Penny School Cottage, Dyffryn, Cardiff, CF5 6SU
About Penny School Cottage
Penny School Cottage is a detached house in Dyffryn, Cardiff, Cardiff (CF5 6SU). It has a recorded floor area of 153 m² (around 1647 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (January 2025) shows an F (score 26), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 67), a 2-band jump. Main heating runs on lpg.
Untraded for 27 years, with the last transfer in March 1999. 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 £641,000 sits 327.3% above the 1999 sale of £150,000. On a £-per-square-foot basis, the last sale (£91/sq ft) was about 69% below the postcode norm. At 153 m² it's 19.5% smaller than the typical home in the postcode (190 m² median across 15 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs).
Energy performance
Penny School Cottage's carbon output runs well above what efficient homes in the postcode produce.
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 £1,155 · Includes VAT
Planning history
Penny School Cottage 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
Penny School Cottage's modelled value sits at over four times its earliest registered sale price (1999).
£641,000
Modelled from EPC, postcode comparables.
£150,000
Recorded with HM Land Registry.
Sales timeline
22 March 1999Most recent
£150,000
Median price across the last 5 sales in CF5 6SU: £499,000 (2024–2021).
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
£253,334Old Wallace Farm, Dyffryn, Cardiff, CF5 6SU
Sold Jun 2023
£2,506,5001 Home Farm Bungalow, Dyffryn, Cardiff, CF5 6SU
Sold Jan 2022
£499,000Canoldir, Dyffryn, Cardiff, CF5 6SU
Sold Oct 2021
£960,000
Versus the street
Penny School Cottage is notably below the street on price per m².
Price per m²
£980
Street avg £4,410
Floor Area
153 m²
Street avg 202 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
7.1 t/year
Street avg 8.0 t/year
Similar properties nearby
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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.







