Planning application
254709LBC
20 The Avenue Chiswick W4 1HT
Proposal
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)
As published by the council, reference 254709LBC
Timeline
Dates from the published record
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15 Dec 2025
Received by Old Oak and Park Royal Development Corporation
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3 Aug 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Old Oak and Park Royal Development Corporation for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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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.
-
261256LBC Granted
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)
-
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.
-
261256LBC Granted
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)
-
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
-
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
Other heritage and listed buildings applications
In Old Oak and Park Royal Development Corporation
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253995LBC Refused
18 Queen Annes Grove Chiswick W4 1HN
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261603LBC Withdrawn
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261984LBC Withdrawn
1 Bedford Road Chiswick W4 1HU
Installation of a single storey timber outbuilding in the front garden (Listed building consent)
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261256LBC Granted
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)
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261921LBC Granted
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