1 Breach Cottages, Bonvilston, Cardiff, CF5 6TU
About 1 Breach Cottages
1 Breach Cottages is a semi-detached house in Bonvilston, Cardiff, Cardiff (CF5 6TU). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1900-1929 and council tax band F. The latest certificate (August 2021) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2019. Between certificates, window efficiency went from Average to Good. The recommended improvements would lift it to A (score 102), a 3-band jump.
Across 2002–2022, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £614,000 is 10.6% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£482/sq ft) was about 92.7% above the typical sold price in the postcode. Last sale on file: £555,000 in October 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 14 August 2031
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
1 Breach Cottages 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
1 Breach Cottages has more than tripled in price since its earliest registered sale in 2002.
£614,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 20 years.
£555,000
Growth on file: 5.8% per year over 20 years.
Sales timeline
17 October 2022Most recent
£555,000
+215.3%over 20 years27 June 2002
£176,000
Median price across the last 4 sales in CF5 6TU: £368,750 (2025–2006).
Nearby sales in CF5 6TU
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The neighbourhood at a glance
Crime
426/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Sycamore Cross — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







