Our Data Sources
40, Duffryn Avenue, Cardiff has 2 entries in the Land Registry, most recently in February 2024 and a single entry in the EPC database dated January 2019.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 40, Duffryn Avenue, Cardiff, we estimate a market value of £630,474 and a rental value of £2,030 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £558,420 and £1,798 per month respectively.
Plot Size
HM Land Registry records the plot of land for 40, Duffryn Avenue, Cardiff as measuring 507 m2.
That makes it the 4th largest plot in the postcode, where all 18 other houses have recorded plot data.
Energy Efficiency
40, Duffryn Avenue, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 08 Jan 2019.
The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 40, Duffryn Avenue, Cardiff completed on 2nd February 2024 at £680,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have dropped by 12.0% over the period since February 2024.
- Sold Feb 2024£680,000
- Sold Aug 2007£425,000
Similar Properties Sold Nearby
Since 2017 125 properties similar to 40, Duffryn Avenue, Cardiff have sold within a radius of 640 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 27th November 2025, was 12, Lakeside Drive, Cardiff, CF23 6DD, a freehold house which sold for £585,000.
Read more about house prices in CF23.
- Sold Nov 2025£585,000 | 4 Bed House12, Lakeside Drive, Cardiff, CF23 6DD12, Lakeside Drive, Cardiff, CF23 6DD
- Sold Aug 2025£605,000 | 4 Bed House10, Lakeside Drive, Cardiff, CF23 6DD10, Lakeside Drive, Cardiff, CF23 6DD
- Sold Apr 2025£660,000 | 4 Bed House11, Padarn Close, Cardiff, CF23 6ER11, Padarn Close, Cardiff, CF23 6ER
- Sold Mar 2024£600,000 | 4 Bed House9, Padarn Close, Cardiff, CF23 6ER9, Padarn Close, Cardiff, CF23 6ER
- Sold Jul 2023£713,000 | 4 Bed House7, Pendraw Place, Cardiff, CF23 6JS7, Pendraw Place, Cardiff, CF23 6JS
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £722,200, ranging from £439,711 to £1,293,702.
- 38 Duffryn Avenue
5 Bed House | 13 m | Est. Value: £708,341
- 39 Llandennis Avenue
5 Bed House | 32 m | Est. Value: £1,028,379
- 41 Duffryn Avenue
5 Bed House | 34 m | Est. Value: £760,845
- 37 Llandennis Avenue
5 Bed House | 34 m | Est. Value: £1,293,702
- 20 Nant-Fawr Crescent
4 Bed House | 40 m | Est. Value: £557,634
Location Comparison
Of the 52 addresses on Duffryn Avenue, Cardiff, CF23, 40, Duffryn Avenue, Cardiff comes out as the 19th largest and the 15th most expensive in our analysis of the public data.
It is also £238k more expensive than the average property across the CF23 district.
More reading links
Schools Nearby
Public Transport Nearby
- Heath High Level|800 m away
- Heath Low Level|800 m away
- Ty Glas|1.9 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
