According to data from HM Land Registry, 3, St. Mellons Road, Cardiff sits on a plot of 1,079 m².

We have plot size data on 28 out of 42 other houses in the postcode and 3, St. Mellons Road, Cardiff sits on the 5th largest plot.

3, St. Mellons Road, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 06 Mar 2019.

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, 3, St. Mellons Road, Cardiff was last sold on 24th January 1997 for £75,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

• Sold Jan 1997£75,000

According to the Land Registry and our network of Estate Agents, there have been 180 sales of properties similar to 3, St. Mellons Road, Cardiff within a radius of 2.0 kilometres since 2014.

The most recent example is 122, Marshfield Road, Cardiff, CF3 2TU, a freehold house which sold for £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 Apr 2019£305,000 | 4 Bed House88, Mallards Reach, Cardiff, CF3 2PR88, Mallards Reach, Cardiff, CF3 2PR
• 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 Dec 2016£247,000 | 3 Bed House124, Marshfield Road, Cardiff, CF3 2TU124, Marshfield Road, Cardiff, CF3 2TU
• Sold Mar 2015£240,000 | 4 Bed HouseLittle Challows, Wellfield Road, Cardiff, CF3 2UBLittle Challows, Wellfield Road, Cardiff, CF3 2UB
• Sold Oct 2014£290,000 | 3 Bed House5, Cambrian Grove, Cardiff, CF3 2US5, Cambrian Grove, Cardiff, CF3 2US

St. Mellons Road, Marshfield, Cardiff, CF3 has a total of 42 addresses. According to our analysis of all the public data, 3, St. Mellons Road, Cardiff is the 20th largest and the 16th most expensive property on the street.

When compared to the postcode district it is £135k more expensive than the average property in CF3.

• Pye Corner

  |

  5.8 km away
• Rogerstone

  |

  7.1 km away
• Llanishen

  |

  7.8 km away

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