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. 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
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 £1,085 · 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.
£591,000
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).
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The neighbourhood at a glance
Crime
6/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.







