27 Duffryn Avenue, Cardiff, CF23 6LE
About 27 Duffryn Avenue
27 Duffryn Avenue is a four-bedroom detached house in Cardiff (CF23 6LE). It has a recorded floor area of 185 m² (around 1991 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (November 2018) shows a C (score 74). When first surveyed in September 2015 the rating was E, the property has climbed 2 bands since. The recommended improvements would push it to B (score 83).
At 185 m² the property is well over the postcode median (102 m² across 6 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. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Across 2016–2019, sale prices on this property compounded at 16.8% per year. Today's modelled estimate of £791,000 is 35.2% above the 2019 sale price. Last sale on file: £585,000 in July 2019.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageYes
Building
- RefurbishedYes
Energy performance
27 Duffryn Avenue ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
More low energy lighting installed
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Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
2 applications on record at 27 Duffryn Avenue, Cardiff, CF23 6LE
- Jul 2016ExtensionFullOutcome in report
Extension: Two storey · Side of property
DEMOLITION OF SINGLE STOREY GARAGE, CONSTRUCTION OF TWO STOREY SIDE EXTENSION AND TWO STOREY REAR EXTENSION AND LOFT EXTENSION
- Documents
- 13 docs on file
- Reference
- 16/00950/DCH
- More recent applications — locked
- DemolitionSept 2016Decision
Unlock 27 Duffryn Avenue, Cardiff, CF23 6LE'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- Every decision — granted, refused or withdrawn (2 on record)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 24 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
27 Duffryn Avenue valuation sits well clear of the typical sold price in this postcode.
£791,000
Modelled from EPC, postcode comparables and a sale-price growth of 16.8% per year over 3 years.
£585,000
Growth on file: 16.8% per year over 3 years.
Sales timeline
1 July 2019Most recent
£585,000
+67.1%over 3 years10 March 2016
£350,000
Median price across the last 5 sales in CF23 6LE: £365,000 (2023–2016).
Nearby sales in CF23 6LE
Versus other Duffryn Avenue homes
27 Duffryn Avenue outperforms the street on epc rating by a wide margin.
Price per m²
£3,162
Street avg £3,371
Floor Area
185 m²
Street avg 131 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.8 t/year
Street avg 6.1 t/year
Similar properties nearby
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Duffryn Avenue — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







