Our Data Sources
18, Duffryn Avenue, Cardiff has 31 entries in the Land Registry, most recently in April 2014 and a single entry in the EPC database dated May 2012.
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 18, Duffryn Avenue, Cardiff, we estimate a market value of £483,643 and a rental value of £1,780 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £428,369 and £1,577 per month respectively.
Plot Size
HM Land Registry records the plot of land for 18, Duffryn Avenue, Cardiff as measuring 473 m2.
That makes it the 8th largest plot in the postcode, where all 18 other houses have recorded plot data.
Energy Efficiency
18, Duffryn Avenue, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 May 2012.
The property is not 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 18, Duffryn Avenue, Cardiff completed on 29th April 2014 at £235,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 26.0% over the period since April 2014.
- Sold Apr 2014£235,000
- Sold Mar 2006£210,000
- Sold Jul 1997£88,500
Similar Properties Sold Nearby
Since 2011 55 properties similar to 18, 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 28th July 2025, was 61, Ogwen Drive, Cardiff, CF23 6LJ, a freehold house which sold for £399,950.
Read more about house prices in CF23.
- Sold Jul 2025£399,950 | 3 Bed House61, Ogwen Drive, Cardiff, CF23 6LJ61, Ogwen Drive, Cardiff, CF23 6LJ
- 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 Apr 2023£390,000 | 3 Bed House55, Celyn Avenue, Cardiff, CF23 6EJ55, Celyn Avenue, Cardiff, CF23 6EJ
- Sold Mar 2023£382,500 | 3 Bed House18, Leven Close, Cardiff, CF23 6DN18, Leven Close, Cardiff, CF23 6DN
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 £487,422, ranging from £386,260 to £721,834.
- 20 Duffryn Avenue
3 Bed House | 9 m | Est. Value: £487,491
- 3 Llyn Close
4 Bed House | 24 m | Est. Value: £453,491
- 24 Duffryn Avenue
3 Bed House | 34 m | Est. Value: £482,211
- 2 Llyn Close
4 Bed House | 36 m | Est. Value: £475,605
- 21 Duffryn Avenue
4 Bed House | 37 m | Est. Value: £516,522
Location Comparison
Of the 52 addresses on Duffryn Avenue, Cardiff, CF23, 18, Duffryn Avenue, Cardiff comes out as the 48th largest and the 35th most expensive in our analysis of the public data.
It is also £98k 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.












