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Planning application

21/00922/CPD

Glenavon 133 Horton Road Stanwell Moor Staines-upon-Thames TW19 6AF

Granted Spelthorne Cert. of Lawful Proposed Use and Dev

Proposal

Certificate of Lawfulness for the proposed development of loft alterations, to include a hip to gable alteration to the rear of the dwelling, two side facing dormers, two front facing roof lights, a Juliet balcony at the rear and a side window.

As published by the council, reference 21/00922/CPD

Timeline

Dates from the published record

  1. 1 Jun 2021

    Received by Spelthorne

  2. 26 Jul 2021

    Decision issued: Grant Cert Lawful Prop Use/Dev

  3. 30 Jul 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

  • 25/01397/FUL Awaiting decision

    Glenhaven Drive Stanwell Moor Staines-upon-Thames TW19 6AF

    Demolition of 3no. existing outbuildings and 2no. fuel generators together with redevelopment of site to provide 9no. residential dwellings with associated access, parking, landscaping and other infrastructure.

    19 Nov 2025 47m away Full applications
  • 22/01728/FUL Refused

    1 Hithermoor Road Stanwell Moor Staines-upon-Thames TW19 6AH

    Erection of an end of terrace dwelling, as shown on drawings numbered 101, 103A, 104A, 105A, 205,A 206, 207, 208A, 403 and 404 received on 30 January 2023.

    21 Dec 2022 159m away Full applications
  • 23/00118/HOU Granted

    31 Hithermoor Road Stanwell Moor Staines-upon-Thames TW19 6AH

    Retrospective planning application for a single storey outbuilding. As shown on drawing no's 595-PLA-001and 595-PLA-011 received 31.01.2023.

    30 Jan 2023 209m away Householder
  • 23/00129/HOU Granted

    17 Thornbank Close Stanwell Moor Staines-upon-Thames TW19 6AL

    Erection of a single storey rear extension

    2 Feb 2023 230m away Householder
  • 21/01036/HOU Granted

    20 Southern Cottages Horton Road Stanwell Moor Staines-upon-Thames TW19 6AG

    Erection of a part two storey part single storey rear extension (following demolition of an existing single storey rear extension and an outbuilding adjacent to the northern boundary).

    23 Jun 2021 321m away Householder
  • 22/01445/HOU Refused

    64 Hithermoor Road Stanwell Moor Staines-upon-Thames TW19 6AT

    Erection of two storey side and front extension, porch and enlarged detached garage

    17 Oct 2022 368m away Householder

In Spelthorne

  • 26/00604/CPD Granted

    13 Lucie Avenue Ashford TW15 2BH

    Certificate of lawfulness for proposed rear dormer loft conversion with 3 front roof windows

    8 Jun 2026 Lawful development
  • 26/00585/CPD Granted

    55 Gordon Close Staines-upon-Thames TW18 1AP

    Certificate of lawfulness for proposed dormer in rear roof and hip to gable extension and two rooflights within the front roof slope

    5 Jun 2026 Lawful development
  • 26/00563/CPD Granted

    141 Gaston Way Shepperton TW17 8ET

    Certificate of lawfulness for loft conversion with rear flat roof dormer

    1 Jun 2026 Lawful development
  • 26/00571/CPD Granted

    21 Arnold Road Laleham Staines-upon-Thames TW18 1LY

    Certificate of Lawfulness for proposed hip to gable roof alteration with rear facing dormer and 2 no. roof lights on front roof plane (As shown on Location plan and plans no's MATTHEW/PLAN/001, /002, /003, /004 rec'd 01.06.2026.)

    1 Jun 2026 Lawful development
  • 26/00787/CPD Awaiting decision

    91 Metcalf Road Ashford TW15 1HB

    Certificate of Lawfulness for the proposed erection of a front porch.

    27 Jul 2026 Lawful development