Dilysdale Gannock Road Deganwy LL31 9HJ

1. 27 Jul 2026

   Received by Conwy

2. 20 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 30 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 15 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Conwy took a median of 72 days over the applications it decided in the last year.

This application is with Conwy for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• Newlyn Gannock Road Deganwy LL31 9HJ

  0/48492 Submitted 10 May 2021 38m away

  Reconfiguration of domestic building to revert back to single dwelling. Works include extension/alteration works

  Granted Full applications Extension 14 docs
  Domestic

• Charlwood Gannock Park Deganwy LL31 9PJ

  0/48815 Submitted 5 Aug 2021 114m away

  Proposed two storey extension and alterations to the rear along with proposed new vehicular access

  Withdrawn Full applications Extension 9 docs

• Falinge Gannock Park Deganwy LL31 9PJ

  0/46122 Submitted 22 Mar 2019 131m away

  Proposed rear single storey extension

  Granted Full applications Extension 16 docs
  Small domestic

• 8 Bryn Gannock Deganwy LL31 9UG

  0/51921 Submitted 13 Aug 2024 138m away

  Construction of balustrade to form balcony on part of existing flat roof to rear of existing dwelling

  Refused Full applications 26 docs
  Domestic

• 8 Bryn Gannock Deganwy LL31 9UG

  0/50536 Submitted 28 Feb 2023 138m away

  Single storey side extension. Formation of rear balcony over existing flat roof structure

  Refused Full applications Extension 22 docs
  Small domestic

• Rose Cottage Gannock Park Deganwy Conwy LL31 9PJ

  0/52813 Submitted 8 Sep 2025 161m away

  Single storey side extension

  Granted Full applications Extension 13 docs
  Small domestic

• 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