Erskine Cottage Pwllycrochan Avenue Colwyn Bay Conwy LL29 7BW

1. 19 Mar 2026

   Received by Conwy

2. 23 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 6 Jul 2026

   Decision issued: Approved With Conditions

4. 7 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

• The Grange 1 Oak Drive Colwyn Bay LL29 7BS

  0/48652 Submitted 1 Jul 2021 97m away

  Certificate of lawfulness for the existing use as use class C2 Residential Institution

  Granted Lawful development 7 docs

• The Grange 1 Oak Drive Colwyn Bay LL29 7BS

  0/50054 Submitted 15 Sep 2022 100m away

  The replacement of some windows with double glazed, slimlite windows to match as closely as possible the design appearance of the original. The encapsulation of some existing stained glass windows. The installation of some new stained glass panels where originally there would have been some that have since been removed.

  Granted Full applications Windows or glazing 17 docs

• Eaton Fives Court 8 Rydal Penrhos School Pwllycrochan Avenue Colwyn Bay LL29 7DA

  0/53643 Submitted 5 Aug 2026 143m away

  86% historically approved · decision due ~27 Oct

  First floor extension at the Eton Fives Court building, Rydal Penrhos School. The proposal involves the replacement of an existing first floor conservatory with a small office, providing accommodation of approximately 10.1 square metres.

  Awaiting decision Full applications Extension

• Rydal Penrhos Preparatory School Pwllycrochan Avenue Colwyn Bay LL29 7BP

  0/53577 Submitted 30 Jul 2026 143m away

  86% historically approved · decision due ~6 Oct

  Works discussed with Tree Officer - Removal of trees in G3 excepting the silver birch, and removal of G13 - 1x ash and 1x elm. To be replaced at 3:1 in accordance with compensatory planting scheme attached.

  Awaiting decision Trees 6 docs

• Rydal Penrhos Preparatory School Pwllycrochan Avenue Colwyn Bay LL29 7BP

  0/53003 Submitted 17 Nov 2025 143m away

  Approval of condition no 4 (Programme of historic building recording) of planning approval 0/51857 (Variation of conditions 2, 7, 8, 10, 12, 15, 16, 18, 20 & 21 of planning consent 0/49674 (Demolition of extensions to Pwllycrochan House and Preparatory School Science and IT building, Assembly Hall and associated outbuildings, and erection of 63no. new dwellings, and provision of 31no. apartments in Pwllycrochan House together with the provision of on-site public open space and requisite site infrastructure.) to allow for amendments to the approved scheme and variation of wording of conditions to require compliance with approved plans.)

  Granted Conditions New dwelling Extension +1 11 docs
  Major scheme

• Rydal Penrhos Preparatory School Pwllycrochan Avenue Colwyn Bay LL29 7BP

  0/53004 Submitted 17 Nov 2025 143m away

  Approval of condition no 3 (Programme of Historic Building Recording) of Listed Building Consent 0/49675 (Demolition of extensions to Pwllycrochan House and Preparatory School Science and IT building, Assembly Hall and associated outbuildings and provision of 31no. apartments in Pwllycrochan House.)

  Granted Conditions New dwelling Extension +1 9 docs
  Major scheme

• 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