10 Parc Castell Y Mynach, Creigiau, Cardiff, CF15 9NU
About 10 Parc Castell Y Mynach
10 Parc Castell Y Mynach is a detached house in Creigiau, Cardiff, Cardiff (CF15 9NU). It has a recorded floor area of 209 m² (around 2250 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (November 2013) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 83), a 2-band jump. The latest certificate is from November 2013, so improvements made since then won't be reflected.
It hasn't traded since March 2004, a hold of 22 years that's notably long for the area. At 209 m² the property is well over the postcode median (120 m² across 19 EPCs), placing it in the larger end of the local stock. Across 2001–2004, sale prices on this property compounded at 11.1% per year. Today's modelled estimate of £570,000 sits 132.7% above the 2004 sale of £245,000. On a £-per-square-foot basis, the last sale (£109/sq ft) was about 52.2% below the postcode norm.
Energy performance
10 Parc Castell Y Mynach's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 Nov 2023
EPC Rating
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Planning history
10 Parc Castell Y Mynach has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
10 Parc Castell Y Mynach's estimated value is more than triple its earliest registered sale price (2001).
£570,000
Modelled from EPC, postcode comparables and a sale-price growth of 11.1% per year over 3 years.
£245,000
Growth on file: 11.1% per year over 3 years.
Sales timeline
28 March 2004Most recent
£245,000
+40.0%over 3 years19 January 2001
£175,000
Median price across the last 5 sales in CF15 9NU: £470,000 (2025–2022).
Nearby sales in CF15 9NU
23 Parc Castell Y Mynach, Creigiau, Cardiff, CF15 9NU
Sold Jul 2025
£470,0001 Parc Castell Y Mynach, Creigiau, Cardiff, CF15 9NU
Sold Mar 2025
£560,00017 Parc Castell Y Mynach, Creigiau, Cardiff, CF15 9NU
Sold Sept 2022
£366,20014 Parc Castell Y Mynach, Creigiau, Cardiff, CF15 9NU
Sold Sept 2022
£635,00012 Parc Castell Y Mynach, Creigiau, Cardiff, CF15 9NU
Sold Apr 2022
£355,000
Versus other Parc Castell Y Mynach homes
10 Parc Castell Y Mynach is notably below the street on price per m².
Price per m²
£1,172
Street avg £2,852
Floor Area
209 m²
Street avg 126 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
6.6 t/year
Street avg 4.7 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Tregarth Lodge — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







