HM Land Registry records the plot of land for 56, Mardy Street, Cardiff as measuring 130 m².

That makes it the 31st largest plot in the postcode, where 37 of the 38 other houses have recorded plot data.

56, Mardy Street, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 19 Sep 2025.

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

The most recent sale of 56, Mardy Street, Cardiff completed on 15th October 2021 at £325,000 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 risen by 33.8% over the period since October 2021.

• Sold Oct 2021£325,000

Since 2018 93 properties similar to 56, Mardy Street, Cardiff have sold within a radius of 360 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 17th December 2025, was 25, Ferndale Street, Cardiff, CF11 7AZ, a freehold house which sold for £270,000.

Read more about house prices in CF11.

• Sold Dec 2025£270,000 | 3 Bed House25, Ferndale Street, Cardiff, CF11 7AZ25, Ferndale Street, Cardiff, CF11 7AZ
• Sold Nov 2025£295,000 | 3 Bed House34, Mardy Street, Cardiff, CF11 6QU34, Mardy Street, Cardiff, CF11 6QU
• Sold Nov 2025£262,500 | 3 Bed House55, Dorset Street, Cardiff, CF11 6PT55, Dorset Street, Cardiff, CF11 6PT
• Sold May 2025£287,500 | 3 Bed House34, Hafod Street, Cardiff, CF11 6RB34, Hafod Street, Cardiff, CF11 6RB
• Sold Jan 2025£270,500 | 3 Bed House37, Mardy Street, Cardiff, CF11 6QU37, Mardy Street, Cardiff, CF11 6QU
• Sold Aug 2024£221,000 | 3 Bed House2, Chester Place, Cardiff, CF11 6PX2, Chester Place, Cardiff, CF11 6PX
• Sold Jul 2024£250,000 | 4 Bed House8, Hafod Street, Cardiff, CF11 6RA8, Hafod Street, Cardiff, CF11 6RA
• Sold Jun 2024£281,000 | 4 Bed House37, Pentre Street, Cardiff, CF11 6QX37, Pentre Street, Cardiff, CF11 6QX
• Sold Jun 2024£255,000 | 3 Bed House30, Hafod Street, Cardiff, CF11 6RB30, Hafod Street, Cardiff, CF11 6RB
• Sold Dec 2023£348,000 | 4 Bed House11, Hafod Street, Cardiff, CF11 6RA11, Hafod Street, Cardiff, CF11 6RA
• Sold Sep 2023£240,000 | 4 Bed House15, Hafod Street, Cardiff, CF11 6RA15, Hafod Street, Cardiff, CF11 6RA
• Sold Feb 2023£340,000 | 4 Bed House68, Mardy Street, Cardiff, CF11 6QU68, Mardy Street, Cardiff, CF11 6QU
• Sold Jun 2022£280,000 | 3 Bed House66, Mardy Street, Cardiff, CF11 6QU66, Mardy Street, Cardiff, CF11 6QU
• Sold Jan 2022£295,000 | 4 Bed House82, Mardy Street, Cardiff, CF11 6QW82, Mardy Street, Cardiff, CF11 6QW
• Sold Oct 2020£310,000 | 3 Bed House21, Hafod Street, Cardiff, CF11 6RB21, Hafod Street, Cardiff, CF11 6RB
• Sold Apr 2020£180,000 | 3 Bed House27, Mardy Street, Cardiff, CF11 6QU27, Mardy Street, Cardiff, CF11 6QU
• Sold May 2019£308,000 | 3 Bed House33, Mardy Street, Cardiff, CF11 6QU33, Mardy Street, Cardiff, CF11 6QU
• Sold May 2019£277,500 | 3 Bed House45, Mardy Street, Cardiff, CF11 6QU45, Mardy Street, Cardiff, CF11 6QU
• Sold Dec 2018£271,000 | 3 Bed House31, Mardy Street, Cardiff, CF11 6QU31, Mardy Street, Cardiff, CF11 6QU
• Sold Apr 2018£240,000 | 4 Bed House60, Mardy Street, Cardiff, CF11 6QU60, Mardy Street, Cardiff, CF11 6QU

Of the 116 addresses on Mardy Street, Cardiff, CF11, 56, Mardy Street, Cardiff comes out as the 76th largest and the 42nd most expensive in our analysis of the public data.

It is also £45k more expensive than the average property across the CF11 district.

• Cardiff Central

  |

  600 m away
• Grangetown (Cardiff)

  |

  700 m away
• Ninian Park

  |

  1.1 km away

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