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Planning application

2026/0638/PLD

12 Llewelyn Circle Mayhill Swansea SA1 6SN

Decided Swansea Lawful Dev. Cert - Proposed

Proposal

Demolition of existing rear conservatory and construction of a single storey rear extension with pitched roof and patio doors (application for a Certificate of Proposed Lawful Development)

As published by the council, reference 2026/0638/PLD

Timeline

Dates from the published record

  1. 20 Apr 2026

    Received by Swansea

  2. 22 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Apr 2026

    Decision issued: Is Lawful (proposed)

  4. 28 Jul 2026

    Added to PlanIndex

After the decision

The process from here

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within five years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • 2026/0202/PRE Decided

    12 Llewelyn Circle Mayhill Swansea SA1 6SN

    Pre-application enquiry - Proposed removal of existing single storey rear conservatory. Proposed permitted single storey flat roof extension with skylight to replace conservatory.

    6 Feb 2026 0m away Other
  • 2026/0321/PLD Decided

    12 Llewelyn Circle Mayhill Swansea SA1 6SN

    Demolition of existing rear conservatory and construction of single storey flat roof rear extension with patio doors and skylight (application for a Certificate of Proposed Lawful Development)

    2 Mar 2026 0m away Lawful development
  • 2026/0961/FUL Awaiting decision

    3 Nicander Parade Mayhill Swansea SA1 6TX

    Two storey side extension, single storey rear extension, and front bay window, front canopy and rear raised patio.

    8 Jun 2026 133m away Full applications
  • 2026/1213/FUL Awaiting decision

    8 Cadwaladr Circle Mayhill Swansea SA1 6UB

    Demolition of existing brick outhouse and construction of a single storey side extension.

    23 Jul 2026 266m away Full applications
  • 2026/0728/ELD Decided

    58 Terrace Road Mount Pleasant Swansea SA1 6HU

    Use of property as a 5 bed HMO (application for a Certificate of Existing Lawful Development )

    5 May 2026 279m away Lawful development
  • 2026/1198/FUL Awaiting decision

    280 Townhill Road Mayhill Swansea SA1 6PE

    Extension of existing car hardstanding and reformation of existing steps together with an external lift

    20 Jul 2026 341m away Full applications

In Swansea

  • 2026/0855/ELD Granted

    17 Delfan Llangyfelach Swansea SA6 6DD

    Rear Dormer (Application for a Certificate of Existing Lawfulness)

    20 May 2026 Lawful development
  • 2026/0872/PLD Decided

    Meridian Tower Trawler Road Maritime Quarter Swansea

    Cladding remediation of 4 no. existing residential buildings, replacing materials on a like-for-like basis (application for a Certificate of Proposed Lawful Development)

    22 May 2026 Lawful development
  • 2026/1199/ELD Awaiting decision

    155 Rhyddings Terrace Brynmill Swansea SA2 0DR

    Use of property as a HMO for up to 6 people (Class C4) (application for a Certificate of Existing Lawful Development)

    20 Jul 2026 Lawful development
  • 2026/1149/PLD Decided

    30 Ladysmith Road Treboeth Swansea SA5 9DL

    Single storey rear extension (application for a Certificate of Proposed Lawful Development)

    10 Jul 2026 Lawful development
  • 2026/0874/ELD Decided

    35 And 35A Brunswick Street Swansea SA1 4JP

    Use of property as a 6 bed HMO comprising of a 2 bed flat at basement level and the ground and first floor are used as 4 bed (application for a Certificate of Existing Lawful Development)

    22 May 2026 Lawful development