Ty Isaf Farm, Ty Newydd, Castle Road, Tongwynlais, Cardiff, CF15 7JQ
About Ty Isaf Farm
Ty Isaf Farm is a detached house in Tongwynlais, Cardiff, Cardiff (CF15 7JQ). It has a recorded floor area of 161 m² (around 1733 sq ft). The latest certificate (August 2020) returns a high B (score 91), putting the home a stone's throw from an A rating. The recommended improvements would push it to A (score 92). Main heating runs on oil.
At 161 m² the property is well over the postcode median (96 m² across 24 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £741,000 is 20.5% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£355/sq ft) was about 71.8% above the typical sold price in the postcode. Most recent transfer: February 2021 at £615,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
Ty Isaf Farm ranks among the most efficient homes in the postcode for energy use.
EPC Rating
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Planning history
Ty Isaf 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 Ty Isaf Farm was the highest on Land Registry record across the postcode.
£741,000
Modelled from EPC, postcode comparables.
£615,000
Recorded with HM Land Registry.
Sales timeline
19 February 2021Most recent
£615,000
Median price across the last 5 sales in CF15 7JQ: £265,000 (2023–2022).
Nearby sales in CF15 7JQ
34 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Nov 2023
£325,0003 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Apr 2023
£265,0005 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Mar 2023
£289,0001 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Jun 2022
£252,5009 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Dec 2020
£289,000
Versus other Castle Road homes
On epc rating, Ty Isaf Farm stands well clear of the street.
Price per m²
£3,820
Street avg £2,917
Floor Area
161 m²
Street avg 129 m²
CO₂ Emissions
1.9 t/year
Street avg 4.9 t/year
Years Held
5 years
Street avg 9 years
Similar properties nearby
1 Cules Terrace, Taffs Well
CF15 7QJ
1 Birch Hill, Tongwynlais
CF15 7LL
1 Clos Llewellyn, Taffs Well
CF15 7AT
1 Forest Cottage, Castle Road, Tongwynlais
CF15 7JR
1 Brynau Road, Taffs Well
CF15 7SA
1 Cross Street, Tongwynlais
CF15 7NQ
1 Alfred Terrace, Taffs Well
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1 Bute Villa, Taffs Well
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Catherine Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







