20 Ty-mawr Avenue Rumney Cardiff CF3 3AF
Approved on 23 February 2026
Council decision: Permission GrantedDelegated (officer decision)
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
Side extension
- Received
- 9 February 2026
- Decision level
- Delegated (officer decision)
- Council
- Cardiff Council
- Ward
- RUMNEY
- Agent
- Cytech Design
- ReceivedReceived9 Feb
- ValidatedValidated9 Feb
- Consult.Consultation23 Feb
- TargetTarget Date
- DecidedDecided23 Feb
Decided in 14 days (council typically 49)
About this application
This is an outline application for a side extension at 20 Ty-mawr Avenue Rumney Cardiff CF3 3AF. Cardiff has handled 466 applications of this type. This one was decided in 14 days, 5 weeks quicker than Cardiff's typical decision time. There are no previous applications recorded at this address. In the past year there have been 15 applications across RUMNEY. We hold 234 applications in total for the CF3 postcode area.
93% of outline 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
- CF3 3AF
- Application type
- Cert of Lawfulness Proposed (s192)
- Scale / size
- Small
Planning application dates
- Date validated
- 9 February 2026
- Last date for comments
- 23 February 2026
Applicant and agent
- Agent
- Cytech Design
- Architect profile
- CYTECH DESIGN LIMITED
- Agent address
- 19 Wentloog Road Church Road Rumney Cardiff CF3 3LN
Site constraints
Source: Cardiff
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Around this site
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For applicants and trades
Contractors near this project
Find contractors for extensions near this site- N D L Electrical LimitedElectrician0.2 mi
- Allens Electrical & Security SystemsElectrician0.3 mi
- Securalec LtdElectrician0.3 mi
- S F Electrical LtdElectrician0.3 mi
Planning something similar?
See what the council approved and refused for single-storey side extensions on your street. Pick your home and get the evidence before you pay for drawings.