Planning application
42 Cuckoo Avenue Hanwell W7 1BX
Works: Extension Loft or dormer
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Rear roof dormer extension (involving conversion of roofspace to habitable use), incorporating Juliet balcony; installation of three rooflights to front roofslope; and associated internal alterations (Application for a Lawful Development Certificate for a Proposed Development)
As published by the council, reference 261187CPL
Application record
- Reference
- 261187CPL
- Type
- Certificate of Lawfulness - Proposed
- Status
- Refused
- Decision
- Refused
- Received
- 18 Mar 2026
- Validated
- 18 Mar 2026
- Decided
- 12 May 2026
- Ward
- North Hanwell
- Decision by
- Delegated Decision
- Postcode
- W7 1BX
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 3 applications since 2026: 2 approved, 1 refused.
-
262406HH Granted
42 Cuckoo Avenue Hanwell W7 1BX
Rear roof dormer extension (following removal of solar panels) (involving conversion of roofspace to habitable use); installation of two rooflights to front roofslope
-
261351HH Granted
42 Cuckoo Avenue Hanwell W7 1BX
Single storey rear extension and installation of sliding doors; single storey front porch extension; internal and external alterations
Timeline
Dates from the published record
-
18 Mar 2026
Received by Old Oak and Park Royal Development Corporation
-
12 May 2026
Decision issued: Refused
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Rkitek Design Ltd Agent, a design practice registered in Northolt
Active · incorporated 2019 · Northolt
28 applications on PlanIndex · across 6 councils · 74% 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
8 documents on file for this application
- OFFICERS REPORT
- DECISION NOTICE
- APPLICATION FORM REDACTED
- LOCATION PLAN
- EXISTING FLOOR PLANS
- EXISTING PLANNING E
- PROPOSED PLANNING E
- PROPOSED FLOOR PLANS
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this refusal means
Old Oak and Park Royal Development Corporation refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
42 Cuckoo Avenue Hanwell W7 1BX
Rear roof dormer extension (involving conversion of roofspace to habitable use), incorporating Juliet balcony; installation of three rooflights to front roofslope; and associated internal alterations (Application for a Lawful Development Certificate for a Proposed Development)
Refused Lawful development Extension Loft or dormer 8 docs -
42 Cuckoo Avenue Hanwell W7 1BX
Single storey rear extension and installation of sliding doors; single storey front porch extension; internal and external alterations
Granted Householder Extension 15 docsSmall domestic -
42 Cuckoo Avenue Hanwell W7 1BX
Single storey rear extension and installation of sliding doors; single storey front porch extension; internal and external alterations
Granted Householder Extension 15 docsSmall domestic -
42 Cuckoo Avenue Hanwell W7 1BX
Rear roof dormer extension (following removal of solar panels) (involving conversion of roofspace to habitable use); installation of two rooflights to front roofslope
Granted Householder Extension Loft or dormer 16 docsDomestic -
42 Cuckoo Avenue Hanwell W7 1BX
Rear roof dormer extension (following removal of solar panels) (involving conversion of roofspace to habitable use); installation of two rooflights to front roofslope
Granted Extension Loft or dormer 16 docs -
Small domestic
Other lawful development applications
In Old Oak and Park Royal Development Corporation
-
263142CPL Granted
42 Gloucester Road Acton W3 8PD
Roof extension to rear (main) roof slope; part rear roof extension to rear outrigger roof slope and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
-
263690CPL Awaiting decision
133 Trinity Road Southall UB1 1ES
Rear roof extension, and installation of three roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
-
262683CPE Granted
1 Speldhurst Road Chiswick W4 1BX
Continuous use of conversion of the roof space to provide additional habitable accommodation, installation of rooflights to the front roof slope and a rear dormer and construction of a single-storey rear extension. External materials to match the existing dwelling (Lawful Development Certificate for an Existing Development)
-
254066CPE Refused
37 Robin Hood Way Greenford UB6 7QN
Use of ground floor flat and first/second floor flat (Use Class C3) as 2 x House in Multiple Occupation (Use Class C4) (Certificate of Lawfulness for an Existing Use)
-
262883CPL Granted
90 Church Road Hanwell W7 3BE
Rear roof extension (following removal of chimney); installation of two rooflight to front roofslope (Lawful Development Certificate for a Proposed Development)