Ty Glas 16 William Street Mumbles SA3 4LJ

1. 23 Jul 2021

   Received by Swansea

2. 4 Aug 2021

   Validated

   Checked as complete and ready for consideration.

3. 24 Sep 2021

   Decision issued: Was Not Lawful (existing)

4. 21 Sep 2026

   Added to PlanIndex

Swansea refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• Workshop/Garage Rear Of 14 William Street Mumbles Swansea SA3 4LJ

  2020/0813/FUL Submitted 6 May 2020 50 yards away

  Change of use and extension of existing detached workshop/garage into a one bed dwelling with ground floor garage

  Refused Full applications Extension 20 docs
  Domestic

• 31 Gloucester Place Mumbles Swansea SA3 4LF

  2023/0004/DOC Submitted 3 Jan 2023 50 yards away

  Discharge of condition 3 (Ecological Enhancement Measures) of planning permission 2022/1430/ful approved 5th August 2022

  Granted Conditions 8 docs

• 9 John Street Mumbles Swansea SA3 4LH

  2019/2173/FUL Submitted 18 Sep 2019 50 yards away

  Single storey rear extension, first floor rear extension with Juliette balcony, three rear rooflights and external alterations

  Granted Full applications Extension Loft or dormer 8 docs
  Small domestic

• 47 Gloucester Place Mumbles Swansea SA3 4LF

  2019/0829/FUL Submitted 9 Apr 2019 50 yards away

  Change of use from a residential property to a holiday let

  Granted Full applications 6 docs

• 13 William Street Mumbles Swansea SA3 4LJ

  2023/0682/DOC Submitted 21 Mar 2023 50 yards away

  Discharge of conditions 3 (Materials) and 5 (Scheme of Ecological Enhancement Measures and an Implementation Timetable) of planning permission 2022/2752/FUL granted 17th January 2023

  Granted Conditions 8 docs

• 13 William Street Mumbles Swansea SA3 4LJ

  2022/2752/FUL Submitted 18 Nov 2022 50 yards away

  Conversion of detached garage to a home office, music room, utility room with addition of door, new fenestration alterations and a rooflight

  Granted Full applications Loft or dormer Windows or glazing 10 docs

• 2026/1645/PLD Awaiting decision

  27 Sycamore Road West Cross Swansea SA3 5LB

  Detached outbuilding (application for a Certificate of Proposed Lawful Development)

  Received 7 Oct, published by the council 9 Oct 2026 Lawful development
• 2026/1344/ELD Granted

  50 Eversley Road Sketty Swansea SA2 9DA

  Raised deck (application for a Certificate of Existing Lawful Development)

  Received 17 Aug, published by the council 27 Aug 2026 Lawful development
• 2026/1525/PLD Refused

  15 Westland Avenue West Cross Swansea SA3 5NP

  Single storey rear extension and alterations to fenestration (application for a Certificate of Proposed Lawful Development)

  Received 18 Sep, published by the council 25 Sep 2026 Lawful development
• 2026/1627/PLD Awaiting decision

  73 Mumbles Road West Cross Swansea SA3 5AA

  Stationing of a caravan to provide ancillary residential accommodation (application for a Certificate of Proposed Lawful Development)

  Received 5 Oct, published by the council 9 Oct 2026 Lawful development
• 2026/1270/ELD Refused

  188 Hanover Street Swansea SA1 6BP

  Use of property as a HMO (Class C4) (application for a Certificate of Existing Lawful Development)

  Received 4 Aug, published by the council 25 Aug 2026 Lawful development