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Planning application

57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

Granted Cardiff 26/01229/NMA Non Material Amendment

Works: Loft or dormer Windows or glazing

Relates to 25/02767/HSE

Permission granted. Work must normally begin within five years of the decision or the permission lapses.

Proposal

Proposed Non-Material Amendment to Planning Permission 25/02767/HSE- minor alterations including a rooflight to the front roof slope and addition of a small window to the front elevation

As published by the council, reference 26/01229/NMA

Application record

Reference
26/01229/NMA
Type
Non Material Amendment
Status
Decided
Decision
Permission Granted
Received
15 Jun 2026
Validated
15 Jun 2026
Decided
2 Jul 2026
Ward
CYNCOED
Decision by
Delegated to Group Leader
Postcode
CF23 6EJ

Site history

Applications at this address on the Cardiff register

This site has had 3 applications since 2025: 3 approved, 0 refused.

  • 26/01769/NMA Granted

    57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

    Proposed Non-Material Amendment to Planning Permission 25/02767/HSE - To reduce rear extension size and install new doors/windows and alter proposed window sizes

    Decided 9 Sep 2026 Amendments
  • 25/02767/HSE Granted

    57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

    Single storey rear extension, front porch extension, front and rear dormer roof extension, provision of additional driveway space and associated external alterations.

    Decided 22 May 2026 Householder

Timeline

Dates from the published record

  1. 15 Jun 2026

    Received by Cardiff

  2. 2 Jul 2026

    Decision issued: Permission Granted

  3. 22 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/02767/HSE Granted

    57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

    Single storey rear extension, front porch extension, front and rear dormer roof extension, provision of additional driveway space and associated external alterations.

    Decided 22 May 2026 Householder

Who's behind it

Company information only, from the register and Companies House

KnK Design Studio Ltd Agent, a design practice registered in Cardiff

Active · incorporated 2024 · Cardiff

37 applications on PlanIndex · across 3 councils · 88% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

10 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

What this grant of permission means

Cardiff granted permission on 2 July 2026, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

About amendment applications

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

    26/01769/NMA Submitted 19 Aug 2026 0m away

    Proposed Non-Material Amendment to Planning Permission 25/02767/HSE - To reduce rear extension size and install new doors/windows and alter proposed window sizes

    Granted Amendments Extension Windows or glazing 10 docs
  • 57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

    25/02767/HSE Submitted 25 Nov 2025 0m away

    Single storey rear extension, front porch extension, front and rear dormer roof extension, provision of additional driveway space and associated external alterations.

    Granted Householder Extension Loft or dormer 15 docs
    Small domestic
  • 50 Celyn Avenue Cyncoed Cardiff CF23 6EP

    25/00930/HSE Submitted 22 Apr 2025 33m away

    Proposed part single, part two storey rear and side extension and rear dormer loft conversion.

    Granted Householder Extension Loft or dormer 10 docs
    Domestic
  • 1 Duffryn Avenue Lakeside Cardiff CF23 6LE

    22/01561/DCH Submitted 21 Jul 2022 46m away

    PROPOSED FRONT AND REAR SINGLE STOREY EXTENSIONS

    Granted Householder Extension 13 docs
    Small domestic
  • 49 Celyn Avenue Cyncoed Cardiff CF23 6EJ

    26/00916/HSE Submitted 4 May 2026 67m away

    Single storey rear, side and front porch extensions and demolition of garage/ storage.

    Refused Householder Extension Demolition 6 docs
    Small domestic
  • 13 Gwynant Crescent Cyncoed Cardiff CF23 6LT

    25/01849/NMA Submitted 7 Aug 2025 72m away

    Proposed Non-Material Amendment to Planning Permission 23/02834/HSE - 1) The installation of a different Air Source Heat Pump (ASHP). 2) A slight change in positioning of the ASHP.

    Granted Amendments 6 docs

In Cardiff

  • 26/01720/NMA Granted

    66 Caegwyn Road Heath Cardiff CF14 1TD

    Proposed Non-Material Amendment to Planning Permission 23/02187/FUL - To vary the list of approved plans listed under condition 2.

    12 Aug 2026 Amendments
  • 26/01769/NMA Granted

    57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

    Proposed Non-Material Amendment to Planning Permission 25/02767/HSE - To reduce rear extension size and install new doors/windows and alter proposed window sizes

    19 Aug 2026 Amendments
  • 26/01654/NMA Granted

    Radyr Golf Club Drysgol Road Radyr Cardiff CF15 8BS

    Proposed Non-Material Amendment to Planning Permission 22/00537/MJR- add Tree Translocation Assessment Report to Condition 2 (Approved Plans) and Condition 4 (Accordance with Submitted Details and GIS Period)

    4 Aug 2026 Amendments
  • 26/01748/NMA Granted

    BBC Wales Broadcasting House Llantrisant Road Llandaff Cardiff CF5 2YQ

    Non-Material Amendment to Planning Permission 16/01059/MJR- addition of juliet balconies.

    17 Aug 2026 Amendments
  • 26/01664/NMA Granted

    Riverbank Special School Vincent Road Caerau Cardiff CF5 5AQ

    Proposed Non-Material Amendment to Planning Permission 26/00949/FUL- minor amendments to fence heights, gate widths, kerbing and the location of gate 1, with new pedestrian access, speed table and associated works.

    3 Aug 2026 Amendments