The Studio Rear of London House Ancaster Square Llanrwst LL26 0LD

1. 4 Oct 2022

   Received by Conwy

2. 15 Dec 2022

   Validated

   Checked as complete and ready for consideration.

3. 10 Feb 2023

   Decision issued: Approved

4. 25 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

• Trysorau Bach 20 Ancaster Square lLlanrwst LL26 0LD

  0/52780 Submitted 20 Aug 2025 9m away

  Approval of condition nos 3 (Sound & Vibration Insulation) 4 (Storage of waste/recycling receptables) & 5 (Biodiversity enhancements) of planning approval 0/52125 (Change of use of first floor from ancillary storage to a residential 1 bed flat)

  Granted Conditions 12 docs

• 22 Ancaster Square Llanrwst LL26 0LD

  0/50049 Submitted 7 Sep 2022 9m away

  Place a second load of solar panels on the roof of MIConwy, on the right side of the ridge. In considering living costs, we hope to reduce our electricity costs by producing it ourselves and possibly installing a battery in the building as we would be producing enough electricity to store it.

  Withdrawn Full applications 14 docs

• 22 Ancaster Square Llanrwst LL26 0LD

  0/50113 Submitted 31 Aug 2022 9m away

  Proposed change of use of existing second floor offices (B1) to provide a multi use/activity space for both community and private use (A3, B1, D1 , D2 )

  Granted Full applications 27 docs

• The Hand Ancaster Square Llanrwst Conwy LL26 0LH

  0/46780 Submitted 11 Oct 2019 47m away

  Approval of condition no 3 of planning approval 0/46147 (Replacement of timber windows with UPVC)

  Granted Conditions Windows or glazing 8 docs

• The Hand Ancaster Square Llanrwst Conwy LL26 0LH

  0/46147 Submitted 26 Mar 2019 47m away

  Replacement of timber windows with UPVC

  Granted Full applications Windows or glazing 11 docs

• Ty Apothecary 14 Ancaster Square Llanrwst LL26 0LG

  0/46233 Submitted 11 Apr 2019 49m away

  Change of use of Ground floor to shop (use class A1) and associated internal works, Change of use of Upper floors to 1 no self contained flat, External Repainting (Listed Building Consent)

  Granted Heritage and listed buildings 20 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