5 Duncan Close, St Mellons, Cardiff, CF3 1NP
About 5 Duncan Close
5 Duncan Close is a three-bedroom semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 1NP). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (July 2017) shows a C (score 74). The recommended improvements would push it to B (score 89). The home occupies a cul-de-sac position.
Across 2006–2017, sale prices on this property compounded at 2.8% per year. Today's modelled estimate of £262,000 sits 54.1% above the 2017 sale of £170,000. On a £-per-square-foot basis, the last sale (£229/sq ft) was about 15.1% above the typical sold price in the postcode. On the market in September 2017 and unlisted since — roughly 9 years.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Open-plan layoutYes
Outside
- Private gardenYes
- DrivewayYes
- Cul-de-sacYes
Building
- RefurbishedYes
Energy performance
EPC Rating
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Planning history
5 Duncan Close has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
5 Duncan Close valuation sits well clear of the typical sold price in this postcode.
£262,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.8% per year over 11 years.
£170,000
Growth on file: 2.8% per year over 11 years.
Sales timeline
28 September 2017Most recent
£170,000
+36.0%over 11 years27 July 2006
£125,000
Median price across the last 5 sales in CF3 1NP: £245,000 (2025–2024).
Nearby sales in CF3 1NP
1 Duncan Close, St Mellons, Cardiff, CF3 1NP
Sold Oct 2025
£240,0002 Duncan Close, St Mellons, Cardiff, CF3 1NP
Sold Aug 2025
£250,00023 Duncan Close, St Mellons, Cardiff, CF3 1NP
Sold Aug 2025
£245,00010 Duncan Close, St Mellons, Cardiff, CF3 1NP
Sold Jul 2025
£265,00019 Duncan Close, St Mellons, Cardiff, CF3 1NP
Sold Sept 2024
£212,500
Versus other Duncan Close homes
Price per m²
£2,464
Street avg £2,847
Floor Area
69 m²
Street avg 65 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.0 t/year
Street avg 2.2 t/year
Similar properties nearby
1 Duncan Close, St Mellons
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1 Meadvale Court, Meadvale Road
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1 Dovey Close, Rumney
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1 Abergele Road, Rumney
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1 Llanina Grove, Rumney
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1 Canopus Close, St Mellons
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1 Heol Newydd
CF3 1DW
1 Bro Athro
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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
Ty Coch Court — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







