Our Data Sources
20, Duffryn Avenue, Cardiff has 21 entries in the Land Registry, most recently in August 2021 and a single entry in the EPC database dated April 2021.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 20, Duffryn Avenue, Cardiff, we estimate a market value of £511,865 and a rental value of £1,827 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £453,366 and £1,618 per month respectively.
Plot Size
HM Land Registry records the plot of land for 20, Duffryn Avenue, Cardiff as measuring 290 m2.
That makes it the 18th largest plot in the postcode, where all 18 other houses have recorded plot data.
Energy Efficiency
20, Duffryn Avenue, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 08 Apr 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 20, Duffryn Avenue, Cardiff completed on 20th August 2021 at £385,000 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 10.5% over the period since August 2021.
- Sold Aug 2021£385,000
- Sold Dec 1999£87,000
Similar Properties Sold Nearby
Since 2016 79 properties similar to 20, Duffryn Avenue, Cardiff have sold within a radius of 630 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 28th October 2025, was 57, Celyn Avenue, Cardiff, CF23 6EJ, a freehold house which sold for £490,000.
Read more about house prices in CF23.
- Sold Oct 2025£490,000 | 4 Bed House57, Celyn Avenue, Cardiff, CF23 6EJ57, Celyn Avenue, Cardiff, CF23 6EJ
- Sold Sep 2024£395,000 | 3 Bed House101, Ogwen Drive, Cardiff, CF23 6LJ101, Ogwen Drive, Cardiff, CF23 6LJ
- Sold Dec 2023£450,000 | 3 Bed House24, Pennant Crescent, Cardiff, CF23 6LN24, Pennant Crescent, Cardiff, CF23 6LN
- Sold Oct 2023£525,000 | 4 Bed House18, Pennant Crescent, Cardiff, CF23 6LN18, Pennant Crescent, Cardiff, CF23 6LN
- Sold Jul 2023£440,000 | 4 Bed House15, Duffryn Avenue, Cardiff, CF23 6LE15, Duffryn Avenue, Cardiff, CF23 6LE
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 £470,896, ranging from £386,260 to £599,983.
- 18 Duffryn Avenue
3 Bed House | 9 m | Est. Value: £460,612
- 3 Llyn Close
4 Bed House | 24 m | Est. Value: £453,491
- 24 Duffryn Avenue
3 Bed House | 24 m | Est. Value: £482,211
- 101 Ogwen Drive
3 Bed House | 37 m | Est. Value: £423,781
- 21 Duffryn Avenue
4 Bed House | 38 m | Est. Value: £516,522
Location Comparison
Of the 52 addresses on Duffryn Avenue, Cardiff, CF23, 20, Duffryn Avenue, Cardiff comes out as the 39th largest and the 26th most expensive in our analysis of the public data.
It is also £125k 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.
