9 Potter Street, Old St Mellons, Cardiff, CF3 6AR
About 9 Potter Street
9 Potter Street is a three-bedroom end-of-terrace house in Old St. Mellons, Cardiff, Cardiff (CF3 6AR). It has a recorded floor area of 69 m² (around 743 sq ft). The latest certificate (June 2019) returns a B (score 82), comfortably above the UK average. The recommended improvements would push it to A (score 95).
A recent sale: £254,750 in December 2025. Across 2019–2025, sale prices on this property compounded at 4.8% per year.
What this property has
Inside
- Bedrooms3
- Bathrooms2
Outside
- Private gardenYes
- ParkingOff road
Energy performance
9 Potter Street's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 20 June 2029
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Planning history
9 Potter Street 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
£268,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.8% per year over 6 years.
£254,750
Growth on file: 4.8% per year over 6 years.
Sales timeline
12 December 2025Most recent
£254,750
+34.1%over 6 years5 September 2019
£190,000
Median price across the last 5 sales in CF3 6AR: £260,000 (2025–2024).
Nearby sales in CF3 6AR
14 Potter Street, Old St Mellons, Cardiff, CF3 6AR
Sold Aug 2025
£260,00011 Potter Street, Old St Mellons, Cardiff, CF3 6AR
Sold Feb 2025
£227,0008 Potter Street, Old St Mellons, Cardiff, CF3 6AR
Sold Oct 2024
£229,95021 Potter Street, Old St Mellons, Cardiff, CF3 6AR
Sold Jul 2024
£381,50020 Potter Street, Old St Mellons, Cardiff, CF3 6AR
Sold Feb 2024
£338,000
Versus other Potter Street homes
On years held, 9 Potter Street runs well behind the street norm.
Price per m²
£3,692
Street avg £3,465
Floor Area
69 m²
Street avg 70 m²
CO₂ Emissions
1.2 t/year
Street avg 1.2 t/year
Years Held
1 years
Street avg 5 years
Similar properties nearby
1 Bridge Terrace, Michaelston Y Fedw
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1 Potter Street, Old St Mellons
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1 Heol Swatridge, Old St Mellons
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1 Rogers Avenue, Old St Mellons
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1 Church Road, Old St Mellons
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1 Clos Thomas, Old St Mellons
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1 Began Road, Old St Mellons
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1 Rhodfa Hughes, Old St Mellons
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The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.0 km
Mortimer Avenue — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







