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18 Alwyn Avenue Chiswick London W4 4PB

P/2000/1099Full ApplicationsPermitted
Full

Proposal

Erection of single storey rear extension to dwellinghouse

Received
19 May 2000
Decided
4 July 2000 · Approved
Decision level
Delegated (officer decision)
Ward
Decode not available for 20
Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

  1. Received19 May
  2. Validated19 May
  3. Consult.
  4. Target
  5. Decided4 Jul

Decided in 46 days (council typically 56)

8 weeks typical decision time in Hounslow76% of full applications approved

This is a full planning application for a single storey rear extension at 18 Alwyn Avenue Chiswick London W4 4PB. Hounslow has handled 2,388 applications of this type and approves 77% of them, typically deciding them in 58 days. This one was decided in 46 days, 12 days quicker than Hounslow's median. The site is in the Turnham Green conservation area. There are no previous applications recorded at this address. We hold 6,560 applications in total for the W4 postcode area.

Application Details

Reference
P/2000/1099
Address
18 Alwyn Avenue Chiswick London W4 4PB
Postcode
W4 4PB
Local Authority
Hounslow
Application Type
Full Applications
Decision Status
Permitted
Current Status
Approved
Ward
Decode not available for 20

Applicant & Agent

Applicant Address
18 Alwyn Avenue Chiswick London W4 4PB
Agent Address
18 Alwyn Avenue Chiswick London W4 4PB

Planning Application Dates

Date Received
19 May 2000
Date Decided
4 July 2000
Date Validated
19 May 2000
Date Submitted
19 May 2000
Permission Expires
3 July 2005

Planning Decision

Decision
Approved
Decided By
Delegated

Publicity

Appeal

Additional Information

Coordinates
51.489906, -0.264599
Enriching application data
2/3
Council recordsAppealsFlood risk

Source: Hounslow

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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Planning constraints

Designations that overlap or adjoin the site outline.

  • Flood zone 3: High probability (rivers and sea)
  • Conservation area: Turnham Green
  • Article 4 direction: Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (21)

flood storage areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

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