18, Heol Trenewydd, Cardiff occupies a 228 m² plot as recorded by HM Land Registry.

Of the 9 other houses in this postcode, 6 have recorded plot sizes, and this one ranks as the 7th largest.

18, Heol Trenewydd, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 28 Sep 2014.

The property is not connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

18, Heol Trenewydd, Cardiff last changed hands on 27th July 2007, selling for £110,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 99.3% since July 2007.

• Sold Jul 2007£110,000

Land Registry records and our Estate Agent network show 632 sales within 560 metres of 18, Heol Trenewydd, Cardiff since 2007.

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 Feb 2025£256,700 | 4 Bed House75, Heol Poyston, Cardiff, CF5 5LZ75, Heol Poyston, Cardiff, CF5 5LZ
• Sold Feb 2025£189,000 | 3 Bed House66, Heol Poyston, Cardiff, CF5 5LZ66, Heol Poyston, Cardiff, CF5 5LZ
• Sold Sep 2024£212,000 | 3 Bed House72, Heol Poyston, Cardiff, CF5 5LZ72, Heol Poyston, Cardiff, CF5 5LZ
• Sold Sep 2024£218,000 | 4 Bed House55, Heol Poyston, Cardiff, CF5 5LY55, Heol Poyston, Cardiff, CF5 5LY
• Sold Sep 2024£218,000 | 3 Bed House7, Heol Trenewydd, Cardiff, CF5 5LU7, Heol Trenewydd, Cardiff, CF5 5LU
• Sold Jul 2024£235,000 | 4 Bed House67, Heol Poyston, Cardiff, CF5 5LZ67, Heol Poyston, Cardiff, CF5 5LZ
• Sold Nov 2023£240,000 | 3 Bed House68, Heol Poyston, Cardiff, CF5 5LZ68, Heol Poyston, Cardiff, CF5 5LZ
• Sold Apr 2023£268,000 | 3 Bed House57, Heol Poyston, Cardiff, CF5 5LY57, Heol Poyston, Cardiff, CF5 5LY
• Sold Feb 2023£220,000 | 3 Bed House70, Heol Poyston, Cardiff, CF5 5LZ70, Heol Poyston, Cardiff, CF5 5LZ
• Sold Nov 2021£170,000 | 3 Bed House79, Heol Poyston, Cardiff, CF5 5LZ79, Heol Poyston, Cardiff, CF5 5LZ
• Sold Apr 2018£135,000 | 3 Bed House341, Heol Trelai, Cardiff, CF5 5LJ341, Heol Trelai, Cardiff, CF5 5LJ
• Sold Dec 2016£110,500 | 3 Bed House60, Heol Poyston, Cardiff, CF5 5LY60, Heol Poyston, Cardiff, CF5 5LY
• Sold Mar 2016£134,000 | 4 Bed House77, Heol Poyston, Cardiff, CF5 5LZ77, Heol Poyston, Cardiff, CF5 5LZ
• Sold Feb 2015£114,000 | 3 Bed House4, Heol Trenewydd, Cardiff, CF5 5LU4, Heol Trenewydd, Cardiff, CF5 5LU
• Sold Aug 2013£86,000 | 3 Bed House335, Heol Trelai, Cardiff, CF5 5LJ335, Heol Trelai, Cardiff, CF5 5LJ
• Sold Aug 2012£103,000 | 3 Bed House56, Heol Poyston, Cardiff, CF5 5LY56, Heol Poyston, Cardiff, CF5 5LY
• Sold Aug 2011£102,500 | 3 Bed House74, Heol Poyston, Cardiff, CF5 5LZ74, Heol Poyston, Cardiff, CF5 5LZ
• Sold Oct 2009£91,000 | 3 Bed House79, Heol Y Castell, Cardiff, CF5 5LR79, Heol Y Castell, Cardiff, CF5 5LR
• Sold Jan 2007£132,500 | 3 Bed House337, Heol Trelai, Cardiff, CF5 5LJ337, Heol Trelai, Cardiff, CF5 5LJ

Our analysis of the public data ranks 18, Heol Trenewydd, Cardiff as the 15th largest and the 15th most expensive of the 15 addresses on Heol Trenewydd, Cardiff, CF5.

Against the CF5 postcode district average, it is £206k less expensive than the typical property.

• Waun-Gron Park

  |

  2.6 km away
• Fairwater

  |

  3.0 km away
• Ninian Park

  |

  3.6 km away

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