20 Bryn Celyn, Cardiff, CF23 7EE
About 20 Bryn Celyn
20 Bryn Celyn is a three-bedroom end-of-terrace house in Cardiff (CF23 7EE). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (March 2025) shows a C (score 71). The rating has held steady at C across 3 certificates since November 2012. Between certificates, window efficiency went from Poor to Average; while wall efficiency dropped from Good to Poor. The recommended improvements would push it to B (score 86).
Across 2002–2015, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £198,000 sits 70.7% above the 2015 sale of £116,000. On a £-per-square-foot basis, the last sale (£124/sq ft) was about 56.7% above the typical sold price in the postcode. 11 years since the last transfer (November 2015).
What this property has
Inside
- Bedrooms3
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system changed
Windows upgraded, improving insulation
Wall insulation upgraded
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
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Planning history
20 Bryn Celyn 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
Sale price has at least doubled since 2002.
£198,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 14 years.
£116,000
Growth on file: 6.8% per year over 14 years.
Sales timeline
17 November 2015Most recent
£116,000
+5.5%over 10 years11 July 2005
£110,000
+134.3%over 3 years21 February 2002
£46,950
Median price across the last 5 sales in CF23 7EE: £150,000 (2023–2014).
Versus other Bryn Celyn homes
EPC Rating for 20 Bryn Celyn lags the street by a wide margin.
Price per m²
£1,333
Street avg £1,126
Floor Area
87 m²
Street avg 92 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.8 t/year
Street avg 2.5 t/year
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Pentwyn Leisure Centre — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







