The Grainhouse, Began Road, Old St Mellons, Cardiff, CF3 6XJ
About The Grainhouse
The Grainhouse is a detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6XJ). It has a recorded floor area of 176 m² (around 1894 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (August 2015) shows a C (score 72). The recommended improvements would lift it to A (score 94), a 2-band jump. The latest certificate is from August 2015, so improvements made since then won't be reflected.
At 176 m² the property is well over the postcode median (107 m² across 8 EPCs), placing it in the larger end of the local stock. Across 2007–2023, sale prices on this property compounded at 3.9% per year. On a £-per-square-foot basis, the last sale (£425/sq ft) was about 145.5% above the typical sold price in the postcode. Sold June 2023 for £805,000.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 11 Aug 2025
EPC Rating
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Planning history
The Grainhouse 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 The Grainhouse was the highest on Land Registry record across the postcode.
£782,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 16 years.
£805,000
Growth on file: 3.9% per year over 16 years.
Sales timeline
22 June 2023Most recent
£805,000
+34.2%over 7 years24 March 2016
£600,000
+37.9%over 8 years10 May 2007
£435,000
Median price across the last 5 sales in CF3 6XJ: £410,000 (2024–2022).
Nearby sales in CF3 6XJ
Little Orchard, Began Road, Old St Mellons, Cardiff, CF3 6XJ
Sold Jul 2024
£395,000The Cottage, Began Road, Old St Mellons, Cardiff, CF3 6XJ
Sold May 2024
£412,500Long Mynd, Began Road, Old St Mellons, Cardiff, CF3 6XJ
Sold Mar 2023
£410,000Hascosay, Began Road, Old St Mellons, Cardiff, CF3 6XJ
Sold Dec 2022
£350,000Tudor Lodge, Began Road, Old St Mellons, Cardiff, CF3 6XJ
Sold Aug 2022
£725,000
Versus other Began Road homes
Price per m² for The Grainhouse runs comfortably ahead of the street norm.
Price per m²
£4,574
Street avg £2,304
Floor Area
176 m²
Street avg 145 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
4.4 t/year
Street avg 5.2 t/year
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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
0.3 km
Tyrwinch Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







