7 Mostyn Road Colwyn Bay LL29 8PB

1. 15 May 2026

   Received by Conwy

2. 29 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 9 Jul 2026

   Decision issued: Approved

4. 7 Aug 2026

   Added to PlanIndex

Conwy granted permission on 9 July 2026, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 1 Aucklands, Ground Floor Office Mostyn Road Colwyn Bay LL29 8PB

  0/52908 Submitted 13 Oct 2025 50 yards away

  Proposed change of use of existing ground floor and basement floor accommodation to a self-contained flat accommodation unit & associated works.

  Granted Full applications 16 docs

• Marine House 2 Marine Road Colwyn Bay LL29 8PH

  0/50216 Submitted 22 Nov 2022 50 yards away

  Construction of detached ancillary office building

  Granted Full applications 23 docs

• Former Coach House to Rear of 74 Conway Road Colwyn Bay Conwy LL29 7LD

  0/50371 Submitted 12 Jan 2023 50 yards away

  Change of use of redundant outbuilding to emergency accommodation

  Granted Full applications 19 docs

• Former Coach House to Rear of 74 Conway Road Colwyn Bay Conwy LL29 7LD

  0/50553 Submitted 2 Mar 2023 50 yards away

  Approval of matters required by condition 4 (Photographic Survey) & 9 (Obscure glazing) of planning permission 0/50371 (Change of use of redundant outbuilding to emergency accommodation)

  Granted Conditions Windows or glazing 9 docs

• 33 Princes Drive Colwyn Bay LL29 8PD

  0/53512 Submitted 25 Jun 2026 50 yards away

  T1: Copper Beech, proposal of reducing the crown by approximately 1.5 - 2.5 meters overall.

  Granted Trees 6 docs

• 26 Mostyn Road Colwyn Bay LL29 8PB

  0/48059 Submitted 13 Jan 2021 100 yards away

  Change of use from offices into a single 3 bedroom dwelling.

  Granted Full applications 23 docs
  Domestic

• 0/53610 Refused

  Dilysdale Gannock Road Deganwy LL31 9HJ

  Certificate of Lawfulness for a proposed extension to dwelling.

  Received 27 Jul, published by the council 30 Aug 2026 Lawful development
• 0/53574 Refused

  The Ranch Land North of Bryn Gwynt Lane Penrhynside Llandudno LL30 3BT

  Certificate of Lawfulness for the existing use as a C3 dwelling

  Received 6 Jul, published by the council 14 Aug 2026 Lawful development
• 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

  Received 29 Jun, published by the council 7 Aug 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

  Received 13 Feb, published by the council 7 Aug 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.

  Received 18 Aug, published by the council 30 Aug 2026 Lawful development