CHISWICK, LONDON, W4 1LL · premises record
Applicant Mr and Mr Michael Smith and Vanessa Mooney · Officer Daniel Hughes
Listed Building Consent to (alter/extend)
Approved
2024-04-02
Work to a tree within a Conservation Area: Sycamore (T1) - Reduce branches overhanging the shared boundary with Nos. 3 and 5 Rupert Road by two metres and remove one large and five small branches.
3 BATH ROAD, CHISWICK, W4 1LL · premises record
Applicant Admin Manager · Officer Daniel Hughes
Works to Trees in Conservation Area
Withdrawn
2023-07-03
Installation of an air conditioning condenser unit to the rear of the existing single storey rear outbuilding located in the house's rear garden.
3A Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mr Mike Smith · Officer Daniel Hughes
Approved
2026-01-12
More
Householder Applications
Listed Building Consent for the installation of one air conditioning condenser unit to the rear of the house.
3A Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mr Mike Smith · Officer Daniel Hughes
Approved
2026-01-12
More
Listed Building Consent to (alter/extend)
Installation of one air-conditioning condenser unit located externally, adjacent to existing single storey rear outbuilding.
3A Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mr Mike Smith · Officer Catherine Gordon
Withdrawn
2026-01-12
More
Listed Building Consent to (alter/extend)
Show all 10 rows
Works to three trees in a Conservation Area: Ash (T1) - Fell to ground level. Ash (T2) - Fell to ground level. Ash (T3) - Fell to ground level.
7 Bath Road,Chiswick,London,Hounslow,W4 1LL · premises record
Applicant Alice Slade · Officer Daniel Hughes
No objection
2025-07-09
More
Works to Trees in Conservation Area
Erection of a first floor rear replacement flat roof terrace with painted timber balustrade to the house. Following the demolition of existing flat roof terrace structure.
1 Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mrs R Jones · Officer Jacky Leung
Approved
2025-05-23
More
Householder Applications
Listed building consent for the erection of a first floor rear replacement flat roof terrace with painted timber balustrade to the house. Following the demolition of existing flat roof terrace structure.
1 Bath Road, Chiswick, London, W4 1LL · premises record
Applicant Mrs R Jones · Officer Jacky Leung
Approved
2025-05-23
More
Listed Building Consent to (alter/extend)
Works to TPO trees within a Conservation Area: Ash (T1) - Re-pollard crown to previous reduction points by three to four metres. Hornbeam (T2) - Reduce crown height by 2.5 to three metres, reduce diameter width by four metres to re-balance shape, thin canopy by 10% and remove major deadwood. Sycamore (T3) - Reduce crown height by 2.5 to three metres, reduce diameter width by five metres to balance shape, thin canopy by 10% and remove major deadwood. Ash (T4) - Reduce height by 2.5 to three metres, reduce diameter width by four metres, thin canopy by 10% and remove major deadwood. Sycamore (T5) - Reduce crown height by 2.5 to three metres, reduce diameter width by five metres to balance shape, thin canopy by 10% and remove major deadwood. Sycamore (T6) - Reduce height by 2.5 to three metres, reduce diameter width by five metres to re-balance shape, thin canopy by 10% and remove major deadwood. Sycamore (T7) - Reduce height by three metres, reduce diameter width by four metres to re-balance shape, thin canopy by 10%, remove major deadwood and prune one limb overhanging No. 5 Bath Road by three metres. Ash (T8) - Fell to ground level and remove stump.
3 Bath Road,Chiswick,W4 1LL · premises record
Applicant Smith · Officer Daniel Hughes
Approved
2024-12-23
More
Works to a Tree covered by a Tree Preservation Order
Reversion of the existing single storey rear outbuilding from office to residential use, the erection of a single storey rear and side infill extension to the house to amalgamate with the existing rear outbuilding replacing the existing utility room projection, internal and external alterations to the existing outbuilding, and the replacement of the house's ground floor rear outrigger side doors and window. (Listed building consent P/2024/1077)
3 BATH ROAD, CHISWICK, LONDON, W4 1LL · premises record
Applicant Mr and Mr Michael Smith and Vanessa Mooney · Officer Daniel Hughes
Approved
2024-04-02
More
Householder Applications
Listed building consent for the reversion of the existing single storey rear outbuilding from office to residential use, the erection of a single storey rear and side infill extension to the house to amalgamate with the existing rear outbuilding replacing the existing utility room projection, internal and external alterations to the existing outbuilding, and the replacement of the house's ground floor rear outrigger side doors and window.
3 BATH ROAD, CHISWICK, LONDON, W4 1LL · premises record
Applicant Mr and Mr Michael Smith and Vanessa Mooney · Officer Daniel Hughes
Approved
2024-04-02
More
Listed Building Consent to (alter/extend)
Work to a tree within a Conservation Area: Sycamore (T1) - Reduce branches overhanging the shared boundary with Nos. 3 and 5 Rupert Road by two metres and remove one large and five small branches.
3 BATH ROAD, CHISWICK, W4 1LL · premises record
Applicant Admin Manager · Officer Daniel Hughes
Withdrawn
2023-07-03
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 24 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 24 of 24 premises. Some normally permitted changes may require planning permission.
Conservation Area
Bedford Park · reference 1205 · covers 22 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Bedford Park (article 4) · reference HSLCA04 · covers 22 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
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 22 of 24 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 22 of 24 premises. Groundworks may require archaeological assessment or investigation.
Conservation Area
Turnham Green · reference 1225 · covers 2 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Turnham Green · reference HSLCA08 · covers 2 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction · reference A4D.2 · covers 24 of 24 premises. Some normally permitted changes may require planning permission.
Conservation Area
Bedford Park · reference 1205 · covers 22 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Bedford Park (article 4) · reference HSLCA04 · covers 22 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Show all 7 rows
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 22 of 24 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 22 of 24 premises. Groundworks may require archaeological assessment or investigation.
Conservation Area
Turnham Green · reference 1225 · covers 2 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Turnham Green · reference HSLCA08 · covers 2 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
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 4 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 4 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 precedent32 applications and 39 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy5 EPC records; ratings C: 1, D: 4.
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.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.