12 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7NA
About 12 Rhiw R Ddar
12 Rhiw R Ddar is a semi-detached house in Taffs Well, Cardiff, Cardiff (CF15 7NA). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (April 2014) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 86), a 3-band jump. The latest certificate is from April 2014, so improvements made since then won't be reflected.
Untraded for 29 years, with the last transfer in September 1997. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 72 m² it's 20% larger than the typical home in the postcode (60 m² median across 10 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £233,000 sits 352.4% above the 1997 sale of £51,500. On a £-per-square-foot basis, the last sale (£66/sq ft) was about 67% below the postcode norm.
Energy performance
12 Rhiw R Ddar sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Apr 2024
EPC Rating
Certificate validity
Expired on 16 April 2024
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Planning history
12 Rhiw R Ddar 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
12 Rhiw R Ddar's modelled value sits at over four times its earliest registered sale price (1997).
£233,000
Modelled from EPC, postcode comparables.
£51,500
Recorded with HM Land Registry.
Sales timeline
10 September 1997Most recent
£51,500
Median price across the last 5 sales in CF15 7NA: £165,000 (2026–2017).
Nearby sales in CF15 7NA
24 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7NA
Sold Mar 2026
£215,00028 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7NA
Sold Aug 2024
£210,00016 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7NA
Sold Jul 2016
£130,00014 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7NA
Sold Jul 2014
£130,00040 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7NA
Sold Apr 2012
£145,000
Versus other Rhiw R Ddar homes
Price per m² for 12 Rhiw R Ddar lags the street by a wide margin.
Price per m²
£715
Street avg £2,448
Floor Area
72 m²
Street avg 64 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.7 t/year
Street avg 3.1 t/year
Similar properties nearby
1 Anchor Street, Taffs Well
CF15 7RH
1 Castle Street, Taffs Well
CF15 7RL
1 Church Street, Taffs Well
CF15 7PG
1 Abbey Close, Taffs Well
CF15 7RS
1 Castell Coch View, Tongwynlais
CF15 7LA
1 Catherine Drive, Tongwynlais
CF15 7JT
1 Beechwood Road, Taffs Well
CF15 7RZ
1 Castle Road, Tongwynlais
CF15 7JQ
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Glan-y-ffordd — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







