21 Quayside, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 May 2022.

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

21 Quayside, Cardiff last changed hands on 27th May 2011, selling for £147,000. The transaction was logged as a leasehold flat by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 12.6% since May 2011.

• Sold May 2011£147,000

Land Registry records and our Estate Agent network show 214 sales of comparable properties within 470 metres of 21 Quayside, Cardiff since 2019.

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£195,000 | 2 Bed Flat17 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY17 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
• 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 Dec 2025£130,000 | 2 Bed Flat48, Lynton Court, Cardiff, CF10 5NF48, Lynton Court, Cardiff, CF10 5NF
• Sold Nov 2025£182,500 | 2 Bed Flat42, Harrowby Street, Cardiff, CF10 5GA42, Harrowby Street, Cardiff, CF10 5GA
• Sold Sep 2025£180,000 | 2 Bed Flat70, Harrowby Street, Cardiff, CF10 5GA70, Harrowby Street, Cardiff, CF10 5GA
• 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 Nov 2024£157,500 | 2 Bed Flat40, Lynton Court, Cardiff, CF10 5NF40, Lynton Court, Cardiff, CF10 5NF
• Sold Oct 2024£182,875 | 2 Bed FlatFlat 16, Cadogan House, West Bute Street, Cardiff, CF10 5ENFlat 16, Cadogan House, West Bute Street, Cardiff, CF10 5EN
• 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 May 2024£180,000 | 2 Bed Flat58, Harrowby Street, Cardiff, CF10 5GA58, Harrowby Street, Cardiff, CF10 5GA
• Sold Apr 2024£110,000 | 2 Bed Flat68, Harrowby Street, Cardiff, CF10 5GA68, Harrowby Street, Cardiff, CF10 5GA
• Sold Aug 2023£210,000 | 2 Bed Flat8 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY8 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
• Sold Jul 2023£150,000 | 2 Bed FlatFlat 14, Cymric Buildings, West Bute Street, Cardiff, CF10 5LLFlat 14, Cymric Buildings, West Bute Street, Cardiff, CF10 5LL
• 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 2021£220,000 | 2 Bed FlatFlat 21, Cadogan House, West Bute Street, Cardiff, CF10 5ENFlat 21, Cadogan House, West Bute Street, Cardiff, CF10 5EN
• Sold Dec 2019£177,500 | 2 Bed Flat31 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY31 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
• Sold Jun 2019£170,000 | 2 Bed FlatFlat 14, Cadogan House, West Bute Street, Cardiff, CF10 5ENFlat 14, Cadogan House, West Bute Street, Cardiff, CF10 5EN
• Sold May 2019£156,000 | 2 Bed FlatFlat 4, Cadogan House, West Bute Street, Cardiff, CF10 5ENFlat 4, Cadogan House, West Bute Street, Cardiff, CF10 5EN
• Sold Apr 2019£185,000 | 2 Bed FlatFlat 19, Cadogan House, West Bute Street, Cardiff, CF10 5ENFlat 19, Cadogan House, West Bute Street, Cardiff, CF10 5EN

Our analysis of the public data ranks 21 Quayside, Cardiff as the 29th largest and the 41st most expensive of the 106 addresses on Bute Crescent, Cardiff, CF10.

Against the CF10 postcode district average, it is £16k less expensive than the typical property.

• Cardiff Bay

  |

  300 m away
• Cardiff Central

  |

  1.6 km away
• Grangetown (Cardiff)

  |

  1.7 km away

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