21/00910/CPD

1. 28 May 2021

   Received by Spelthorne

2. 23 Jul 2021

   Decision issued: Refuse Cert Lawful Prop Use/Dev

3. 30 Jul 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• 26/00654/HOU Awaiting decision

  1 Griffin Way Sunbury-on-Thames TW16 6JD

  Erection of a single storey infill rear extension.

  22 Jun 2026 89m away Householder
• 24/01139/CPD Granted

  115 Manor Lane Sunbury-on-Thames TW16 6JE

  Certificate of lawfulness for the proposed development of a loft conversion to include a hip to gable extension, a rear facing dormer, three no. front facing rooflights and a side window.

  23 Sep 2024 93m away Lawful development
• 21/00987/HOU Granted

  145 Manor Lane Sunbury-on-Thames TW16 6JE

  Conversion of a garage into habitable room and internal layout alterations facilitated with the replacement of garage doors with a window and front porch extension

  14 Jun 2021 103m away Householder
• 21/00869/HOU Withdrawn

  33 Maryland Way Sunbury-on-Thames TW16 6HN

  Partial demolition of existing house and erection of extensions and alterations to create new two storey house.

  24 May 2021 106m away Householder
• 21/00951/HOU Granted

  38 Maryland Way Sunbury-on-Thames TW16 6HR

  The retention of a front boundary wall with a maximum height of 1.19 metres (retrospective).

  8 Jun 2021 145m away Householder
• 21/00866/HOU Withdrawn

  3 Maryland Way Sunbury-on-Thames TW16 6HN

  Proposed roof extension that would include front/side extension with first floor over and raising the ridge height to convert existing bungalow to a two storey house including the erection of a single storey rear extension and first floor rear facing Juliet balconies. The incorporation of integral garage (following demolition of existing garage).

  24 May 2021 174m away Householder

• 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