1, Knowbury Avenue, Penarth occupies a 711 m² plot as recorded by HM Land Registry.

All 24 other houses in this postcode have recorded plot sizes, and this one ranks as the largest.

1, Knowbury Avenue, Penarth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 29 Sep 2021.

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

1, Knowbury Avenue, Penarth last changed hands on 25th January 2022, selling for £625,000. 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 dropped by 23.6% since January 2022.

• Sold Jan 2022£625,000

Land Registry records and our Estate Agent network show 119 sales of comparable properties within 1.2 kilometres of 1, Knowbury Avenue, Penarth since 2012.

Most recently, 15, Forrest Road, Penarth, CF64 5BT, a freehold house, sold at £850,000 on the 22nd August 2025.

Read more about house prices in CF64.

• Sold Aug 2025£850,000 | 4 Bed House15, Forrest Road, Penarth, CF64 5BT15, Forrest Road, Penarth, CF64 5BT
• Sold Jul 2025£570,000 | 4 Bed House11, Forrest Road, Penarth, CF64 5BT11, Forrest Road, Penarth, CF64 5BT
• Sold Jun 2025£707,000 | 4 Bed House177, Plymouth Road, Penarth, CF64 5DG177, Plymouth Road, Penarth, CF64 5DG
• Sold Aug 2023£885,000 | 4 Bed House3, Maillards Haven, Penarth, CF64 5RF3, Maillards Haven, Penarth, CF64 5RF
• Sold Apr 2022£585,000 | 4 Bed House114, Lavernock Road, Penarth, CF64 3RP114, Lavernock Road, Penarth, CF64 3RP
• Sold Mar 2022£678,950 | 4 Bed House1, Birch Lane, Penarth, CF64 5BY1, Birch Lane, Penarth, CF64 5BY
• Sold Jun 2021£515,000 | 4 Bed House14, Birch Lane, Penarth, CF64 5BY14, Birch Lane, Penarth, CF64 5BY
• Sold Mar 2021£650,000 | 4 Bed House8, Stanton Way, Penarth, CF64 5RQ8, Stanton Way, Penarth, CF64 5RQ
• Sold Jan 2020£550,000 | 4 Bed House11, The Paddocks, Penarth, CF64 5BW11, The Paddocks, Penarth, CF64 5BW
• Sold Aug 2019£515,000 | 4 Bed House1, Rowan Close, Penarth, CF64 5BU1, Rowan Close, Penarth, CF64 5BU
• Sold Aug 2018£510,000 | 4 Bed House7, Cherry Close, Penarth, CF64 5BX7, Cherry Close, Penarth, CF64 5BX
• Sold Jul 2018£550,000 | 4 Bed House2, Rowan Close, Penarth, CF64 5BU2, Rowan Close, Penarth, CF64 5BU
• Sold Oct 2017£430,000 | 4 Bed House4, Rowan Close, Penarth, CF64 5BU4, Rowan Close, Penarth, CF64 5BU
• Sold Aug 2017£520,000 | 4 Bed House25, Caynham Avenue, Penarth, CF64 5RR25, Caynham Avenue, Penarth, CF64 5RR
• Sold Jul 2017£687,500 | 4 Bed House6, Whitcliffe Drive, Penarth, CF64 5RY6, Whitcliffe Drive, Penarth, CF64 5RY
• Sold Feb 2017£540,000 | 4 Bed House12, The Paddocks, Penarth, CF64 5BW12, The Paddocks, Penarth, CF64 5BW
• Sold Sep 2014£467,500 | 4 Bed House7, Knowbury Avenue, Penarth, CF64 5RX7, Knowbury Avenue, Penarth, CF64 5RX
• Sold Apr 2014£450,000 | 4 Bed House2, Knowbury Avenue, Penarth, CF64 5RX2, Knowbury Avenue, Penarth, CF64 5RX
• Sold Aug 2013£460,000 | 4 Bed House20, Caynham Avenue, Penarth, CF64 5RR20, Caynham Avenue, Penarth, CF64 5RR
• Sold Mar 2012£338,000 | 4 Bed House18, Caynham Avenue, Penarth, CF64 5RR18, Caynham Avenue, Penarth, CF64 5RR

Our analysis of the public data ranks 1, Knowbury Avenue, Penarth as the 17th largest and the 15th most expensive of the 24 addresses on Knowbury Avenue, Penarth, CF64.

Against the CF64 postcode district average, it is £306k more expensive than the typical property.

• Penarth

  |

  1.7 km away
• Dingle Road

  |

  2.2 km away
• Eastbrook

  |

  2.9 km away

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