9 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU
About 9 Cwm Gwynlais
9 Cwm Gwynlais is a detached house in Tongwynlais, Cardiff, Cardiff (CF15 7HU). It has a recorded floor area of 106 m² (around 1141 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (June 2025) shows a C (score 70). When first surveyed in January 2011 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Poor to Good; while window efficiency dropped from Average to Poor.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Roof insulation improved
More low energy lighting installed
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Planning history
9 Cwm Gwynlais has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
9 Cwm Gwynlais has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£361,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF15 7HU: £300,000 (2022–2017).
Nearby sales in CF15 7HU
24 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU
Sold Dec 2022
£302,00017 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU
Sold Jun 2021
£365,00011 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU
Sold Aug 2019
£225,0006 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU
Sold Jun 2019
£128,30427 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU
Sold Feb 2017
£300,000
Versus other Cwm Gwynlais homes
9 Cwm Gwynlais outperforms the street on co₂ emissions by a wide margin.
EPC Rating
70 (C)
Street avg 63 (D)
Floor Area
106 m²
Street avg 104 m²
CO₂ Emissions
3.3 t/year
Street avg 4.3 t/year
Habitable Rooms
6 rooms
Street avg 6 rooms
Similar properties nearby
1 Brynau Road, Taffs Well
CF15 7SA
1 Forest Cottage, Castle Road, Tongwynlais
CF15 7JR
1 Cross Street, Tongwynlais
CF15 7NQ
1 Alfred Terrace, Taffs Well
CF15 7RJ
1 Bute Villa, Taffs Well
CF15 7QP
1 Clos Llewellyn, Taffs Well
CF15 7AT
1 Bute Street, Tongwynlais
CF15 7LJ
1 Cwm Gwynlais, Tongwynlais
CF15 7HU
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pantgwynlais — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







