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 £279,000 sits 74.4% 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This certificate is over 10 years old and is no longer valid.Expired 25 Jul 2022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
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.
£279,000
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: £215,000 (2025–2024).
Nearby sales in CF3 0PH
30 Aston Place, St Mellons, Cardiff, CF3 0PH
Sold Sept 2025
£285,00042 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
£315,0006 Aston Place, St Mellons, Cardiff, CF3 0PH
Sold Apr 2024
£215,000
Versus other Aston Place homes
Price per m² for 18 Aston Place lags the street by a wide margin.
Price per m²
£1,905
Street avg £2,307
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 Burreed Close
CF3 0RL
1 Brython Drive, St Mellons
CF3 0LR
1 Bassaleg Close, St Mellons
CF3 0HN
1 Alderwood Close, St Mellons
CF3 0BW
1 Aster Close, St Mellons
CF3 0JB
1 Bodnant Close, St Mellons
CF3 0JL
1 Brynmawr Close, St Mellons
CF3 0HJ
1 Chartley Close, St Mellons
CF3 0SD
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
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.







