20 Old Hill, Old St Mellons, Cardiff, CF3 5SU
About 20 Old Hill
20 Old Hill is a detached house in Old St. Mellons, Cardiff, Cardiff (CF3 5SU). It has a recorded floor area of 124 m² (around 1335 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (July 2014) shows a C (score 72). When first surveyed in June 2014 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 84). The latest certificate is from July 2014, so improvements made since then won't be reflected.
At 124 m² the property is well over the postcode median (79 m² across 8 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs).
Energy performance
20 Old Hill's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 09 Jul 2024
EPC Rating
Certificate validity
Expired on 9 July 2024
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
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Planning history
20 Old Hill 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
20 Old Hill has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£368,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF3 5SU: £157,000 (2021–2007).
Nearby sales in CF3 5SU
6 Old Hill, Old St Mellons, Cardiff, CF3 5SU
Sold Oct 2021
£205,00017 Old Hill, Old St Mellons, Cardiff, CF3 5SU
Sold Apr 2018
£300,0003 Old Hill, Old St Mellons, Cardiff, CF3 5SU
Sold Apr 2011
£105,0007 Old Hill, Old St Mellons, Cardiff, CF3 5SU
Sold May 2009
£115,0008 Old Hill, Old St Mellons, Cardiff, CF3 5SU
Sold Dec 2007
£157,000
Versus other Old Hill homes
EPC Rating for 20 Old Hill runs comfortably ahead of the street norm.
EPC Rating
72 (C)
Street avg 61 (D)
Floor Area
124 m²
Street avg 90 m²
CO₂ Emissions
3.5 t/year
Street avg 3.9 t/year
Habitable Rooms
6 rooms
Street avg 5 rooms
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The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
The Mount — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







