57 Celyn Avenue Cyncoed Cardiff CF23 6EJ
Approved on 22 May 2026
Council decision: Permission GrantedChair (1- 5 Reps)6 conditions
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Single storey rear extension, front porch extension, front and rear dormer roof extension, provision of additional driveway space and associated external alterations.
- Received
- 25 November 2025
- Decision level
- Chair (1- 5 Reps)
- Council
- Cardiff Council
- Ward
- CYNCOED
- Agent
- KnK Design Studio Ltd
- ReceivedReceived25 Nov
- ValidatedValidated25 Nov
- Consult.Consultation18 Dec
- TargetTarget Date
- DecidedDecided22 May
Decided in 178 days (council typically 49)
About this application
This is a full planning application for a single storey rear extension at 57 Celyn Avenue Cyncoed Cardiff CF23 6EJ. Cardiff has handled 3,084 applications of this type. This one was decided in 178 days, 18 weeks longer than Cardiff's typical decision time. There have been 2 other applications at this address. In the past year there have been 64 applications across CYNCOED. We hold 1,386 applications in total for the CF23 postcode area.
95% of full applications at Cardiff Council were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- CF23 6EJ
- Application type
- Householder Planning Permission
- Scale / size
- Small
Planning application dates
- Date validated
- 25 November 2025
- Consultation expiry
- 14 May 2026
- Consultation start
- 27 November 2025
- Consultation end
- 18 December 2025
- Neighbour consultation start
- 30 April 2026
- Neighbour consultation end
- 14 May 2026
- Last date for comments
- 14 May 2026
Applicant and agent
- Agent
- KnK Design Studio Ltd
- Architect profile
- KNK DESIGN STUDIO LTD
- Agent address
- 69 Llwyn Y Pia Road Lisvane Cardiff CF14 0SX
Site constraints
Associated applications
- 202619 Aug
Proposed Non-Material Amendment to Planning Permission 25/02767/HSE
PendingNon-material amendmentAmendment26/01769/NMA - 202615 Jun
Proposed Non-Material Amendment to Planning Permission 25/02767/HSE
PendingNon-material amendmentAmendment26/01229/NMA - 202525 Nov
Single storey rear extension, front porch extension, front and rear dormer roof extension, provision of…
This applicationApprovedFull25/02767/HSE
Source: Cardiff
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Around this site
Nearby applications
- 57 Celyn Avenue Cyncoed Cardiff CF23 6EJ26/01229/NMA · AmendmentAwaiting decision0.0 mi
- 55 Celyn Avenue Cyncoed Cardiff CF23 6EJ23/01428/HSE · FullRefused0.0 mi
- 1 Duffryn Avenue Lakeside Cardiff CF23 6LE22/01561/DCH · FullApproved0.0 mi
- 17 Leven Close Lakeside Cardiff CF23 6DN22/00509/DCH · FullApproved0.0 mi
- 49 Celyn Avenue Cyncoed Cardiff CF23 6EJ26/00916/HSE · FullAwaiting decision0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Power Full Electrical LtdElectrician0.3 mi
- Electricall South Wales LimitedElectrician0.3 mi
- C W H Window & Conservatory SystemsWindow & Door Installer0.4 mi
- R Thomas Plumbing and Heating Ltd0.4 mi
Planning something similar?
See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.