Planning application
20 The Avenue Chiswick W4 1HT
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Construction of a single storey rear extension to the existing rear extension including the enlargement of the existing roof terrace above at first floor level, internal and external alterations and general refurbishment of the house. Alterations to the existing services and the installation of an air conditioning condenser unit in the rear garden (Listed Building Consent)
As published by the council, reference 261256LBC
Application record
- Reference
- 261256LBC
- Type
- Listed Building Consent
- Status
- Granted with Conditions
- Decision
- Granted As published: Granted with Conditions
- Received
- 23 Mar 2026
- Validated
- 23 Mar 2026
- Decided
- 3 Jul 2026
- Ward
- Southfield
- Decision by
- Delegated Decision
- Postcode
- W4 1HT
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 4 applications since 2025: 2 approved, 0 refused.
-
261255HH Granted
20 The Avenue Chiswick W4 1HT
Single storey rear extension to the existing rear extension including the enlargement of the existing roof terrace above at first floor level, internal and external alterations and general refurbishment of the house. Alterations to the existing services and the installation of an air conditioning condenser unit in the rear garden.
-
254708HH Awaiting decision
20 The Avenue Chiswick W4 1HT
Construction of single storey garden outbuilding with basement level; and replacement boundary treatment facing Queen Anne's Gardens and the installation of an air conditioning condenser unit
-
254709LBC Awaiting decision
20 The Avenue Chiswick W4 1HT
Construction of single storey garden outbuilding with basement level; and replacement boundary treatment facing Queen Anne's Gardens and the installation of an air conditioning condenser unit (Listed Building Consent)
Timeline
Dates from the published record
-
23 Mar 2026
Received by Old Oak and Park Royal Development Corporation
-
3 Jul 2026
Decision issued: Granted with Conditions
-
3 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
- Application: 261255HH (Granted with Conditions)
Who's behind it
Company information only, from the register and Companies House
Alice Poole Architects Agent, an architecture practice
28 applications on PlanIndex · across 3 councils · 78% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
27 documents on file for this application
- OFFICERS REPORT
- DECISION NOTICE
- PROPOSED FIRST, SECOND, LOFT FLOORS
- FRONT AND REAR ELEVATIONS
- PROPOSED ROOF PLAN
- LAMP POST
- CONSERVATION SITE NOTICE
- APPLICATIONFORMREDACTED
- LOCATIONPLAN
- A787-L1 - LOCATION PLAN
- A787-PM02 - EXISTING FIRST FLOOR SECOND FLOOR AND LOFT FLOOR PLANS
- A787-PM03 - EXISTING FRONT AND REAR ELEVATIONS
- A787-PM04 - EXISTING SIDE ELEVATION
- A787-PM05 - EXISTING SECTIONS A-A AND B-B
- A787-PM06 - EXISTING ROOF PLAN
- A787-PM07 - SHAWS FIRST DESIGN FOR A SEMI-DETACHED HOUSE
- A787-PL02 - PROPOSED FIRST FLOOR SECOND FLOOR AND LOFT FLOOR PLANS
- A787-PL03 - PROPOSED FRONT AND REAR ELEVATIONS
- A787-PL04 - PROPOSED SIDE ELEVATION
- A787-PL05 - PROPOSED SECTIONS A-A AND B-B
- A787-F01 - PROPOSED ROOF PLAN AND FIRE SAFETY PLAN
- A787-PL20 - JOINERY DETAILS WITH SLIMLINE DOUBLE GLAZING - CASEMENT WINDOW
- A787-PL21 - VELUX CONSERVATION ROOFLIGHT DETAILS
- A787-PM01 - EXISTING GROUND FLOOR AND SITE PLAN
- A787-PL01 - PROPOSED GROUND FLOOR AND SITE PLAN
- A787 - HERITAGE AND DESIGN AND ACCESS STATEMENT
- A787 - PLANT NOISE ASSESSMENT REF 3196-AF-00001-01
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Old Oak and Park Royal Development Corporation granted permission on 3 July 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
20 The Avenue Chiswick W4 1HT
Single storey rear extension to the existing rear extension including the enlargement of the existing roof terrace above at first floor level, internal and external alterations and general refurbishment of the house. Alterations to the existing services and the installation of an air conditioning condenser unit in the rear garden.
Granted Householder Extension 24 docsSmall domestic -
20 The Avenue Chiswick W4 1HT
Single storey rear extension to the existing rear extension including the enlargement of the existing roof terrace above at first floor level, internal and external alterations and general refurbishment of the house. Alterations to the existing services and the installation of an air conditioning condenser unit in the rear garden.
Granted Householder Extension 24 docsSmall domestic -
20 The Avenue Chiswick W4 1HT
Construction of a single storey rear extension to the existing rear extension including the enlargement of the existing roof terrace above at first floor level, internal and external alterations and general refurbishment of the house. Alterations to the existing services and the installation of an air conditioning condenser unit in the rear garden (Listed Building Consent)
Granted Heritage and listed buildings Extension 27 docsSmall domestic -
20 The Avenue Chiswick W4 1HT
87% historically approved · decision due ~9 Feb
Construction of single storey garden outbuilding with basement level; and replacement boundary treatment facing Queen Anne's Gardens and the installation of an air conditioning condenser unit
Awaiting decision Householder 22 docsSmall domestic -
20 The Avenue Chiswick W4 1HT
88% historically approved · decision due ~9 Feb
Construction of single storey garden outbuilding with basement level; and replacement boundary treatment facing Queen Anne's Gardens and the installation of an air conditioning condenser unit (Listed Building Consent)
Awaiting decision Heritage and listed buildings 21 docsSmall domestic -
20 The Avenue Chiswick W4 1HT
88% historically approved · decision due ~9 Feb
Construction of single storey garden outbuilding with basement level; and replacement boundary treatment facing Queen Anne's Gardens and the installation of an air conditioning condenser unit
Awaiting decision Householder 22 docsSmall domestic
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