9, St. Mellons Road, Cardiff occupies a 1,043 m² plot as recorded by HM Land Registry.

Of the 42 other houses in this postcode, 28 have recorded plot sizes, and this one ranks as the 8th largest.

9, St. Mellons Road, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 31 Oct 2013.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

9, St. Mellons Road, Cardiff last changed hands on 5th February 2010, selling for £265,000. 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 78.8% since February 2010.

• Sold Feb 2010£265,000

Land Registry records and our Estate Agent network show 172 sales of comparable properties within 2.0 kilometres of 9, St. Mellons Road, Cardiff since 2014.

Most recently, 122, Marshfield Road, Cardiff, CF3 2TU, a freehold house, sold at £364,000 on the 2nd December 2025.

Read more about house prices in CF3.

• Sold Dec 2025£364,000 | 3 Bed House122, Marshfield Road, Cardiff, CF3 2TU122, Marshfield Road, Cardiff, CF3 2TU
• Sold Oct 2025£387,500 | 4 Bed House53, Mallards Reach, Cardiff, CF3 2NN53, Mallards Reach, Cardiff, CF3 2NN
• Sold May 2025£475,000 | 4 Bed House3, The Shires, Cardiff, CF3 2AW3, The Shires, Cardiff, CF3 2AW
• Sold Feb 2025£125,000 | 4 Bed House5, St. Mellons Road, Cardiff, CF3 2TX5, St. Mellons Road, Cardiff, CF3 2TX
• Sold Feb 2025£410,000 | 3 Bed House75, Mallards Reach, Cardiff, CF3 2NN75, Mallards Reach, Cardiff, CF3 2NN
• Sold Jan 2025£340,000 | 4 Bed House34, St. Mellons Road, Cardiff, CF3 2TX34, St. Mellons Road, Cardiff, CF3 2TX
• Sold Jan 2025£384,000 | 4 Bed House56, Mallards Reach, Cardiff, CF3 2PR56, Mallards Reach, Cardiff, CF3 2PR
• Sold Oct 2024£345,000 | 4 Bed HouseDunelm, Wellfield Road, Cardiff, CF3 2UBDunelm, Wellfield Road, Cardiff, CF3 2UB
• Sold Aug 2024£395,000 | 3 Bed House4, Cambrian Way, Cardiff, CF3 2WB4, Cambrian Way, Cardiff, CF3 2WB
• Sold Aug 2022£368,000 | 4 Bed House18, The Meadows, Cardiff, CF3 2AY18, The Meadows, Cardiff, CF3 2AY
• Sold Jul 2021£310,000 | 4 Bed House2, Cambrian Gardens, Cardiff, CF3 2TF2, Cambrian Gardens, Cardiff, CF3 2TF
• Sold Jun 2021£299,950 | 4 Bed House10, Blacktown Gardens, Cardiff, CF3 2SF10, Blacktown Gardens, Cardiff, CF3 2SF
• Sold Apr 2021£237,000 | 4 Bed House5, Blacktown Gardens, Cardiff, CF3 2SF5, Blacktown Gardens, Cardiff, CF3 2SF
• Sold Aug 2020£340,000 | 4 Bed House12, Blacktown Gardens, Cardiff, CF3 2SF12, Blacktown Gardens, Cardiff, CF3 2SF
• Sold Nov 2019£260,000 | 3 Bed House14, Blacktown Gardens, Cardiff, CF3 2SF14, Blacktown Gardens, Cardiff, CF3 2SF
• Sold Sep 2017£285,000 | 4 Bed House18, Blacktown Gardens, Cardiff, CF3 2SF18, Blacktown Gardens, Cardiff, CF3 2SF
• Sold Aug 2017£268,000 | 4 Bed House11, Blacktown Gardens, Cardiff, CF3 2SF11, Blacktown Gardens, Cardiff, CF3 2SF
• Sold Jun 2017£200,000 | 4 Bed House22, St. Mellons Road, Cardiff, CF3 2TX22, St. Mellons Road, Cardiff, CF3 2TX
• Sold Dec 2016£247,000 | 3 Bed House124, Marshfield Road, Cardiff, CF3 2TU124, Marshfield Road, Cardiff, CF3 2TU
• Sold Oct 2014£290,000 | 3 Bed House5, Cambrian Grove, Cardiff, CF3 2US5, Cambrian Grove, Cardiff, CF3 2US

Our analysis of the public data ranks 9, St. Mellons Road, Cardiff as the 24th largest and the 19th most expensive of the 42 addresses on St. Mellons Road, Marshfield, Cardiff, CF3.

Against the CF3 postcode district average, it is £127k more expensive than the typical property.

• Pye Corner

  |

  5.8 km away
• Rogerstone

  |

  7.1 km away
• Llanishen

  |

  7.8 km away

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