23 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7PA
About 23 Rhiw R Ddar
23 Rhiw R Ddar is a mid-terrace house in Taffs Well, Cardiff, Cardiff (CF15 7PA). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1976-1982 and council tax band C. The latest certificate (June 2019) shows a C (score 74). The rating has held steady at C across 2 certificates since March 2009. Between certificates, wall efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Poor. The recommended improvements would push it to B (score 87).
Held since June 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 1998–2009, sale prices on this property compounded at 8.1% per year. Today's modelled estimate of £211,000 sits 111% above the 2009 sale of £100,000. On a £-per-square-foot basis, the last sale (£133/sq ft) was about 25.7% below the postcode norm.
Energy performance
EPC Rating
Certificate validity
Valid until 10 June 2029
Property Improvements
Changes detected from historical EPC data
Wall insulation upgraded
More low energy lighting installed
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Planning history
23 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
23 Rhiw R Ddar has more than doubled in price since the earliest registered sale in 1998.
£211,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.1% per year over 11 years.
£100,000
Growth on file: 8.1% per year over 11 years.
Sales timeline
18 June 2009Most recent
£100,000
+66.7%over 7 years31 October 2001
£59,995
+42.8%over 3 years14 May 1998
£42,000
Median price across the last 5 sales in CF15 7PA: £200,000 (2023–2020).
Nearby sales in CF15 7PA
17 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7PA
Sold Oct 2023
£195,00055 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7PA
Sold Jun 2023
£200,00051 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7PA
Sold Jun 2021
£260,00047 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7PA
Sold Oct 2020
£277,00053 Rhiw R Ddar, Taffs Well, Cardiff, CF15 7PA
Sold Jun 2020
£155,000
Versus other Rhiw R Ddar homes
23 Rhiw R Ddar is notably below the street on price per m².
Price per m²
£1,429
Street avg £2,453
Floor Area
70 m²
Street avg 74 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.1 t/year
Street avg 3.2 t/year
Similar properties nearby
1 Catherine Drive, Tongwynlais
CF15 7JT
1 Church Street, Taffs Well
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1 Castle Street, Taffs Well
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1 Anchor Street, Taffs Well
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1 Abbey Close, Taffs Well
CF15 7RS
1 Castell Coch View, Tongwynlais
CF15 7LA
1 Beechwood Road, Taffs Well
CF15 7RZ
1 Castle Road, Tongwynlais
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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.







