23, Celyn Avenue, Cardiff occupies a 329 m² plot as recorded by HM Land Registry.

Of the 18 other houses in this postcode, 17 have recorded plot sizes, and this one ranks as the 3rd largest.

23, Celyn Avenue, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 Sep 2020.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

23, Celyn Avenue, Cardiff last changed hands on 19th March 2021, selling for £415,000. 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 0.5% since March 2021.

Land Registry records and our Estate Agent network show 167 sales of comparable properties within 640 metres of 23, Celyn Avenue, Cardiff since 2016.

Most recently, 10, Padarn Close, Cardiff, CF23 6ER, a freehold house, sold at £480,000 on the 12th December 2025.

Read more about house prices in CF23.

• 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 Oct 2024£392,700 | 3 Bed House14, Crystal Avenue, Cardiff, CF23 5QJ14, Crystal Avenue, Cardiff, CF23 5QJ
• Sold Jul 2024£445,000 | 4 Bed House3, Llyn Close, Cardiff, CF23 6LG3, Llyn Close, Cardiff, CF23 6LG
• Sold Jun 2024£456,500 | 4 Bed House35, Mountbatten Close, Cardiff, CF23 5QG35, Mountbatten Close, Cardiff, CF23 5QG
• Sold Feb 2024£375,000 | 4 Bed House30, Celyn Avenue, Cardiff, CF23 6EN30, Celyn Avenue, Cardiff, CF23 6EN
• Sold Sep 2023£550,000 | 4 Bed House66, Lakeside Drive, Cardiff, CF23 6DG66, Lakeside Drive, Cardiff, CF23 6DG
• Sold Jul 2023£440,000 | 4 Bed House15, Duffryn Avenue, Cardiff, CF23 6LE15, Duffryn Avenue, Cardiff, CF23 6LE
• Sold Jun 2023£405,000 | 4 Bed House24, Mountbatten Close, Cardiff, CF23 5QH24, Mountbatten Close, Cardiff, CF23 5QH
• Sold Apr 2023£390,000 | 3 Bed House55, Celyn Avenue, Cardiff, CF23 6EJ55, Celyn Avenue, Cardiff, CF23 6EJ
• Sold Dec 2022£475,000 | 4 Bed House52, Celyn Avenue, Cardiff, CF23 6EP52, Celyn Avenue, Cardiff, CF23 6EP
• Sold Jul 2022£345,000 | 4 Bed House21, Mountbatten Close, Cardiff, CF23 5QG21, Mountbatten Close, Cardiff, CF23 5QG
• Sold Aug 2021£330,500 | 4 Bed House24, Carnegie Drive, Cardiff, CF23 6DH24, Carnegie Drive, Cardiff, CF23 6DH
• Sold Mar 2021£380,000 | 4 Bed House3, Padarn Close, Cardiff, CF23 6ER3, Padarn Close, Cardiff, CF23 6ER
• Sold Aug 2019£377,500 | 4 Bed House49, Ogwen Drive, Cardiff, CF23 6LJ49, Ogwen Drive, Cardiff, CF23 6LJ
• Sold Jan 2019£385,000 | 3 Bed House12, Padarn Close, Cardiff, CF23 6ER12, Padarn Close, Cardiff, CF23 6ER
• Sold Nov 2017£350,000 | 4 Bed House37, Celyn Avenue, Cardiff, CF23 6EH37, Celyn Avenue, Cardiff, CF23 6EH
• Sold May 2016£337,000 | 4 Bed House41, Celyn Avenue, Cardiff, CF23 6EH41, Celyn Avenue, Cardiff, CF23 6EH
• Sold Apr 2016£320,000 | 3 Bed House26, Padarn Close, Cardiff, CF23 6ER26, Padarn Close, Cardiff, CF23 6ER
• Sold Apr 2016£370,000 | 4 Bed House33, Celyn Avenue, Cardiff, CF23 6EH33, Celyn Avenue, Cardiff, CF23 6EH

Our analysis of the public data ranks 23, Celyn Avenue, Cardiff as the 37th largest and the 29th most expensive of the 148 addresses on Celyn Avenue, Cardiff, CF23.

Against the CF23 postcode district average, it is £97k more expensive than the typical property.

• Heath High Level

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  500 m away
• Heath Low Level

  |

  600 m away
• Ty Glas

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  1.7 km away

Environment Agency data suggests this area has a Very Low risk of flooding.