3 Leon Avenue, Taffs Well, Cardiff, CF15 7RG
About 3 Leon Avenue
3 Leon Avenue is a three-bedroom semi-detached house in Taffs Well, Cardiff, Cardiff (CF15 7RG). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (June 2017) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 77).
It hasn't traded since November 2004, a hold of 22 years that's notably long for the area. Across 2002–2004, sale prices on this property compounded at 4% per year. Today's modelled estimate of £269,000 sits 133.9% above the 2004 sale of £115,000. On a £-per-square-foot basis, the last sale (£115/sq ft) was about 48.1% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenRear
- ParkingYes
Energy performance
EPC Rating
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Planning history
2 applications on record at 3 Leon Avenue, Taffs Well, Cardiff, CF15 7RG
- Jun 2019Loft ConversionOutlineOutcome in report
Loft conversion with rear dormer and hip to gable extension.
Extension- Documents
- 6 docs on file
- Reference
- 19/0460/09
- More recent applications — locked
- Loft ConversionJun 2019Decision
Unlock 3 Leon Avenue, Taffs Well, Cardiff, CF15 7RG's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 1 notable nearby
- The 12 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
3 Leon Avenue valuation sits well clear of the typical sold price in this postcode.
£269,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 2 years.
£115,000
Growth on file: 4.0% per year over 2 years.
Sales timeline
26 November 2004Most recent
£115,000
+9.5%over 2 years11 August 2002
£105,000
Median price across the last 4 sales in CF15 7RG: £197,500 (2025–2016).
Versus other Leon Avenue homes
3 Leon Avenue is notably below the street on price per m².
Price per m²
£1,237
Street avg £2,648
Floor Area
93 m²
Street avg 87 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.7 t/year
Street avg 4.4 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Taffs Well Railway Station — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







