14 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
About 14 Parkstone Avenue
14 Parkstone Avenue is a three-bedroom semi-detached house in Old St. Mellons, Cardiff, Cardiff (CF3 5TY). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (July 2021) shows a C (score 71). When first surveyed in September 2015 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Good and window efficiency went from Average to Good; while lighting dropped from Good to Average. The recommended improvements would push it to B (score 85). Our model identifies extension potential, subject to local planning policy.
2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1996–2021, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £245,000 is 18.1% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£224/sq ft) was about 29.6% above the typical sold price in the postcode. Last sale on file: £207,500 in December 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Outside
- ParkingOff road
Building
- Extension potentialPossible
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Cavity wall insulation installed
Roof insulation improved
Low energy lighting percentage decreased
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Planning history
14 Parkstone Avenue has an approved rear extension on the planning record.
2 applications on record at 14 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
- Feb 2010ExtensionFullOutcome in report
TWO AND SINGLE STOREY REAR EXTENSION AND SINGLE STOREY FRONT EXTENSION
- Reference
- 09/02145/E
- More recent applications — locked
- ExtensionJun 2010Decision
Unlock 14 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full
- The 1 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has grown by over 3x since 1996.
£245,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 26 years.
£207,500
Growth on file: 5.5% per year over 26 years.
Sales timeline
3 December 2021Most recent
£207,500
+107.6%over 19 years8 November 2002
£99,950
+92.2%over 6 years31 March 1996
£52,000
Median price across the last 5 sales in CF3 5TY: £175,000 (2024–2012).
Nearby sales in CF3 5TY
15 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Dec 2024
£341,00012 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Apr 2019
£175,00016 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Sept 2016
£190,00011 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Sept 2014
£175,00010 Parkstone Avenue, Old St Mellons, Cardiff, CF3 5TY
Sold Aug 2012
£150,000
Versus other Parkstone Avenue homes
On price per m², 14 Parkstone Avenue stands well clear of the street.
Price per m²
£2,413
Street avg £1,980
Floor Area
86 m²
Street avg 103 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.7 t/year
Street avg 3.7 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.







