12, Mardy Street, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 24 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).

Since 2013 55 properties similar to 12, 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 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 Oct 2025£180,000 | 4 Bed House127, Clare Road, Cardiff, CF11 6QR127, Clare Road, Cardiff, CF11 6QR
• Sold Sep 2025£310,000 | 4 Bed House41, Clare Road, Cardiff, CF11 6QP41, Clare Road, Cardiff, CF11 6QP
• Sold Mar 2025£280,000 | 4 Bed House82, Pentre Gardens, Cardiff, CF11 6QH82, Pentre Gardens, Cardiff, CF11 6QH
• 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£265,000 | 4 Bed House77, Mardy Street, Cardiff, CF11 6QW77, Mardy Street, Cardiff, CF11 6QW
• Sold Oct 2024£280,000 | 4 Bed House25, Court Road, Cardiff, CF11 6RY25, Court Road, Cardiff, CF11 6RY
• Sold Jun 2024£340,000 | 4 Bed House3, Hafod Street, Cardiff, CF11 6RA3, Hafod Street, Cardiff, CF11 6RA
• Sold Feb 2024£305,000 | 4 Bed House18, Pentre Gardens, Cardiff, CF11 6QG18, Pentre Gardens, Cardiff, CF11 6QG
• Sold Sep 2022£259,000 | 4 Bed House66, Pentre Gardens, Cardiff, CF11 6QH66, Pentre Gardens, Cardiff, CF11 6QH
• Sold Oct 2021£320,000 | 4 Bed House14, Hafod Street, Cardiff, CF11 6RA14, Hafod Street, Cardiff, CF11 6RA
• Sold Jun 2021£325,000 | 5 Bed House83, Mardy Street, Cardiff, CF11 6QW83, Mardy Street, Cardiff, CF11 6QW
• Sold Apr 2020£292,000 | 4 Bed House68, Pentre Gardens, Cardiff, CF11 6QH68, Pentre Gardens, Cardiff, CF11 6QH
• Sold Sep 2018£269,000 | 4 Bed House26, Merches Gardens, Cardiff, CF11 6RE26, Merches Gardens, Cardiff, CF11 6RE
• Sold Mar 2018£245,250 | 4 Bed House51, Mardy Street, Cardiff, CF11 6QW51, Mardy Street, Cardiff, CF11 6QW
• Sold Jul 2017£150,000 | 4 Bed House47, Court Road, Cardiff, CF11 6RZ47, Court Road, Cardiff, CF11 6RZ
• Sold Nov 2016£178,000 | 4 Bed House80, Mardy Street, Cardiff, CF11 6QW80, Mardy Street, Cardiff, CF11 6QW
• Sold Jun 2014£195,000 | 4 Bed House67, Mardy Street, Cardiff, CF11 6QW67, Mardy Street, Cardiff, CF11 6QW
• Sold Aug 2013£217,000 | 4 Bed House16, Hafod Street, Cardiff, CF11 6RA16, Hafod Street, Cardiff, CF11 6RA

Of the 116 addresses on Mardy Street, Cardiff, CF11, 12, Mardy Street, Cardiff comes out as the 14th largest and the 53rd most expensive in our analysis of the public data.

It is also £37k more expensive than the average property across the CF11 district.

• Cardiff Central

  |

  500 m away
• Grangetown (Cardiff)

  |

  900 m away
• Ninian Park

  |

  1.1 km away

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