11 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
About 11 Parkstone Avenue
11 Parkstone Avenue is a semi-detached house in Old St. Mellons, Cardiff, Cardiff (CF3 5TY). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (January 2015) shows a C (score 71). When first surveyed in March 2010 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Very Poor to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 85). The latest certificate is from January 2015, so improvements made since then won't be reflected.
Across 2010–2014, sale prices on this property compounded at 6.2% per year. Today's modelled estimate of £254,000 is 45.1% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£173/sq ft) was about 19% above the typical sold price in the postcode. Last sold in September 2014, so it's been off the market for around 12 years.
Energy performance
11 Parkstone Avenue'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This certificate is over 10 years old and is no longer valid.Expired 06 Jan 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Hot water system upgraded
Single glazing replaced with double or better glazing
Heating controls upgraded for better temperature management
Window efficiency improved
Cavity wall insulation installed
More low energy lighting installed
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Planning history
11 Parkstone Avenue 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
11 Parkstone Avenue valuation sits well clear of the typical sold price in this postcode.
£254,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.2% per year over 4 years.
£175,000
Growth on file: 6.2% per year over 4 years.
Sales timeline
25 September 2014Most recent
£175,000
+27.7%over 4 years19 August 2010
£137,000
Median price across the last 5 sales in CF3 5TY: £190,000 (2024–2012).
Nearby sales in CF3 5TY
15 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Dec 2024
£341,00014 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Dec 2021
£207,50012 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Apr 2019
£175,00016 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Sept 2016
£190,00010 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Aug 2012
£150,000
Versus other Parkstone Avenue homes
Price per m² for 11 Parkstone Avenue lags the street by a wide margin.
Price per m²
£1,862
Street avg £2,118
Floor Area
94 m²
Street avg 102 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.0 t/year
Street avg 3.6 t/year
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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
0.2 km
Llaneirwg Way — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







