HM Land Registry records the plot of land for 46, Castle Avenue, Penarth as measuring 292 m².

That makes it the 29th largest plot in the postcode, where 38 of the 40 other houses have recorded plot data.

46, Castle Avenue, Penarth has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 07 Jun 2016.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

Since 2007 79 properties similar to 46, Castle Avenue, Penarth have sold within a radius of 860 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 5th January 2026, was 7, Dowland Road, Penarth, CF64 3QX, a freehold house which sold for £430,000.

Read more about house prices in CF64.

• Sold Jan 2026£430,000 | 4 Bed House7, Dowland Road, Penarth, CF64 3QX7, Dowland Road, Penarth, CF64 3QX
• Sold Aug 2025£485,000 | 4 Bed House42, Purcell Road, Penarth, CF64 3QN42, Purcell Road, Penarth, CF64 3QN
• Sold Aug 2025£390,000 | 4 Bed House49, Dinas Road, Penarth, CF64 3PJ49, Dinas Road, Penarth, CF64 3PJ
• Sold May 2025£400,000 | 4 Bed House51, Purcell Road, Penarth, CF64 3QN51, Purcell Road, Penarth, CF64 3QN
• Sold Dec 2024£425,000 | 4 Bed House36, Dinas Road, Penarth, CF64 3PL36, Dinas Road, Penarth, CF64 3PL
• Sold May 2024£370,000 | 4 Bed House28, Castle Avenue, Penarth, CF64 3QS28, Castle Avenue, Penarth, CF64 3QS
• Sold Mar 2023£385,000 | 3 Bed House32, Beechwood Drive, Penarth, CF64 3QZ32, Beechwood Drive, Penarth, CF64 3QZ
• Sold Feb 2023£325,000 | 4 Bed House52, Castle Avenue, Penarth, CF64 3QS52, Castle Avenue, Penarth, CF64 3QS
• Sold Feb 2023£422,500 | 4 Bed House5, Purcell Road, Penarth, CF64 3QL5, Purcell Road, Penarth, CF64 3QL
• Sold Mar 2022£385,000 | 4 Bed House53, Purcell Road, Penarth, CF64 3QN53, Purcell Road, Penarth, CF64 3QN
• Sold Apr 2021£300,000 | 4 Bed House40, Purcell Road, Penarth, CF64 3QN40, Purcell Road, Penarth, CF64 3QN
• Sold Mar 2021£370,000 | 4 Bed House7, Purcell Road, Penarth, CF64 3QL7, Purcell Road, Penarth, CF64 3QL
• Sold Feb 2020£305,000 | 4 Bed House55, Purcell Road, Penarth, CF64 3QN55, Purcell Road, Penarth, CF64 3QN
• Sold Nov 2019£278,000 | 4 Bed House8, Sullivan Close, Penarth, CF64 3QR8, Sullivan Close, Penarth, CF64 3QR
• Sold Jul 2018£272,500 | 3 Bed House25, Purcell Road, Penarth, CF64 3QN25, Purcell Road, Penarth, CF64 3QN
• Sold Jul 2015£270,000 | 4 Bed House26, Castle Avenue, Penarth, CF64 3QS26, Castle Avenue, Penarth, CF64 3QS
• Sold May 2013£217,000 | 4 Bed House13, Sullivan Close, Penarth, CF64 3QR13, Sullivan Close, Penarth, CF64 3QR
• Sold Aug 2012£195,000 | 4 Bed House45, Sullivan Close, Penarth, CF64 3QR45, Sullivan Close, Penarth, CF64 3QR
• Sold Jul 2009£152,000 | 4 Bed House7, Sullivan Close, Penarth, CF64 3QR7, Sullivan Close, Penarth, CF64 3QR
• Sold Dec 2007£230,000 | 4 Bed House33, Sullivan Close, Penarth, CF64 3QR33, Sullivan Close, Penarth, CF64 3QR

Of the 81 addresses on Castle Avenue, Penarth, CF64, 46, Castle Avenue, Penarth comes out as the 18th largest and the 16th most expensive in our analysis of the public data.

It is also £10k more expensive than the average property across the CF64 district.

• Penarth

  |

  1.5 km away
• Dingle Road

  |

  1.8 km away
• Eastbrook

  |

  2.1 km away

The flood risk here is rated Very Low, based on Environment Agency data.