12 Mayfield Avenue, Cardiff, CF5 1AN
About 12 Mayfield Avenue
12 Mayfield Avenue is a three-bedroom mid-terrace house in Cardiff (CF5 1AN). It has a recorded floor area of 125 m² (around 1345 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (July 2013) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 82), a 2-band jump. The latest certificate is from July 2013, so improvements made since then won't be reflected.
Across 2000–2013, sale prices on this property compounded at 8.7% per year. Today's modelled estimate of £393,000 sits 67.2% above the 2013 sale of £235,000. On the market in September 2013 and unlisted since — roughly 13 years. Across the public record there are 4 sales, relatively high churn for a single property. At 125 m² it's 25% larger than the typical home in the postcode (100 m² median across 15 EPCs).
What this property has
Inside
- Bedrooms3
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This certificate is over 10 years old and is no longer valid.Expired 02 Jul 2023
EPC Rating
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Planning history
12 Mayfield Avenue has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
12 Mayfield Avenue has more than tripled in price since its earliest registered sale in 2000.
£393,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.7% per year over 13 years.
£235,000
Growth on file: 8.7% per year over 13 years.
Sales timeline
29 September 2013Most recent
£235,000
+40.7%over 9 years9 October 2003
£167,000
+47.1%over 2 years26 July 2001
£113,500
+48.4%over 1 year9 April 2000
£76,500
Median price across the last 5 sales in CF5 1AN: £400,000 (2025–2023).
Nearby sales in CF5 1AN
Versus other Mayfield Avenue homes
Price per m² for 12 Mayfield Avenue lags the street by a wide margin.
Price per m²
£1,880
Street avg £3,023
Floor Area
125 m²
Street avg 105 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.1 t/year
Street avg 4.4 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Windway Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







