12 Alderwood Close, St Mellons, Cardiff, CF3 0BW
About 12 Alderwood Close
12 Alderwood Close is a four-bedroom detached house in St. Mellons, Cardiff, Cardiff (CF3 0BW). It has a recorded floor area of 144 m² (around 1550 sq ft). The latest certificate (March 2016) returns a high B (score 85), putting the home a stone's throw from an A rating. The recommended improvements would push it to A (score 93). The latest certificate is from March 2016, so improvements made since then won't be reflected.
At 144 m² the property is well over the postcode median (67 m² across 7 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 86% of similar EPCs). Across 2016–2024, sale prices on this property compounded at 3.7% per year. On a £-per-square-foot basis, the last sale (£323/sq ft) was about 71.6% above the typical sold price in the postcode. Last sale on file: £500,000 in June 2024.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- EnsuiteYes
- StudyYes
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Mar 2026
EPC Rating
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Planning history
12 Alderwood 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
Latest sale on 12 Alderwood Close was the highest on Land Registry record across the postcode.
£530,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.7% per year over 8 years.
£500,000
Growth on file: 3.7% per year over 8 years.
Sales timeline
13 June 2024Most recent
£500,000
+33.3%over 8 years9 June 2016
£375,000
Median price across the last 5 sales in CF3 0BW: £167,000 (2016–2009).
Nearby sales in CF3 0BW
4 Alderwood Close, St Mellons, Cardiff, CF3 0BW
Sold Nov 2016
£207,00011 Alderwood Close, St Mellons, Cardiff, CF3 0BW
Sold May 2016
£437,0002 Alderwood Close, St Mellons, Cardiff, CF3 0BW
Sold Dec 2011
£135,0001 Alderwood Close, St Mellons, Cardiff, CF3 0BW
Sold Sept 2011
£167,0006 Alderwood Close, St Mellons, Cardiff, CF3 0BW
Sold Nov 2009
£135,000
Versus other Alderwood Close homes
12 Alderwood Close outperforms the street on price per m² by a wide margin.
Price per m²
£3,472
Street avg £2,100
Floor Area
144 m²
Street avg 81 m²
CO₂ Emissions
1.9 t/year
Street avg 3.0 t/year
Years Held
2 years
Street avg 16 years
Similar properties nearby
1 Cleddau Close, St Mellons
CF3 0SG
1 Brython Drive, St Mellons
CF3 0LR
1 Chervil Close, St Mellons
CF3 0NL
1 Aston Place, St Mellons
CF3 0PH
1 Cathcob Close, St Mellons
CF3 0AH
1 Aster Close, St Mellons
CF3 0JB
1 Chartley Close, St Mellons
CF3 0SD
1 Ashdown Close, St Mellons
CF3 0ER
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
0.1 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.







