21, Thornhill Street, Cardiff occupies a 92 m² plot as recorded by HM Land Registry.

All 15 other houses in this postcode have recorded plot sizes, and this one ranks as the 5th largest.

21, Thornhill Street, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Feb 2024.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

21, Thornhill Street, Cardiff last changed hands on 17th August 2009, selling for £125,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 3 times since 1995.

The market for similar properties has risen by 69.5% since August 2009.

• Sold Aug 2009£125,000
• Sold Dec 2003£110,000
• Sold Nov 1999£57,950

Land Registry records and our Estate Agent network show 88 sales of comparable properties within 350 metres of 21, Thornhill Street, Cardiff since 2021.

Most recently, 12A, Tintern Street, Cardiff, CF5 1NF, a freehold house, sold at £202,000 on the 21st April 2026.

Read more about house prices in CF5.

• Sold Apr 2026£202,000 | 3 Bed House12A, Tintern Street, Cardiff, CF5 1NF12A, Tintern Street, Cardiff, CF5 1NF
• Sold Oct 2025£251,000 | 3 Bed House6, Loftus Street, Cardiff, CF5 1HL6, Loftus Street, Cardiff, CF5 1HL
• Sold Aug 2025£273,500 | 3 Bed House5, Loftus Street, Cardiff, CF5 1HL5, Loftus Street, Cardiff, CF5 1HL
• Sold Apr 2025£285,000 | 3 Bed House15, Tintern Street, Cardiff, CF5 1NF15, Tintern Street, Cardiff, CF5 1NF
• Sold Mar 2025£181,000 | 3 Bed House28, Thornhill Street, Cardiff, CF5 1RD28, Thornhill Street, Cardiff, CF5 1RD
• Sold Feb 2025£265,000 | 3 Bed House39, Loftus Street, Cardiff, CF5 1HL39, Loftus Street, Cardiff, CF5 1HL
• Sold Sep 2024£282,000 | 3 Bed House19, Thornhill Street, Cardiff, CF5 1RD19, Thornhill Street, Cardiff, CF5 1RD
• Sold Aug 2024£260,000 | 3 Bed House1, Tintern Street, Cardiff, CF5 1NF1, Tintern Street, Cardiff, CF5 1NF
• Sold Aug 2024£233,535 | 3 Bed House24, Loftus Street, Cardiff, CF5 1HL24, Loftus Street, Cardiff, CF5 1HL
• Sold Jul 2024£240,000 | 3 Bed House10, Loftus Street, Cardiff, CF5 1HL10, Loftus Street, Cardiff, CF5 1HL
• Sold Feb 2024£190,000 | 3 Bed House20, Loftus Street, Cardiff, CF5 1HL20, Loftus Street, Cardiff, CF5 1HL
• Sold Dec 2023£240,000 | 3 Bed House11, Loftus Street, Cardiff, CF5 1HL11, Loftus Street, Cardiff, CF5 1HL
• Sold Dec 2023£243,000 | 3 Bed House15A, Tintern Street, Cardiff, CF5 1NF15A, Tintern Street, Cardiff, CF5 1NF
• Sold Oct 2023£280,000 | 3 Bed House5, Pen Y Peel Road, Cardiff, CF5 1QX5, Pen Y Peel Road, Cardiff, CF5 1QX
• Sold Sep 2022£253,000 | 3 Bed House4, Egerton Street, Cardiff, CF5 1RG4, Egerton Street, Cardiff, CF5 1RG
• Sold Apr 2022£225,000 | 3 Bed House4A, Egerton Street, Cardiff, CF5 1RG4A, Egerton Street, Cardiff, CF5 1RG
• Sold Mar 2022£285,500 | 3 Bed House9, Anglesey Street, Cardiff, CF5 1QZ9, Anglesey Street, Cardiff, CF5 1QZ
• Sold Jan 2022£237,000 | 3 Bed House4, Tintern Street, Cardiff, CF5 1NF4, Tintern Street, Cardiff, CF5 1NF
• Sold Nov 2021£260,000 | 3 Bed House9, Thornhill Street, Cardiff, CF5 1RD9, Thornhill Street, Cardiff, CF5 1RD
• Sold Oct 2021£255,000 | 3 Bed House3, Thornhill Street, Cardiff, CF5 1RD3, Thornhill Street, Cardiff, CF5 1RD

Our analysis of the public data ranks 21, Thornhill Street, Cardiff as the 8th largest and the 8th most expensive of the 15 addresses on Thornhill Street, Cardiff, CF5.

Against the CF5 postcode district average, it is £54k less expensive than the typical property.

• Ninian Park

  |

  900 m away
• Waun-Gron Park

  |

  1.6 km away
• Fairwater

  |

  2.1 km away

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