9 Coed Y Llyn, Radyr, Cardiff, CF15 8RF
About 9 Coed Y Llyn
9 Coed Y Llyn is a detached house in Radyr, Cardiff, Cardiff (CF15 8RF). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (June 2014) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 87), a 2-band jump. The latest certificate is from June 2014, so improvements made since then won't be reflected.
Across 1996–2014, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £332,000 sits 50.9% above the 2014 sale of £220,000. On a £-per-square-foot basis, the last sale (£372/sq ft) was about 101.6% above the typical sold price in the postcode. At 55 m² it sits well below the postcode median (113 m² across 6 EPCs), making it one of the more compact homes locally. Last changed hands 12 years ago, in August 2014.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 30 Jun 2024
EPC Rating
Certificate validity
Expired on 30 June 2024
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Planning history
9 Coed Y Llyn 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
Sale price has grown by over 3x since 1996.
£332,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 18 years.
£220,000
Growth on file: 6.4% per year over 18 years.
Sales timeline
7 August 2014Most recent
£220,000
+141.8%over 15 years21 July 1999
£91,000
+24.7%over 2 years12 December 1996
£73,000
Median price across the last 5 sales in CF15 8RF: £385,000 (2026–2017).
Nearby sales in CF15 8RF
2 Coed Y Llyn, Radyr, Cardiff, CF15 8RF
Sold Jan 2026
£405,0001 Coed Y Llyn, Radyr, Cardiff, CF15 8RF
Sold Sept 2023
£410,0005 Coed Y Llyn, Radyr, Cardiff, CF15 8RF
Sold Aug 2021
£325,00011 Coed Y Llyn, Radyr, Cardiff, CF15 8RF
Sold Jul 2018
£305,0008 Coed Y Llyn, Radyr, Cardiff, CF15 8RF
Sold Jan 2017
£385,000
Versus other Coed Y Llyn homes
9 Coed Y Llyn is notably below the street on floor area.
Price per m²
£4,000
Street avg £3,106
Floor Area
55 m²
Street avg 114 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
2.8 t/year
Street avg 4.4 t/year
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Coed y Llyn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







