9 Chester Close, St Mellons, Cardiff, CF3 0EP
About 9 Chester Close
9 Chester Close is a semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0EP). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1991-1995 and council tax band C. The latest certificate (March 2025) shows a C (score 73). The rating has held steady at C across 2 certificates since July 2012. Between certificates, window efficiency went from Average to Good; while hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 90).
Untraded for 18 years, with the last transfer in October 2008. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2000–2008, sale prices on this property compounded at 8.5% per year. Today's modelled estimate of £171,000 sits 103.6% above the 2008 sale of £84,000. On a £-per-square-foot basis, the last sale (£137/sq ft) was about 19.8% below the postcode norm.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Window efficiency improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
9 Chester Close 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
9 Chester Close's estimated value is more than triple its earliest registered sale price (2000).
£171,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.5% per year over 8 years.
£84,000
Growth on file: 8.5% per year over 8 years.
Sales timeline
2 October 2008Most recent
£84,000
+46.1%over 6 years28 March 2002
£57,500
+30.8%over 1 year30 October 2000
£43,950
Median price across the last 5 sales in CF3 0EP: £175,000 (2025–2017).
Nearby sales in CF3 0EP
12 Chester Close, St Mellons, Cardiff, CF3 0EP
Sold Feb 2025
£180,00014 Chester Close, St Mellons, Cardiff, CF3 0EP
Sold Feb 2024
£193,3257 Chester Close, St Mellons, Cardiff, CF3 0EP
Sold Nov 2022
£160,0005 Chester Close, St Mellons, Cardiff, CF3 0EP
Sold Jan 2020
£175,0004 Chester Close, St Mellons, Cardiff, CF3 0EP
Sold Apr 2017
£125,000
Versus other Chester Close homes
On floor area, 9 Chester Close runs well behind the street norm.
Price per m²
£1,474
Street avg £2,207
Floor Area
57 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.8 t/year
Similar properties nearby
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Coleford Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







