11 Aster Close, St Mellons, Cardiff, CF3 0JB
About 11 Aster Close
11 Aster Close is a semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0JB). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (April 2024) shows a C (score 71). The rating has held steady at C across 2 certificates since November 2021. Between certificates, window efficiency went from Average to Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to B (score 86).
At 74 m² it's 28.7% larger than the typical home in the postcode (58 m² median across 8 EPCs). Across 1998–2022, sale prices on this property compounded at 5.6% per year. Today's modelled estimate of £278,000 is 35% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£259/sq ft) was about 51.1% above the typical sold price in the postcode. Last sale on file: £206,000 in February 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
EPC Rating
Certificate validity
Valid until 21 April 2034
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
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Planning history
11 Aster Close 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
11 Aster Close has more than tripled in price since its earliest registered sale in 1998.
£278,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 24 years.
£206,000
Growth on file: 5.6% per year over 24 years.
Sales timeline
22 February 2022Most recent
£206,000
+267.9%over 23 years14 May 1998
£56,000
Median price across the last 5 sales in CF3 0JB: £197,500 (2025–2019).
Nearby sales in CF3 0JB
1 Aster Close, St Mellons, Cardiff, CF3 0JB
Sold Nov 2025
£265,0002 Aster Close, St Mellons, Cardiff, CF3 0JB
Sold May 2023
£210,00012 Aster Close, St Mellons, Cardiff, CF3 0JB
Sold May 2021
£197,5009 Aster Close, St Mellons, Cardiff, CF3 0JB
Sold Feb 2020
£160,0007 Aster Close, St Mellons, Cardiff, CF3 0JB
Sold Apr 2019
£178,000
Versus other Aster Close homes
11 Aster Close is notably below the street on years held.
Price per m²
£2,784
Street avg £2,705
Floor Area
74 m²
Street avg 78 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
2.4 t/year
Street avg 2.8 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 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
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1 Chartley Close, St Mellons
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The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Kwik Save — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







