13 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF
About 13 Heol Bennett
13 Heol Bennett is a detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6AF). It has a recorded floor area of 184 m² (around 1981 sq ft). The latest certificate (January 2018) returns a high B (score 86), putting the home a stone's throw from an A rating. The recommended improvements would push it to A (score 93).
At 184 m² the property is well over the postcode median (102 m² across 54 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2018. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Last sold in February 2018, so it's been off the market for around 8 years. Today's modelled estimate of £609,000 is 36.9% above the 2018 sale price.
Energy performance
EPC Rating
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Planning history
13 Heol Bennett has an approved rear extension on the planning record.
1 application on record at 13 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF
- Jul 2018ConservatoryFullOutcome in report
Extension: Rear of property
CONSERVATORY TO REAR ELEVATION
Extension- Documents
- 7 docs on file
- Reference
- 18/01227/DCH
Unlock 13 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 7 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
13 Heol Bennett valuation sits well clear of the typical sold price in this postcode.
£609,000
Modelled from EPC, postcode comparables.
£444,995
Recorded with HM Land Registry.
Sales timeline
8 February 2018Most recent
£444,995
Median price across the last 5 sales in CF3 6AF: £468,995 (2025–2020).
Nearby sales in CF3 6AF
5 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF
Sold Mar 2025
£612,5001 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF
Sold Feb 2022
£510,00045 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF
Sold Mar 2021
£292,00079 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF
Sold Jul 2020
£377,00043 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF
Sold May 2019
£323,000
Versus other Heol Bennett homes
On floor area, 13 Heol Bennett stands well clear of the street.
Price per m²
£2,418
Street avg £2,805
Floor Area
184 m²
Street avg 114 m²
CO₂ Emissions
2.2 t/year
Street avg 1.6 t/year
Years Held
8 years
Street avg 8 years
Similar properties nearby
1 Heol Bennett, Old St Mellons
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1 Rhodfa Lewis, Old St Mellons
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1 New Park Cottages, Castleton
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1 Ruperra Close, Old St Mellons
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1 George Crescent, Old St Mellons
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1 Cefn Mably Park, Michaelston Y Fedw
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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
0.3 km
Heol Bennett — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







