Ty Treharne, Groeswen Road, Groeswen, Cardiff, CF15 7UT
About Ty Treharne
Ty Treharne is a detached house in Groeswen, Cardiff, Cardiff (CF15 7UT). It has a recorded floor area of 218 m² (around 2347 sq ft). The latest certificate (June 2020) shows a C (score 79), near the top of the C band. The recommended improvements would push it to B (score 81). Main heating runs on lpg.
Today's modelled estimate of £620,000 is 48.3% below the 2024 sale of £1,199,300, 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 (£511/sq ft) was about 147.3% above the typical sold price in the postcode. At 218 m² the property is well over the postcode median (145 m² across 8 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. 9 planning records sit against the property, 7 approved, 0 refused. The record references listed-building consent, which constrain future alterations. Last sale on file: £1,199,300 in January 2024.
Energy performance
Ty Treharne ranks among the most efficient homes in the postcode for energy use.
EPC Rating
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Planning history
Ty Treharne has a listed-building consent on record — alterations to a listed property are tightly controlled.
9 applications on record at Ty Treharne, Groeswen Road, Groeswen, Cardiff, CF15 7UT
- Jul 2009Demolition And RebuildHeritageOutcome in report
Demolish all buildings on site
- Documents
- 1 doc on file
- Reference
- 09/0046/CON
- More recent applications — locked
- AmendmentDec 2018Decision
- ConditionsJun 2018Decision
+ 6 more applications in the report
Unlock Ty Treharne, Groeswen Road, Groeswen, Cardiff, CF15 7UT's full planning history
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- Every decision — granted, refused or withdrawn (9 on record)
- All 9 applications on this property in full, plus 1 notable nearby
- The 75 documents, officer reports & conditions
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Sales history & valuation
Ty Treharne valuation sits well clear of the typical sold price in this postcode.
£620,000
Modelled from EPC, postcode comparables.
£1,199,300
Recorded with HM Land Registry.
Sales timeline
12 January 2024Most recent
£1,199,300
Median price across the last 4 sales in CF15 7UT: £311,500 (2021–2011).
Versus other Groeswen Road homes
On price per m², Ty Treharne stands well clear of the street.
Price per m²
£5,501
Street avg £2,146
Floor Area
218 m²
Street avg 147 m²
CO₂ Emissions
2.6 t/year
Street avg 10.7 t/year
Years Held
2 years
Street avg 10 years
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
1.0 km
Brigham Court — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







