HM Land Registry records the plot of land for 40, Mardy Street, Cardiff as measuring 143 m².

That makes it the 15th largest plot in the postcode, where 37 of the 38 other houses have recorded plot data.

40, Mardy Street, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 Jul 2014.

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

Since 2018 79 properties similar to 40, Mardy Street, Cardiff have sold within a radius of 350 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 9th February 2026, was 57, Mardy Street, Cardiff, CF11 6QW, a freehold house which sold for £320,000.

Read more about house prices in CF11.

• Sold Feb 2026£320,000 | 4 Bed House57, Mardy Street, Cardiff, CF11 6QW57, Mardy Street, Cardiff, CF11 6QW
• Sold Nov 2025£295,000 | 3 Bed House34, Mardy Street, Cardiff, CF11 6QU34, Mardy Street, Cardiff, CF11 6QU
• Sold Mar 2025£310,000 | 4 Bed House13, Chester Place, Cardiff, CF11 6PX13, Chester Place, Cardiff, CF11 6PX
• Sold Feb 2025£190,000 | 4 Bed House126, Mardy Street, Cardiff, CF11 6QW126, Mardy Street, Cardiff, CF11 6QW
• Sold Jan 2025£270,500 | 3 Bed House37, Mardy Street, Cardiff, CF11 6QU37, Mardy Street, Cardiff, CF11 6QU
• Sold Oct 2024£280,000 | 4 Bed House25, Court Road, Cardiff, CF11 6RY25, Court Road, Cardiff, CF11 6RY
• 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£340,000 | 4 Bed House3, Hafod Street, Cardiff, CF11 6RA3, Hafod Street, Cardiff, CF11 6RA
• 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 Feb 2023£317,500 | 4 Bed House30, Mardy Street, Cardiff, CF11 6QU30, Mardy Street, Cardiff, CF11 6QU
• Sold Jan 2023£380,000 | 4 Bed House43, Pentre Street, Cardiff, CF11 6QX43, Pentre Street, Cardiff, CF11 6QX
• Sold Jan 2022£295,000 | 4 Bed House82, Mardy Street, Cardiff, CF11 6QW82, Mardy Street, Cardiff, CF11 6QW
• Sold Oct 2021£320,000 | 4 Bed House14, Hafod Street, Cardiff, CF11 6RA14, Hafod Street, Cardiff, CF11 6RA
• Sold Oct 2021£325,000 | 3 Bed House56, Mardy Street, Cardiff, CF11 6QU56, Mardy Street, Cardiff, CF11 6QU
• Sold Feb 2021£280,000 | 4 Bed House27, Pentre Street, Cardiff, CF11 6QX27, Pentre Street, Cardiff, CF11 6QX
• Sold Apr 2018£240,000 | 4 Bed House60, Mardy Street, Cardiff, CF11 6QU60, Mardy Street, Cardiff, CF11 6QU
• Sold Mar 2018£245,250 | 4 Bed House51, Mardy Street, Cardiff, CF11 6QW51, Mardy Street, Cardiff, CF11 6QW

Of the 116 addresses on Mardy Street, Cardiff, CF11, 40, Mardy Street, Cardiff comes out as the 48th largest and the 16th most expensive in our analysis of the public data.

It is also £71k 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.