Our Data Sources
21, Gwynant Crescent, Cardiff has a single entry in the Land Registry from June 2008 and a single entry in the EPC database dated September 2019.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate 21, Gwynant Crescent, Cardiff would be worth £490,166, with a potential rental value of £1,678 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £434,147, with a rental value of £1,486 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Gwynant Crescent, Cardiff occupies a 474 m2 plot as recorded by HM Land Registry.
Of the 33 other houses in this postcode, 27 have recorded plot sizes, and this one ranks as the 2nd largest.
Energy Efficiency
21, Gwynant Crescent, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Sep 2019.
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
21, Gwynant Crescent, Cardiff last changed hands on 27th June 2008, selling for £270,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 51.2% since June 2008.
- Sold Jun 2008£270,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 104 sales of comparable properties within 640 metres of 21, Gwynant Crescent, Cardiff since 2010.
Most recently, 1, Brynderwen Close, Cardiff, CF23 6BR, a freehold house, sold at £450,000 on the 8th May 2026.
Read more about house prices in CF23.
- Sold May 2026£450,000 | 4 Bed House1, Brynderwen Close, Cardiff, CF23 6BR1, Brynderwen Close, Cardiff, CF23 6BR
- Sold Dec 2025£480,000 | 3 Bed House10, Padarn Close, Cardiff, CF23 6ER10, Padarn Close, Cardiff, CF23 6ER
- Sold Oct 2025£490,000 | 4 Bed House57, Celyn Avenue, Cardiff, CF23 6EJ57, Celyn Avenue, Cardiff, CF23 6EJ
- Sold Sep 2025£495,000 | 4 Bed House14, Lomond Crescent, Cardiff, CF23 6ES14, Lomond Crescent, Cardiff, CF23 6ES
- Sold Sep 2024£410,000 | 4 Bed House88, Woolaston Avenue, Cardiff, CF23 6HA88, Woolaston Avenue, Cardiff, CF23 6HA
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 £377,446, ranging from £185,101 to £724,131.
- 23 Gwynant Crescent
3 Bed House | 6 m | Est. Value: £401,611
- 17 Gwynant Crescent
4 Bed House | 25 m | Est. Value: £427,045
- 27 Gwynant Crescent
4 Bed House | 26 m | Est. Value: £411,352
- 10 Gwynant Crescent
2 Bed Flat | 37 m | Est. Value: £197,677
- 12 Gwynant Crescent
2 Bed Flat | 37 m | Est. Value: £185,101
Location Comparison
Our analysis of the public data ranks 21, Gwynant Crescent, Cardiff as the 6th largest and the 2nd most expensive of the 44 addresses on Gwynant Crescent, Cardiff, CF23.
Against the CF23 postcode district average, it is £103k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Heath High Level|800 m away
- Heath Low Level|900 m away
- Ty Glas|1.9 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












