Old Wallace Farm, Dyffryn, Cardiff, CF5 6SU
About Old Wallace Farm
Old Wallace Farm is a detached house in Dyffryn, Cardiff, Cardiff (CF5 6SU). It has a recorded floor area of 279 m² (around 3003 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (May 2013) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2013. The recommended improvements would lift it to A (score 95), a 3-band jump. Main heating runs on oil. The latest certificate is from May 2013, so improvements made since then won't be reflected.
Today's modelled estimate of £1,080,000 is 56.9% below the 2023 sale of £2,506,500, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£835/sq ft) was about 220.7% above the typical sold price in the postcode. At 279 m² the property is well over the postcode median (174 m² across 15 EPCs), placing it in the larger end of the local stock. Last sale on file: £2,506,500 in June 2023.
Energy performance
Old Wallace Farm's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 May 2023
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
Old Wallace Farm 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 Old Wallace Farm was the highest on Land Registry record across the postcode.
£1,080,000
Modelled from EPC, postcode comparables.
£2,506,500
Recorded with HM Land Registry.
Sales timeline
11 June 2023Most recent
£2,506,500
Median price across the last 5 sales in CF5 6SU: £315,000 (2024–2020).
Nearby sales in CF5 6SU
The White House, Dyffryn, Cardiff, CF5 6SU
Sold Oct 2024
£315,000Ty Nant, Dyffryn, Cardiff, CF5 6SU
Sold Jan 2024
£253,3341 Home Farm Bungalow, Dyffryn, Cardiff, CF5 6SU
Sold Jan 2022
£499,000Canoldir, Dyffryn, Cardiff, CF5 6SU
Sold Oct 2021
£960,000Nant Bran Cottage, Dyffryn, Cardiff, CF5 6SU
Sold Jun 2020
£200,000
Versus the street
On price per m², Old Wallace Farm stands well clear of the street.
Price per m²
£8,984
Street avg £3,410
Floor Area
279 m²
Street avg 194 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
11.0 t/year
Street avg 7.7 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
1.8 km
Ameila Trust Farm — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







