HM Land Registry records the plot of land for 23, Mountjoy Avenue, Penarth as measuring 300 m².

That makes it the 3rd largest plot in the postcode, where 24 of the 25 other houses have recorded plot data.

23, Mountjoy Avenue, Penarth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 12 Apr 2021.

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

The most recent sale of 23, Mountjoy Avenue, Penarth completed on 28th June 2021 at £367,500 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have dropped by 6.9% over the period since June 2021.

• Sold Jun 2021£367,500

Since 2016 178 properties similar to 23, Mountjoy Avenue, Penarth have sold within a radius of 560 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 16th January 2026, was 7, Hastings Place, Penarth, CF64 2TD, a freehold house which sold for £395,000.

Read more about house prices in CF64.

• Sold Jan 2026£395,000 | 3 Bed House7, Hastings Place, Penarth, CF64 2TD7, Hastings Place, Penarth, CF64 2TD
• Sold Jan 2026£515,000 | 3 Bed House68, Wordsworth Avenue, Penarth, CF64 2RN68, Wordsworth Avenue, Penarth, CF64 2RN
• Sold Sep 2025£440,000 | 3 Bed House1, Coleridge Avenue, Penarth, CF64 2SP1, Coleridge Avenue, Penarth, CF64 2SP
• Sold Jun 2025£550,000 | 3 Bed House20, Coleridge Avenue, Penarth, CF64 2SP20, Coleridge Avenue, Penarth, CF64 2SP
• Sold Jun 2025£499,950 | 3 Bed House39, Mountjoy Avenue, Penarth, CF64 2SY39, Mountjoy Avenue, Penarth, CF64 2SY
• Sold May 2025£470,000 | 3 Bed House20, Mountjoy Crescent, Penarth, CF64 2SZ20, Mountjoy Crescent, Penarth, CF64 2SZ
• Sold Feb 2025£425,000 | 3 Bed House45, Mountjoy Avenue, Penarth, CF64 2SY45, Mountjoy Avenue, Penarth, CF64 2SY
• Sold Jan 2025£587,500 | 3 Bed House4, Countess Place, Penarth, CF64 3UJ4, Countess Place, Penarth, CF64 3UJ
• Sold Oct 2024£531,000 | 3 Bed House21, Milton Road, Penarth, CF64 2SW21, Milton Road, Penarth, CF64 2SW
• Sold Aug 2024£443,000 | 3 Bed House11, Mountjoy Crescent, Penarth, CF64 2SZ11, Mountjoy Crescent, Penarth, CF64 2SZ
• Sold Jul 2024£525,000 | 3 Bed House76, Wordsworth Avenue, Penarth, CF64 2RN76, Wordsworth Avenue, Penarth, CF64 2RN
• Sold Jun 2024£450,000 | 3 Bed House33, Mountjoy Avenue, Penarth, CF64 2SY33, Mountjoy Avenue, Penarth, CF64 2SY
• Sold Dec 2023£550,000 | 3 Bed House72, Wordsworth Avenue, Penarth, CF64 2RN72, Wordsworth Avenue, Penarth, CF64 2RN
• Sold Jun 2023£432,500 | 3 Bed House35, Mountjoy Avenue, Penarth, CF64 2SY35, Mountjoy Avenue, Penarth, CF64 2SY
• Sold Dec 2022£460,000 | 3 Bed House118, Wordsworth Avenue, Penarth, CF64 2RQ118, Wordsworth Avenue, Penarth, CF64 2RQ
• Sold May 2022£399,950 | 3 Bed House5, Mountjoy Place, Penarth, CF64 2TB5, Mountjoy Place, Penarth, CF64 2TB
• Sold Sep 2021£360,000 | 3 Bed House78, Wordsworth Avenue, Penarth, CF64 2RN78, Wordsworth Avenue, Penarth, CF64 2RN
• Sold Mar 2021£340,000 | 3 Bed House9, Hastings Place, Penarth, CF64 2TD9, Hastings Place, Penarth, CF64 2TD
• Sold Feb 2021£320,000 | 3 Bed House43, Mountjoy Avenue, Penarth, CF64 2SY43, Mountjoy Avenue, Penarth, CF64 2SY
• Sold Jan 2016£285,000 | 3 Bed House25, Mountjoy Avenue, Penarth, CF64 2SY25, Mountjoy Avenue, Penarth, CF64 2SY

Of the 44 addresses on Mountjoy Avenue, Penarth, CF64, 23, Mountjoy Avenue, Penarth comes out as the 18th largest and the 16th most expensive in our analysis of the public data.

It is also £31k more expensive than the average property across the CF64 district.

• Dingle Road

  |

  700 m away
• Cogan

  |

  1.0 km away
• Penarth

  |

  1.0 km away

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