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Planning application

214273CPL

17 Manton Avenue Hanwell London W7 2DY

Granted Old Oak and Park Royal Development Corporation Certificate of Lawfulness - Proposed

Proposal

Rear roof extension and insertion of two roof lights to front roof slope (Lawful Development Certificate for a Proposed Development)

As published by the council, reference 214273CPL

Timeline

Dates from the published record

  1. 18 Jun 2021

    Received by Old Oak and Park Royal Development Corporation

  2. 10 Aug 2021

    Decision issued: Permitted Development

  3. 3 Aug 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 262390HH Awaiting decision

    111 Elthorne Avenue Hanwell W7 2JZ

    Single storey rear infill extension

    15 Jun 2026 47m away Householder
  • 262390HH Awaiting decision

    111 Elthorne Avenue Hanwell W7 2JZ

    Single storey rear infill extension

    15 Jun 2026 47m away Householder
  • 261446FUL Granted

    First Floor Flat 127 Elthorne Avenue Hanwell W7 2JZ

    Roof extension to rear (main) roof slope; roof extension to rear (outrigger) roof slope; and installation of two roof lights to front roof slope

    2 Apr 2026 56m away Full applications
  • P/2008/3391 Granted

    67 Manton Avenue Hanwell London W7 2DY London

    Conversion of roofspace into habitable accommodation involving new rear dormer window (Application for a Certificate of Lawfulness for a Proposed Development)

    10 Sep 2008 114m away Lawful development
  • P/2008/3391 Granted

    67 Manton Avenue Hanwell London W7 2DY London

    Conversion of roofspace into habitable accommodation involving new rear dormer window (Application for a Certificate of Lawfulness for a Proposed Development)

    10 Sep 2008 114m away Lawful development
  • 213551CPL Granted

    63 Elthorne Park Road Hanwell London W7 2JB

    Rear roof extension incorporating a Juliet balcony; replacement of windows to front and rear elevation; and installation of two rooflights to front roofslope (Lawful Development Certificate for a Proposed Development)

    10 May 2021 131m away Lawful development

In Old Oak and Park Royal Development Corporation

  • 262398CPL Granted

    22 Endsleigh Road West Ealing W13 0RE

    Rear dormer roof extension to rear (main) roofslope (involving conversion of roofspace to habitable use); rear dormer roof extension to rear outrigger; (following demolition of existing chimney stack above roof level to rear outrigger); installation of two rooflight to front roofslope; and associated internal alterations (Application for a Lawful Development Certificate for a Proposed Development)

    15 Jun 2026 Lawful development
  • 262426CPL Granted

    8 Oakfield Gardens Greenford UB6 8SD

    Single storey rear garden outbuilding (Lawful Development Certificate for a Proposed Development)

    9 Jun 2026 Lawful development
  • 253362OPDLDE Decided

    13 Wendover Court Western Avenue Acton W3 0TG

    Continued use of property (Use Class C3) as House in Multiple Occupation (Use Class C4)(Lawful Development Certificate for Existing Use)

    19 Aug 2025 Lawful development
  • 260468CPL Granted

    46 Rose Gardens Ealing W5 4JX

    Replacement of windows, external doors, fixtures and fittings including front entrance canopy, fascias and rainwater goods; and all other associated internal and external alterations and improvements (Regulation 3 - Application by London Borough of Ealing) (Lawful Development Certificate for a Proposed Development)

    6 Feb 2026 Lawful development
  • 262275CPL Granted

    19 Gordon Road Southall UB2 5QE

    Rear roof extension; rear outrigger roof extension; installation of two rooflights to front roofslope (Lawful Development Certificate for a Proposed Development)

    5 Jun 2026 Lawful development