HM Land Registry records the plot of land for 21, Nant Eirin, Porth as measuring 369 m².

That makes it the largest plot in the postcode, where all 21 other houses have recorded plot data.

21, Nant Eirin, Porth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 27 May 2025.

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

Since 2012 135 properties similar to 21, Nant Eirin, Porth have sold within a radius of 840 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 20th May 2026, was 50, Bryngolau, Porth, CF39 8HP, a freehold house which sold for £137,000.

Read more about house prices in CF39.

• Sold May 2026£137,000 | 3 Bed House50, Bryngolau, Porth, CF39 8HP50, Bryngolau, Porth, CF39 8HP
• Sold Mar 2026£186,950 | 3 Bed House115, Mill Street, Porth, CF39 8AE115, Mill Street, Porth, CF39 8AE
• Sold Dec 2025£146,500 | 3 Bed House47, Cae'R Gwerlas, Porth, CF39 8HY47, Cae'R Gwerlas, Porth, CF39 8HY
• Sold Jul 2025£137,000 | 3 Bed House11, Heol Brynteg, Porth, CF39 8DL11, Heol Brynteg, Porth, CF39 8DL
• Sold Apr 2025£138,000 | 3 Bed House107, Mill Street, Porth, CF39 8AE107, Mill Street, Porth, CF39 8AE
• Sold Apr 2025£150,000 | 3 Bed House46, Bryngolau, Porth, CF39 8HP46, Bryngolau, Porth, CF39 8HP
• Sold Mar 2024£139,950 | 3 Bed House13, Heol Haulfryn, Porth, CF39 8DG13, Heol Haulfryn, Porth, CF39 8DG
• Sold Jan 2024£162,000 | 4 Bed House12, Heol Brynteg, Porth, CF39 8DL12, Heol Brynteg, Porth, CF39 8DL
• Sold May 2023£140,000 | 3 Bed House8, Heol Haulfryn, Porth, CF39 8DG8, Heol Haulfryn, Porth, CF39 8DG
• Sold May 2023£39,999 | 3 Bed House6, Heol Brynteg, Porth, CF39 8DL6, Heol Brynteg, Porth, CF39 8DL
• Sold Apr 2023£130,000 | 3 Bed House12, Heol Pentwyn, Porth, CF39 8DF12, Heol Pentwyn, Porth, CF39 8DF
• Sold Nov 2022£35,000 | 3 Bed House68, Bryngolau, Porth, CF39 8HP68, Bryngolau, Porth, CF39 8HP
• Sold Apr 2022£135,000 | 3 Bed House13, Heol Brynteg, Porth, CF39 8DL13, Heol Brynteg, Porth, CF39 8DL
• Sold Apr 2022£110,000 | 3 Bed House7, Heol Brynteg, Porth, CF39 8DL7, Heol Brynteg, Porth, CF39 8DL
• Sold Sep 2021£150,000 | 3 Bed House76, Francis Street, Porth, CF39 8DR76, Francis Street, Porth, CF39 8DR
• Sold Jun 2021£131,500 | 3 Bed House3, Heol Waun, Porth, CF39 8DH3, Heol Waun, Porth, CF39 8DH
• Sold Oct 2020£61,000 | 3 Bed House5, Heol Brynteg, Porth, CF39 8DL5, Heol Brynteg, Porth, CF39 8DL
• Sold Apr 2018£72,500 | 3 Bed House23, Heol Waun, Porth, CF39 8DH23, Heol Waun, Porth, CF39 8DH
• Sold Jan 2017£73,000 | 3 Bed House17, Heol Waun, Porth, CF39 8DH17, Heol Waun, Porth, CF39 8DH
• Sold Feb 2012£70,000 | 3 Bed House19, Heol Brynteg, Porth, CF39 8DL19, Heol Brynteg, Porth, CF39 8DL

Of the 88 addresses on Nant Eirin, Tonyrefail, Porth, CF39, 21, Nant Eirin, Porth comes out as the 3rd largest and the 68th most expensive in our analysis of the public data.

It is also £7k less expensive than the average property across the CF39 district.

• Porth

  |

  4.3 km away
• Dinas (Rhondda)

  |

  4.4 km away
• Llanharan

  |

  4.5 km away

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