5 Cyncoed Avenue, Cardiff, CF23 6ST
About 5 Cyncoed Avenue
5 Cyncoed Avenue is a detached house in Cardiff (CF23 6ST). It has a recorded floor area of 161 m² (around 1733 sq ft), construction records dating it to 1930-1949 and council tax band H. The latest certificate (January 2025) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 78).
It changed hands recently, sold May 2025 for £800,000. 2 planning records sit against the property, 0 approved, 0 refused, 2 pending. An application is currently awaiting a decision. Today's modelled estimate of £940,000 is 17.5% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£462/sq ft) was about 106.3% above the typical sold price in the postcode.
Everything you need to know about 5 Cyncoed Avenue
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Energy performance
5 Cyncoed Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 26 January 2035
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Planning history
There is a planning application currently awaiting a decision.
2 applications on record at 5 Cyncoed Avenue, Cardiff, CF23 6ST
2 live now- Jul 2025ExtensionFullOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension and installation of an Air Source Heat Pump with external alterations to the property.
- Documents
- 12 docs on file
- Reference
- 25/01653/HSE
- More recent applications — locked
- AmendmentFeb 2026Decision
Unlock 5 Cyncoed Avenue, Cardiff, CF23 6ST's full planning history
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- Every decision — granted, refused or withdrawn
- All 2 applications on this property in full, plus 1 notable nearby
- The 14 documents, officer reports & conditions
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Sales history & valuation
Latest sale on 5 Cyncoed Avenue was the highest on Land Registry record across the postcode.
£940,000
Modelled from EPC, postcode comparables.
£800,000
Recorded with HM Land Registry.
Sales timeline
13 May 2025Most recent
£800,000
Median price across the last 5 sales in CF23 6ST: £645,000 (2019–1999).
Nearby sales in CF23 6ST
Versus other Cyncoed Avenue homes
5 Cyncoed Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£4,969
Street avg £2,485
Floor Area
161 m²
Street avg 198 m²
Habitable Rooms
7 rooms
Street avg 8 rooms
CO₂ Emissions
7.1 t/year
Street avg 9.1 t/year
Everything you need to know about 5 Cyncoed Avenue
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Crime
169/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Cyncoed Avenue — bus stop.
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A Local Area report breaks down crime, transport links, schools and air quality in depth.