43 St. Stephens Mansions, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Sep 2018.

The property is not connected to mains gas and has fully double glazed windows. It is heated using room heaters (electric).

43 St. Stephens Mansions, Cardiff last changed hands on 18th March 2005, selling for £175,500. The transaction was logged as a leasehold flat by HM Land Registry.

In total it has sold twice since 1995.

• Sold Mar 2005£175,500
• Sold Jul 2003£155,000

Land Registry records and our Estate Agent network show 314 sales of comparable properties within 330 metres of 43 St. Stephens Mansions, Cardiff since 2017.

Most recently, 32 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ, a leasehold flat, sold at £200,000 on the 29th May 2026.

Read more about house prices in CF10.

• Sold May 2026£200,000 | 2 Bed Flat32 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ32 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
• Sold May 2026£162,000 | 2 Bed Flat36 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ36 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
• Sold Apr 2026£185,000 | 2 Bed FlatVienna House 43, Penstone Court, Cardiff, CF10 5NLVienna House 43, Penstone Court, Cardiff, CF10 5NL
• Sold Mar 2026£147,500 | 2 Bed Flat229, Penstone Court, Cardiff, CF10 5NQ229, Penstone Court, Cardiff, CF10 5NQ
• Sold Feb 2026£169,950 | 2 Bed FlatGeneva House 22, Penstone Court, Cardiff, CF10 5NLGeneva House 22, Penstone Court, Cardiff, CF10 5NL
• Sold Jan 2026£155,000 | 2 Bed Flat74, Penstone Court, Cardiff, CF10 5NN74, Penstone Court, Cardiff, CF10 5NN
• Sold Dec 2025£130,000 | 2 Bed Flat48, Lynton Court, Cardiff, CF10 5NF48, Lynton Court, Cardiff, CF10 5NF
• Sold Nov 2025£80,000 | 2 Bed Flat230, Penstone Court, Cardiff, CF10 5NQ230, Penstone Court, Cardiff, CF10 5NQ
• Sold Jul 2025£195,000 | 2 Bed Flat46 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ46 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
• Sold Jun 2025£138,000 | 2 Bed Flat22, Judkin Court, Cardiff, CF10 5AU22, Judkin Court, Cardiff, CF10 5AU
• Sold Mar 2025£155,000 | 2 Bed Flat19, Judkin Court, Cardiff, CF10 5AU19, Judkin Court, Cardiff, CF10 5AU
• Sold Nov 2024£157,500 | 2 Bed Flat40, Lynton Court, Cardiff, CF10 5NF40, Lynton Court, Cardiff, CF10 5NF
• Sold Jul 2024£199,900 | 2 Bed Flat12 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ12 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
• Sold Jun 2024£148,000 | 2 Bed FlatGeneva House 23, Penstone Court, Cardiff, CF10 5NLGeneva House 23, Penstone Court, Cardiff, CF10 5NL
• Sold Jan 2023£162,000 | 2 Bed Flat59, Lynton Court, Cardiff, CF10 5NF59, Lynton Court, Cardiff, CF10 5NF
• Sold Jul 2022£141,000 | 2 Bed Flat49, Lynton Court, Cardiff, CF10 5NF49, Lynton Court, Cardiff, CF10 5NF
• Sold Nov 2021£178,000 | 2 Bed Flat40 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ40 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
• Sold May 2020£185,000 | 2 Bed Flat67 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ67 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
• Sold Dec 2019£180,000 | 2 Bed Flat44 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ44 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
• Sold Sep 2017£172,000 | 2 Bed Flat16 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ16 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ

Our analysis of the public data ranks 43 St. Stephens Mansions, Cardiff as the 89th largest and the 70th most expensive of the 222 addresses on Mount Stuart Square, Cardiff, CF10.

Against the CF10 postcode district average, it is £20k less expensive than the typical property.

• Cardiff Bay

  |

  200 m away
• Cardiff Central

  |

  1.3 km away
• Grangetown (Cardiff)

  |

  1.4 km away

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