According to data from HM Land Registry, 17, Knowbury Avenue, Penarth sits on a plot of 593 m².

We have plot size data on 24 out of 24 other houses in the postcode and 17, Knowbury Avenue, Penarth sits on the 10th largest plot.

17, Knowbury Avenue, Penarth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 13 Nov 2013.

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

According to HM Land Registry, 17, Knowbury Avenue, Penarth was last sold on 25th March 2013 for £430,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since March 2013, the market for similar properties has risen by 26.8%.

• Sold Mar 2013£430,000

According to the Land Registry and our network of Estate Agents, there have been 76 sales of properties similar to 17, Knowbury Avenue, Penarth within a radius of 1.3 kilometres since 2007.

The most recent example is 5, Caynham Avenue, Penarth, CF64 5RR, a freehold house which sold for £847,000 on the 30th April 2026.

Read more about house prices in CF64.

• Sold Apr 2026£847,000 | 4 Bed House5, Caynham Avenue, Penarth, CF64 5RR5, Caynham Avenue, Penarth, CF64 5RR
• Sold Mar 2026£780,000 | 5 Bed House194, Lavernock Road, Penarth, CF64 5UP194, Lavernock Road, Penarth, CF64 5UP
• Sold Jan 2026£740,000 | 5 Bed House121, Westbourne Road, Penarth, CF64 5BR121, Westbourne Road, Penarth, CF64 5BR
• Sold Oct 2025£755,000 | 5 Bed House7, The Paddocks, Penarth, CF64 5BW7, The Paddocks, Penarth, CF64 5BW
• Sold Feb 2025£830,000 | 5 Bed House76, Westbourne Road, Penarth, CF64 3HB76, Westbourne Road, Penarth, CF64 3HB
• Sold Sep 2024£845,000 | 5 Bed House58, Westbourne Road, Penarth, CF64 3HB58, Westbourne Road, Penarth, CF64 3HB
• Sold Jun 2024£660,000 | 5 Bed House10, Robinswood Close, Penarth, CF64 3JG10, Robinswood Close, Penarth, CF64 3JG
• Sold Dec 2023£1,000,000 | 5 Bed House21, Whitcliffe Drive, Penarth, CF64 5RY21, Whitcliffe Drive, Penarth, CF64 5RY
• Sold Jul 2022£935,000 | 5 Bed House24, Forrest Road, Penarth, CF64 5BT24, Forrest Road, Penarth, CF64 5BT
• Sold Mar 2022£820,000 | 5 Bed House10, Cherry Close, Penarth, CF64 5BX10, Cherry Close, Penarth, CF64 5BX
• Sold Feb 2022£787,500 | 5 Bed House16, Maillards Haven, Penarth, CF64 5RF16, Maillards Haven, Penarth, CF64 5RF
• Sold Dec 2020£738,000 | 4 Bed House6, Channel View, Penarth, CF64 5DQ6, Channel View, Penarth, CF64 5DQ
• Sold Aug 2020£691,000 | 5 Bed House149, Lavernock Road, Penarth, CF64 3RN149, Lavernock Road, Penarth, CF64 3RN
• Sold Apr 2020£600,000 | 5 Bed House5, The Paddocks, Penarth, CF64 5BW5, The Paddocks, Penarth, CF64 5BW
• Sold Sep 2018£765,000 | 4 Bed House6, Maillards Haven, Penarth, CF64 5RF6, Maillards Haven, Penarth, CF64 5RF
• Sold Aug 2017£665,000 | 5 Bed House180, Westbourne Road, Penarth, CF64 5BR180, Westbourne Road, Penarth, CF64 5BR
• Sold Jul 2016£685,000 | 5 Bed House162, Westbourne Road, Penarth, CF64 5BQ162, Westbourne Road, Penarth, CF64 5BQ
• Sold Jun 2015£595,000 | 5 Bed House3, Forrest Road, Penarth, CF64 5BT3, Forrest Road, Penarth, CF64 5BT
• Sold Dec 2011£550,000 | 5 Bed House9, Whitcliffe Drive, Penarth, CF64 5RY9, Whitcliffe Drive, Penarth, CF64 5RY
• Sold Nov 2007£306,500 | 5 Bed House19, Stanton Way, Penarth, CF64 5RQ19, Stanton Way, Penarth, CF64 5RQ

Knowbury Avenue, Penarth, CF64 has a total of 24 addresses. According to our analysis of all the public data, 17, Knowbury Avenue, Penarth is the 5th largest and the 4th most expensive property on the street.

When compared to the postcode district it is £444k more expensive than the average property in CF64.

• Penarth

  |

  1.7 km away
• Dingle Road

  |

  2.2 km away
• Eastbrook

  |

  2.9 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.