4 Mossley Mount Penrhyn Bay Conwy LL30 3HF

1. 26 Aug 2025

   Received by Conwy

2. 9 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 29 Sep 2025

   Decision issued: Approved

4. 6 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

• 192 Dinerth Road Rhos On Sea Conwy LL28 4UP

  0/52774 Submitted 26 Aug 2025 0m away

  Single storey flat roofed rear extension in lieu of existing conservatory

  Granted Full applications Extension 11 docs
  Small domestic

• 51 Llandudno Road Penrhyn Bay LL30 3HN

  0/51900 Submitted 7 Aug 2024 64m away

  Proposed Rear Extension to Ground Floor Flat

  Granted Full applications Extension 9 docs

• 8 St David's Road Penrhyn Bay LL30 3EL

  0/48799 Submitted 6 Aug 2021 146m away

  Extension to rear

  Granted Full applications Extension 9 docs

• South View 3 Garden Drive Penrhyn Bay LL30 3LL

  0/46786 Submitted 18 Oct 2019 195m away

  Proposed demolition of existing conservatory and replacement with new extension.

  Refused Full applications Extension Demolition 8 docs

• Anrose House 27 Llandudno Road Penrhyn Bay LL30 3EP

  0/53088 Submitted 27 Nov 2025 224m away

  86% historically approved · decision due ~22 Oct

  1) Retrospective planning application for replacement and extension of existing wooden fence from left side wall of house up to the boundary wall and around the side of the property sitting behind boundary wall to create an enclosed space. 2) Erection of garden shed.

  Awaiting decision Full applications Extension 21 docs
  Small domestic

• 39 Glan Y Mor Road Penrhyn Bay Conwy LL30 3PF

  0/49204 Submitted 30 Nov 2021 279m away

  To remove 2 no. Monterey cypress trees

  Granted Trees 5 docs

• 0/53503 Granted

  Palo Seco 51 Pen Y Bryn Road Upper Colwyn Bay Colwyn Bay Conwy LL29 6AG

  Certificate of Lawfulness for the proposed construction of a single storey detached garden room and ancillary facilities ancillary to existing dwelling

  29 Jun 2026 Lawful development
• 0/53453 Granted

  4 Trem Yr Afon Llandudno Junction Conwy LL31 9AG

  Certificate of lawful development for the existing use of Class C1 Guest House to a C3 dwelling

  13 Feb 2026 Lawful development
• 0/53631 Awaiting decision

  Hyfrydle St Beuno's Road Great Orme Llandudno LL30 2JU

  Certificate of Lawfulness for the proposed change of fenestration to the rear elevation of the existing dwellinghouse.

  18 Aug 2026 Lawful development
• 0/53639 Awaiting decision

  5 Rhiw Road Colwyn Bay LL29 7TE

  Certificate of Lawfulness for the proposed replacement of existing vertical boiler flue to the principal elevation roof

  12 Aug 2026 Lawful development
• 0/53466 Granted

  Land South of Gwellyn Avenue Gwellyn Avenue Kinmel Bay Rhyl LL18 5HR

  Certificate of lawfulness for an existing use of the land for B8 (Storage and Distribution) and Sui Generis (Caravan Storage)

  9 Jun 2026 Lawful development