12a, Chartley Close, St Mellons, Cardiff, CF3 0SD
About 12a
12a is an end-of-terrace house in St. Mellons, Cardiff, Cardiff (CF3 0SD). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1991-1995 and council tax band C. The latest certificate (August 2016) shows a C (score 69), just inside the C band. The recommended improvements would push it to B (score 84).
Held since March 2001 — that's 25 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £203,000 sits 298.8% above the 2001 sale of £50,900. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 54.7% below the postcode norm.
Energy performance
EPC Rating
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Planning history
12a 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
12a's estimated value is more than triple its earliest registered sale price (2001).
£203,000
Modelled from EPC, postcode comparables.
£50,900
Recorded with HM Land Registry.
Sales timeline
29 March 2001Most recent
£50,900
Median price across the last 5 sales in CF3 0SD: £172,000 (2022–2019).
Nearby sales in CF3 0SD
9 Chartley Close, St Mellons, Cardiff, CF3 0SD
Sold Mar 2022
£198,0004 Chartley Close, St Mellons, Cardiff, CF3 0SD
Sold Sept 2021
£176,0001 Chartley Close, St Mellons, Cardiff, CF3 0SD
Sold Nov 2020
£166,0008 Chartley Close, St Mellons, Cardiff, CF3 0SD
Sold Mar 2019
£167,00015 Chartley Close, St Mellons, Cardiff, CF3 0SD
Sold Jul 2018
£153,000
Versus other Chartley Close homes
12a is notably below the street on price per m².
Price per m²
£808
Street avg £2,173
Floor Area
63 m²
Street avg 64 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.5 t/year
Similar properties nearby
1 Bulrush Close, St Mellons
CF3 0AZ
1 Blaina Close, St Mellons
CF3 0EB
1 Caraway Close, St Mellons
CF3 0NF
1 Cathcob Close, St Mellons
CF3 0AH
1 Broadwell Close, St Mellons
CF3 0HU
1 Abernethy Close, St Mellons
CF3 0SB
1 Ashfield Court, St Mellons
CF3 0AE
1 Caradoc Close, St Mellons
CF3 0LQ
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
0.0 km
Sandbrook Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







