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Planning application

26/00809/CLPUD

Glenwood 10 Ty-gwyn Crescent Penylan Cardiff CF23 5JL

Awaiting decision Cardiff Cert of Lawfulness Proposed (s192)

Proposal

Single storey rear extension to replace existing with rear terrace and associated works.

As published by the council, reference 26/00809/CLPUD

Timeline

Dates from the published record

  1. 24 Apr 2026

    Received by Cardiff

  2. 22 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Cardiff 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.

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

  • 25/02100/CLPUD Awaiting decision

    9 Ty-gwyn Crescent Penylan Cardiff CF23 5JL

    Repair works to the rear extension including altering the guttering to run externally via a hopper and as indicated on drawing and connecting into existing drainage, and repair where the render has blown by means of recladding.

    15 Sep 2025 49m away Lawful development
  • 26/00754/DOC Decided

    Isfryn 7 Ty-gwyn Crescent Penylan Cardiff CF23 5JL

    Discharge of Condition 3 (Arboricultural Method Statement and Tree Protection Plan) of permission 24/01104/HSE

    16 Apr 2026 85m away Conditions
  • 26/01018/DOC Decided

    Penylan Cottage 1 Ty-gwyn Avenue Penylan Cardiff CF23 5JJ

    Discharge of Conditon 3 (Arboricultural Method Statement and Tree Protection Plan) of 25/02382/HSE

    18 May 2026 102m away Conditions
  • 25/02382/HSE Awaiting decision

    Penylan Cottage 1 Ty-gwyn Avenue Penylan Cardiff CF23 5JJ

    Removal of existing store. Two storey side, rear and front extension with associated alterations.

    16 Oct 2025 102m away Householder
  • 25/01710/NMA Awaiting decision

    8 Cyncoed Road Penylan Cardiff CF23 5SG

    Proposed Non-Material Amendment to Planing Permission 25/00280/HSE- Amendment to dormer window.

    22 Jul 2025 232m away Amendments
  • 25/02613/WTTPP Granted

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    Oaks T1 and T2 by entrance to Penylan Court - 2m overall crown reduction.

    10 Nov 2025 300m away Trees

In Cardiff

  • 26/01314/CLPUD Granted

    Beech House Pascal Close Trowbridge Cardiff

    Remove air handling unit and chiller systems. The plinth to be removed and a replacement plinth being installed on the same footprint. Installation of a new liquid nitrogen tank.

    23 Jun 2026 Lawful development
  • 26/01449/CLPUD Awaiting decision

    53 Westbourne Road Whitchurch Cardiff CF14 2BR

    single storey flat roof side and rear extension

    13 Jul 2026 Lawful development
  • 26/01429/CLPUD Awaiting decision

    311 Western Avenue Llandaff Cardiff CF5 2BA

    Works associated with a loft conversion

    10 Jul 2026 Lawful development
  • 26/01415/CLPUD Awaiting decision

    85 Wenallt Road Rhiwbina Cardiff CF14 6TP

    Construction of rear roof dormer and installation of roof windows.

    9 Jul 2026 Lawful development
  • 26/01391/CLEUD Awaiting decision

    173 Rhymney Street Cathays Cardiff CF24 4DL

    Use of the property as a Sui Generis House in Multiple Occupation (HMO).

    6 Jul 2026 Lawful development