Our Data Sources
20, Duncan Close, Cardiff has no recent1 records in the Land Registry and a single entry in the EPC database dated January 2024.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 20, Duncan Close, Cardiff would be worth £218,521, with a potential rental value of £1,243 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £193,547, with a rental value of £1,101 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
20, Duncan Close, Cardiff occupies a 155 m2 plot as recorded by HM Land Registry.
All 26 other houses in this postcode have recorded plot sizes, and this one ranks as the 24th largest.
Energy Efficiency
20, Duncan Close, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 Jan 2024.
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
20, Duncan Close, Cardiff last changed hands on 20th April 2005, selling for £112,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
- Sold Apr 2005£112,000
- Sold Apr 2000£45,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 17 sales of comparable properties within 510 metres of 20, Duncan Close, Cardiff since 2007.
Most recently, 1, Canopus Close, Cardiff, CF3 1NR, a freehold house, sold at £180,000 on the 12th December 2025.
Read more about house prices in CF3.
- Sold Dec 2025£180,000 | 2 Bed House1, Canopus Close, Cardiff, CF3 1NR1, Canopus Close, Cardiff, CF3 1NR
- Sold Nov 2025£220,000 | 2 Bed House26, Canopus Close, Cardiff, CF3 1NR26, Canopus Close, Cardiff, CF3 1NR
- Sold Apr 2024£188,000 | 2 Bed House3, Duncan Close, Cardiff, CF3 1NP3, Duncan Close, Cardiff, CF3 1NP
- Sold Feb 2024£205,000 | 3 Bed House43, Meadvale Road, Cardiff, CF3 1UG43, Meadvale Road, Cardiff, CF3 1UG
- Sold Jan 2023£169,000 | 2 Bed House24, Canopus Close, Cardiff, CF3 1NR24, Canopus Close, Cardiff, CF3 1NR
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 £279,137, ranging from £208,115 to £514,727.
- 19 Duncan Close
3 Bed House | 4 m | Est. Value: £245,894
- 21 Duncan Close
2 Bed House | 9 m | Est. Value: £208,115
- 22 Duncan Close
2 Bed House | 13 m | Est. Value: £209,503
- 18 Duncan Close
3 Bed House | 23 m | Est. Value: £233,078
- 23 Duncan Close
3 Bed House | 23 m | Est. Value: £253,553
Location Comparison
Our analysis of the public data ranks 20, Duncan Close, Cardiff as the 25th largest and the 25th most expensive of the 26 addresses on Duncan Close, St. Mellons, Cardiff, CF3.
Against the CF3 postcode district average, it is £50k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Heath High Level|4.7 km away
- Heath Low Level|4.8 km away
- Llanishen|4.9 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












