70, St. Marys Avenue, Barry occupies a 112 m² plot as recorded by HM Land Registry.

Of the 42 other houses in this postcode, 37 have recorded plot sizes, and this one ranks as the 10th largest.

70, St. Marys Avenue, Barry has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 19 Feb 2026.

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

70, St. Marys Avenue, Barry last changed hands on 28th May 2010, selling for £101,000. 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 60.4% since May 2010.

• Sold May 2010£101,000

Land Registry records and our Estate Agent network show 217 sales of comparable properties within 440 metres of 70, St. Marys Avenue, Barry since 2022.

Most recently, 33, Station Street, Barry, CF63 4LW, a freehold house, sold at £205,000 on the 30th April 2026.

Read more about house prices in CF63.

• Sold Apr 2026£205,000 | 4 Bed House33, Station Street, Barry, CF63 4LW33, Station Street, Barry, CF63 4LW
• Sold Mar 2026£220,000 | 4 Bed House22, Station Street, Barry, CF63 4LY22, Station Street, Barry, CF63 4LY
• Sold Jan 2026£190,000 | 4 Bed House69, Castleland Street, Barry, CF63 4LL69, Castleland Street, Barry, CF63 4LL
• Sold Dec 2025£158,000 | 4 Bed House31, St. Marys Avenue, Barry, CF63 4LT31, St. Marys Avenue, Barry, CF63 4LT
• Sold Nov 2025£205,000 | 4 Bed House65, St. Marys Avenue, Barry, CF63 4LT65, St. Marys Avenue, Barry, CF63 4LT
• Sold Sep 2025£210,000 | 4 Bed House18, Station Street, Barry, CF63 4LY18, Station Street, Barry, CF63 4LY
• Sold Jun 2025£230,000 | 4 Bed House89, St. Marys Avenue, Barry, CF63 4LT89, St. Marys Avenue, Barry, CF63 4LT
• Sold Jun 2025£255,000 | 4 Bed House87, Castleland Street, Barry, CF63 4LL87, Castleland Street, Barry, CF63 4LL
• Sold Jun 2025£236,750 | 4 Bed House92, Castleland Street, Barry, CF63 4LP92, Castleland Street, Barry, CF63 4LP
• Sold May 2025£190,000 | 3 Bed House61, Station Street, Barry, CF63 4LW61, Station Street, Barry, CF63 4LW
• Sold Mar 2025£195,000 | 4 Bed House77, St. Marys Avenue, Barry, CF63 4LT77, St. Marys Avenue, Barry, CF63 4LT
• Sold Feb 2025£174,300 | 4 Bed House90, Castleland Street, Barry, CF63 4LP90, Castleland Street, Barry, CF63 4LP
• Sold Oct 2024£190,000 | 4 Bed House85, St. Marys Avenue, Barry, CF63 4LT85, St. Marys Avenue, Barry, CF63 4LT
• Sold Aug 2024£180,000 | 4 Bed House24, Castleland Street, Barry, CF63 4LP24, Castleland Street, Barry, CF63 4LP
• Sold Jun 2024£226,000 | 4 Bed House42, Station Street, Barry, CF63 4LY42, Station Street, Barry, CF63 4LY
• Sold Apr 2024£240,000 | 4 Bed House63, Castleland Street, Barry, CF63 4LL63, Castleland Street, Barry, CF63 4LL
• Sold Apr 2023£180,000 | 4 Bed House53, Station Street, Barry, CF63 4LW53, Station Street, Barry, CF63 4LW
• Sold Dec 2022£200,000 | 4 Bed House89, Castleland Street, Barry, CF63 4LL89, Castleland Street, Barry, CF63 4LL
• Sold Oct 2022£230,000 | 4 Bed House35, Station Street, Barry, CF63 4LW35, Station Street, Barry, CF63 4LW
• Sold Jan 2022£206,000 | 4 Bed House72, St. Marys Avenue, Barry, CF63 4LS72, St. Marys Avenue, Barry, CF63 4LS

Our analysis of the public data ranks 70, St. Marys Avenue, Barry as the 20th largest and the 17th most expensive of the 100 addresses on St. Marys Avenue, Barry, CF63.

Against the CF63 postcode district average, it is £10k more expensive than the typical property.

• Barry Docks

  |

  200 m away
• Cadoxton

  |

  1.3 km away
• Barry Island

  |

  1.5 km away

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