HM Land Registry records the plot of land for 400, Heol Trelai, Cardiff as measuring 6,773 m².

That makes it the largest plot in the postcode, where 9 of the 10 other houses have recorded plot data.

400, Heol Trelai, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 30 Nov 2023.

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

The most recent sale of 400, Heol Trelai, Cardiff completed on 21st October 2022 at £236,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 5.7% over the period since October 2022.

• Sold Oct 2022£236,000

Since 2018 139 properties similar to 400, Heol Trelai, Cardiff have sold within a radius of 520 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 15th October 2025, was 44, Heol Yr Odyn, Cardiff, CF5 5QW, a freehold house which sold for £225,000.

Read more about house prices in CF5.

• Sold Oct 2025£225,000 | 3 Bed House44, Heol Yr Odyn, Cardiff, CF5 5QW44, Heol Yr Odyn, Cardiff, CF5 5QW
• Sold Jul 2025£265,000 | 3 Bed House75, Cyntwell Crescent, Cardiff, CF5 5QJ75, Cyntwell Crescent, Cardiff, CF5 5QJ
• Sold Feb 2025£189,000 | 3 Bed House66, Heol Poyston, Cardiff, CF5 5LZ66, Heol Poyston, Cardiff, CF5 5LZ
• Sold Jan 2025£220,000 | 3 Bed House466, Cowbridge Road West, Cardiff, CF5 5BZ466, Cowbridge Road West, Cardiff, CF5 5BZ
• Sold Sep 2024£212,000 | 3 Bed House72, Heol Poyston, Cardiff, CF5 5LZ72, Heol Poyston, Cardiff, CF5 5LZ
• Sold Sep 2024£228,000 | 4 Bed House189, Caerau Lane, Cardiff, CF5 5QZ189, Caerau Lane, Cardiff, CF5 5QZ
• Sold Jul 2024£225,000 | 3 Bed House58, Heol Yr Odyn, Cardiff, CF5 5QX58, Heol Yr Odyn, Cardiff, CF5 5QX
• Sold Jul 2024£235,000 | 4 Bed House67, Heol Poyston, Cardiff, CF5 5LZ67, Heol Poyston, Cardiff, CF5 5LZ
• Sold Dec 2023£1,666 | 3 Bed House27, Cyntwell Avenue, Cardiff, CF5 5QN27, Cyntwell Avenue, Cardiff, CF5 5QN
• Sold Nov 2023£280,000 | 3 Bed House150, Caerau Lane, Cardiff, CF5 5QZ150, Caerau Lane, Cardiff, CF5 5QZ
• Sold Oct 2023£262,000 | 4 Bed House4, Cyntwell Avenue, Cardiff, CF5 5QN4, Cyntwell Avenue, Cardiff, CF5 5QN
• Sold Jun 2023£235,000 | 3 Bed House45, Heol Yr Odyn, Cardiff, CF5 5QW45, Heol Yr Odyn, Cardiff, CF5 5QW
• Sold Apr 2023£268,000 | 3 Bed House57, Heol Poyston, Cardiff, CF5 5LY57, Heol Poyston, Cardiff, CF5 5LY
• Sold Nov 2022£267,000 | 4 Bed House187, Caerau Lane, Cardiff, CF5 5QZ187, Caerau Lane, Cardiff, CF5 5QZ
• Sold Mar 2022£198,000 | 4 Bed House40, Cyntwell Crescent, Cardiff, CF5 5QH40, Cyntwell Crescent, Cardiff, CF5 5QH
• Sold Feb 2022£250,000 | 3 Bed House67, Cyntwell Crescent, Cardiff, CF5 5QJ67, Cyntwell Crescent, Cardiff, CF5 5QJ
• Sold Oct 2021£240,000 | 4 Bed House8, Cyntwell Crescent, Cardiff, CF5 5QG8, Cyntwell Crescent, Cardiff, CF5 5QG
• Sold Oct 2021£155,000 | 4 Bed House20, Cyntwell Crescent, Cardiff, CF5 5QG20, Cyntwell Crescent, Cardiff, CF5 5QG
• Sold Jun 2020£142,000 | 3 Bed House43, Cyntwell Crescent, Cardiff, CF5 5QH43, Cyntwell Crescent, Cardiff, CF5 5QH
• Sold Jun 2018£145,000 | 4 Bed House31, Cyntwell Crescent, Cardiff, CF5 5QH31, Cyntwell Crescent, Cardiff, CF5 5QH

Of the 344 addresses on Heol Trelai, Cardiff, CF5, 400, Heol Trelai, Cardiff comes out as the 20th largest and the 41st most expensive in our analysis of the public data.

It is also £50k less expensive than the average property across the CF5 district.

• Waun-Gron Park

  |

  2.8 km away
• Fairwater

  |

  3.1 km away
• Danescourt

  |

  3.7 km away

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