3 Granville Avenue, Cardiff, CF5 1BW
About 3 Granville Avenue
3 Granville Avenue is a four-bedroom semi-detached house in Cardiff (CF5 1BW). It has a recorded floor area of 132 m² (around 1421 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (January 2025) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since January 2009. Between certificates, roof efficiency went from Very Poor to Very Good, window efficiency went from Poor to Average and lighting went from Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would lift it to B (score 81), a 2-band jump. Records show the property has been extended at some point in its history.
A recent sale: £590,000 in May 2025. One planning record on file: an extension approved in 2013. Past consents include an extension, meaningful when judging how the property has evolved. At 132 m² it's 22.2% larger than the typical home in the postcode (108 m² median across 17 EPCs). Across 2001–2025, sale prices on this property compounded at 6.1% per year. On a £-per-square-foot basis, the last sale (£415/sq ft) was about 84% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms4
- Bathrooms2
Building
- Previously extendedYes
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Roof insulation improved
More low energy lighting installed
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
3 Granville Avenue has an approved side and rear extension on the planning record.
1 application on record at 3 Granville Avenue, Cardiff, CF5 1BW
- Dec 2013ExtensionFullOutcome in report
Extension: Side and rear of property
ERECTION OF TWO STOREY SIDE AND REAR EXTENSION AND SINGLE STOREY REAR EXTENSION
- Documents
- 6 docs on file
- Reference
- 13/02050/DCH
Unlock 3 Granville Avenue, Cardiff, CF5 1BW's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 2 notable nearby
- The 6 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 3 Granville Avenue was the highest on Land Registry record across the postcode.
£633,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 24 years.
£590,000
Growth on file: 6.1% per year over 24 years.
Sales timeline
18 May 2025Most recent
£590,000
+136.0%over 15 years8 July 2009
£250,000
+79.9%over 8 years19 January 2001
£139,000
Median price across the last 5 sales in CF5 1BW: £460,000 (2022–2015).
Nearby sales in CF5 1BW
Versus other Granville Avenue homes
Price per m² for 3 Granville Avenue runs comfortably ahead of the street norm.
Price per m²
£4,470
Street avg £2,869
Floor Area
132 m²
Street avg 108 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.9 t/year
Street avg 4.9 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
The Insole — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







