20 The Avenue Chiswick W4 1HT

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.

  Decided 3 Jul 2026 Householder
• 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)

  Decided 3 Jul 2026 Heritage and listed buildings
• 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)

  Submitted 15 Dec 2025 Heritage and listed buildings

1. 15 Dec 2025

   Received by Old Oak and Park Royal Development Corporation

2. 3 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 February 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Old Oak and Park Royal Development Corporation took a median of 55 days over the applications it decided in the last year.

This application is with Old Oak and Park Royal Development Corporation for determination, against a statutory target of eight weeks. Over the last year Old Oak and Park Royal Development Corporation decided householder applications in a median of 59 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 20 The Avenue Chiswick W4 1HT

  261255HH Submitted 23 Mar 2026 50 yards away

  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 docs
  Small domestic

• 20 The Avenue Chiswick W4 1HT

  261256LBC Submitted 23 Mar 2026 50 yards away

  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 docs
  Small domestic

• 20 The Avenue Chiswick W4 1HT

  261255HH Submitted 23 Mar 2026 50 yards away

  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 docs
  Small domestic

• 20 The Avenue Chiswick W4 1HT

  261256LBC Submitted 23 Mar 2026 50 yards away

  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 docs
  Small domestic

• 20 The Avenue Chiswick W4 1HT

  254709LBC Submitted 15 Dec 2025 50 yards away

  86% 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 13 docs
  Small domestic

• 20 The Avenue Chiswick W4 1HT

  254708HH Submitted 15 Dec 2025 50 yards away

  89% 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 13 docs
  Small domestic

• 262218HH Granted

  67 Woodfield Road Ealing W5 1SR

  Rear roof extension; installation of a rooflight on the rear roof slope; and associated internal and external alterations

  Received 2 Jun, published by the council 27 Jul 2026 Householder
• 261961HH Granted

  28 Ludlow Road Ealing W5 1NY

  Replacement of existing single glazed windows and doors with double glazed and internal amendments

  Received 12 May, published by the council 27 Jul 2026 Householder
• 261866HH Granted

  33 Carlton Road Chiswick W4 5DY

  Single-storey side and rear extension; extension to the rear roof to form a second floor above the existing outrigger (including the construction of a new wall along the side elevation to support the structure); installation of one rooflight within the existing rear roof dormer; alterations to fenestration involving the replacement of an existing rear window with a door; and Formation of a new window and door opening associated with a porch canopy in the side elevation at ground-floor level.

  Received 6 May, published by the council 27 Jul 2026 Householder
• 262779HH Refused

  14 Summit Road Northolt UB5 5HJ

  Two storey side extension; part single, part two storey rear extension (following demolition of existing single-storey rear extension); alteration of roof from hip to gable end; rear roof extension incorporating a Juliet balcony and installation of three rooflights to front roofslope

  Received 15 Jul, published by the council 20 Aug 2026 Householder
• 262778HH Refused

  406 Lady Margaret Road Southall UB1 2NL

  Part single, part two-storey side/rear extension (following demolition of existing single-storey side extension); front porch extension (following demolition of existing front porch); alteration of roof from hip to gable end; rear roof extension, and installation of two rooflights to front roofslope

  Received 14 Jul, published by the council 20 Aug 2026 Householder