18 Aston Place, St Mellons, Cardiff, CF3 0PH
About 18 Aston Place
18 Aston Place is a detached house in St. Mellons, Cardiff, Cardiff (CF3 0PH). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (July 2012) shows a C (score 73). Earlier certificates rated it B (May 2012); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 81). The latest certificate is from July 2012, so improvements made since then won't be reflected.
Across 1998–2012, sale prices on this property compounded at 5.4% per year. Today's modelled estimate of £298,000 sits 86.3% above the 2012 sale of £160,000. Last sold in August 2012, so it's been off the market for around 14 years. Across the public record there are 4 sales, relatively high churn for a single property. At 84 m² it's 16.7% larger than the typical home in the postcode (72 m² median across 31 EPCs).
Energy performance
18 Aston Place'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This certificate is over 10 years old and is no longer valid.Expired 25 Jul 2022
EPC Rating
Certificate validity
Expired on 25 July 2022
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Loft insulation upgraded to recommended levels
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Planning history
18 Aston Place has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
18 Aston Place has more than doubled in price since the earliest registered sale in 1998.
£298,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 14 years.
£160,000
Growth on file: 5.4% per year over 14 years.
Sales timeline
30 August 2012Most recent
£160,000
5 September 2005
£159,950
+96.3%over 4 years3 May 2001
£81,500
+8.0%over 2 years1 July 1998
£75,450
Median price across the last 5 sales in CF3 0PH: £268,000 (2025–2024).
Nearby sales in CF3 0PH
30 Aston Place, St Mellons, Cardiff, CF3 0PH
Sold Sept 2025
£285,00044 Aston Place, St Mellons, Cardiff, CF3 0PH
Sold Aug 2025
£268,00042 Aston Place, St Mellons, Cardiff, CF3 0PH
Sold Dec 2024
£190,00026 Aston Place, St Mellons, Cardiff, CF3 0PH
Sold Nov 2024
£202,5008 Aston Place, St Mellons, Cardiff, CF3 0PH
Sold Jul 2024
£315,000
Versus other Aston Place homes
EPC Rating for 18 Aston Place runs comfortably ahead of the street norm.
Price per m²
£1,905
Street avg £2,372
Floor Area
84 m²
Street avg 74 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
2.5 t/year
Street avg 2.7 t/year
Similar properties nearby
1 Aster Close, St Mellons
CF3 0JB
1 Bassaleg Close, St Mellons
CF3 0HN
1 Burreed Close
CF3 0RL
1 Brown Court, St Mellons
CF3 0RP
1 Aston Place, St Mellons
CF3 0PH
1 Brython Drive, St Mellons
CF3 0LR
1 Brynmawr Close, St Mellons
CF3 0HJ
1 Birkdale Close, St Mellons
CF3 0LF
The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Matthysens Way — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







