3, Arlington Road, Sully

1. 29 Oct 2019

   Received by Vale of Glamorgan

2. 4 Dec 2019

   Decision issued: Approved

3. 14 Aug 2026

   Added to PlanIndex

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 five 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.

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

• Oreston, 122, South Road, Sully

  2021/00991/FUL Submitted 5 Jul 2021 300m away

  Two storey rear extension with single storey wrap around ground floor extension

  Granted Full applications Extension 7 docs
  Small domestic

• 36, Porlock Drive, Sully

  2021/00950/1/NMA Submitted 13 Feb 2023 327m away

  Non Material Amendment - Conversion of existing flat roof to gable end pitched roof to accommodate home office. Planning permission ref: 2021/00950/FUL - Rear 2 storey extension to dormer bungalow including extending single storey element

  Refused Amendments Extension Loft or dormer 9 docs
  Small domestic

• 36 Porlock Drive, Sully, CF64 5QA

  2024/00597/1/NMA Submitted 11 Aug 2025 338m away

  Non-Material Amendment - Change of materials to the elevational treatment. The size and massing of the extension and roof dormers have reduced in size. Planning permission ref. 2024/00597/FUL Double storey rear gable end extension, conversion of garage into prayer room and footprint increased, 2 no. roof dormers to side elevation to create more available head space and faciltate relocation of stair

  Granted Amendments Extension Loft or dormer 2 docs

• 27, Conybeare Road, Sully

  2021/00821/FUL Submitted 2 Jun 2021 341m away

  First floor side extension over existing attached lounge

  Granted Full applications Extension 11 docs

• 13, Porlock Drive, Sully

  2019/01257/FUL Submitted 18 Nov 2019 363m away

  Single storey rear extension. Conversion of existing garage into habitable space

  Granted Full applications Extension 8 docs
  Small domestic

• 46, Slade Close, Sully

  2019/01156/FUL Submitted 21 Oct 2019 392m away

  The addition of an extension to the left elevation on the property. The extension to be two storey at the rear and a single storey at the front

  Granted Full applications Extension 9 docs
  Small domestic

• 2026/00463/LAW Decided

  1 St Davids Avenue, Dinas Powys

  Demolition of existing garage and garden wall. Erection of single storey side elevation mono-pitch extension

  18 Jun 2026 Lawful development
• 2025/01251/LAW Withdrawn

  Knoll Cottage, 54 Cog Road, Sully

  Regularise the position and demonstrate the subdivision of the site

  4 Dec 2025 Lawful development
• 2025/01183/LAW Granted

  Congree, Cross Common Road, Dinas Powys

  Alterations to existing dormer

  24 Nov 2025 Lawful development
• 2024/00906/LAW Granted

  19 Highfield Close, Dinas Powys

  Retain existing decking at the rear of the property.

  3 Oct 2024 Lawful development
• 2024/00864/LAW Granted

  60, Minehead Avenue, Sully

  Single storey rear extension which includes internal alterations.

  23 Sep 2024 Lawful development