321, Heol Trelai, Cardiff occupies a 749 m² plot as recorded by HM Land Registry.

Of the 17 other houses in this postcode, 16 have recorded plot sizes, and this one ranks as the largest.

321, Heol Trelai, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 27 Oct 2023.

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

Land Registry records and our Estate Agent network show 224 sales of comparable properties within 530 metres of 321, Heol Trelai, Cardiff since 2018.

Most recently, 14, Woodlands Park Drive, Cardiff, CF5 5RB, a leasehold house, sold at £220,000 on the 9th December 2025.

Read more about house prices in CF5.

• Sold Dec 2025£220,000 | 3 Bed House14, Woodlands Park Drive, Cardiff, CF5 5RB14, Woodlands Park Drive, Cardiff, CF5 5RB
• Sold Nov 2025£205,000 | 3 Bed House85, Heol Poyston, Cardiff, CF5 5LZ85, Heol Poyston, Cardiff, CF5 5LZ
• Sold Oct 2025£227,000 | 3 Bed House5, Woodlands Park Drive, Cardiff, CF5 5RB5, Woodlands Park Drive, Cardiff, CF5 5RB
• Sold Sep 2025£185,000 | 3 Bed House274, Heol Trelai, Cardiff, CF5 5PH274, Heol Trelai, Cardiff, CF5 5PH
• Sold Aug 2025£195,000 | 3 Bed House11, Woodlands Park Drive, Cardiff, CF5 5RB11, Woodlands Park Drive, Cardiff, CF5 5RB
• Sold Jul 2025£180,000 | 3 Bed House2, Heol Y Castell, Cardiff, CF5 5LS2, Heol Y Castell, Cardiff, CF5 5LS
• Sold Jun 2025£270,000 | 3 Bed House30, Cyntwell Crescent, Cardiff, CF5 5QH30, Cyntwell Crescent, Cardiff, CF5 5QH
• Sold Apr 2025£218,500 | 3 Bed House418, Cowbridge Road West, Cardiff, CF5 5BZ418, Cowbridge Road West, Cardiff, CF5 5BZ
• Sold Nov 2024£170,000 | 3 Bed House14, Heol Y Castell, Cardiff, CF5 5LS14, Heol Y Castell, Cardiff, CF5 5LS
• Sold Sep 2024£212,000 | 3 Bed House72, Heol Poyston, Cardiff, CF5 5LZ72, Heol Poyston, Cardiff, CF5 5LZ
• Sold Jul 2024£225,000 | 3 Bed House84, Heol Poyston, Cardiff, CF5 5LZ84, Heol Poyston, Cardiff, CF5 5LZ
• Sold Jun 2024£190,000 | 3 Bed House11, Heol Poyston, Cardiff, CF5 5LX11, Heol Poyston, Cardiff, CF5 5LX
• Sold Jan 2024£235,000 | 3 Bed House2, Caerau Park Crescent, Cardiff, CF5 5JJ2, Caerau Park Crescent, Cardiff, CF5 5JJ
• Sold Nov 2023£240,000 | 3 Bed House68, Heol Poyston, Cardiff, CF5 5LZ68, Heol Poyston, Cardiff, CF5 5LZ
• Sold Oct 2023£205,000 | 3 Bed House47, Heol Poyston, Cardiff, CF5 5LY47, Heol Poyston, Cardiff, CF5 5LY
• Sold Feb 2023£220,000 | 3 Bed House70, Heol Poyston, Cardiff, CF5 5LZ70, Heol Poyston, Cardiff, CF5 5LZ
• Sold Dec 2022£285,500 | 3 Bed House15, Caerau Park Road, Cardiff, CF5 5JG15, Caerau Park Road, Cardiff, CF5 5JG
• Sold May 2022£185,000 | 3 Bed House42, Heol Y Castell, Cardiff, CF5 5LS42, Heol Y Castell, Cardiff, CF5 5LS
• Sold Apr 2022£200,000 | 3 Bed House63, Heol Yr Odyn, Cardiff, CF5 5QW63, Heol Yr Odyn, Cardiff, CF5 5QW
• Sold Nov 2018£123,000 | 3 Bed House33, Heol Poyston, Cardiff, CF5 5LY33, Heol Poyston, Cardiff, CF5 5LY

Our analysis of the public data ranks 321, Heol Trelai, Cardiff as the 151st largest and the 171st most expensive of the 344 addresses on Heol Trelai, Cardiff, CF5.

Against the CF5 postcode district average, it is £85k less expensive than the typical property.

• Waun-Gron Park

  |

  2.4 km away
• Fairwater

  |

  2.8 km away
• Ninian Park

  |

  3.4 km away

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