18, Penmain Street, Porth occupies a 153 m² plot as recorded by HM Land Registry.

All 38 other houses in this postcode have recorded plot sizes, and this one ranks as the 3rd largest.

18, Penmain Street, Porth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 24 Jul 2014.

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 90 sales of comparable properties within 850 metres of 18, Penmain Street, Porth since 2019.

Most recently, 3, Islwyn Terrace, Porth, CF39 0DL, a freehold house, sold at £150,000 on the 25th February 2026.

Read more about house prices in CF39.

• Sold Feb 2026£150,000 | 4 Bed House3, Islwyn Terrace, Porth, CF39 0DL3, Islwyn Terrace, Porth, CF39 0DL
• Sold Feb 2026£147,500 | 4 Bed House44, Aberrhondda Road, Porth, CF39 0BB44, Aberrhondda Road, Porth, CF39 0BB
• Sold Dec 2025£188,000 | 4 Bed House148, Aberrhondda Road, Porth, CF39 0BA148, Aberrhondda Road, Porth, CF39 0BA
• Sold Oct 2025£165,000 | 4 Bed House133, Aberrhondda Road, Porth, CF39 0BA133, Aberrhondda Road, Porth, CF39 0BA
• Sold Oct 2025£105,000 | 4 Bed House12, Upton Street, Porth, CF39 0DR12, Upton Street, Porth, CF39 0DR
• Sold Sep 2025£209,950 | 4 Bed House8, Upton Street, Porth, CF39 0DR8, Upton Street, Porth, CF39 0DR
• Sold Sep 2025£145,000 | 4 Bed House45, Aldergrove Road, Porth, CF39 0LP45, Aldergrove Road, Porth, CF39 0LP
• Sold Jul 2025£155,000 | 4 Bed House115, Aberrhondda Road, Porth, CF39 0AU115, Aberrhondda Road, Porth, CF39 0AU
• Sold Jul 2025£179,000 | 4 Bed House16, Davies Street, Porth, CF39 0DB16, Davies Street, Porth, CF39 0DB
• Sold May 2025£103,000 | 4 Bed House9, Upton Street, Porth, CF39 0DR9, Upton Street, Porth, CF39 0DR
• Sold Mar 2025£174,995 | 4 Bed House143, Aberrhondda Road, Porth, CF39 0BA143, Aberrhondda Road, Porth, CF39 0BA
• Sold Nov 2024£184,950 | 4 Bed House125, Aldergrove Road, Porth, CF39 0LP125, Aldergrove Road, Porth, CF39 0LP
• Sold Oct 2024£105,000 | 4 Bed House3, Upton Street, Porth, CF39 0DR3, Upton Street, Porth, CF39 0DR
• Sold Jul 2024£140,000 | 4 Bed House144, Aldergrove Road, Porth, CF39 0LU144, Aldergrove Road, Porth, CF39 0LU
• Sold Jun 2024£169,995 | 4 Bed House109, Aberrhondda Road, Porth, CF39 0AU109, Aberrhondda Road, Porth, CF39 0AU
• Sold May 2024£156,000 | 4 Bed House114, Aldergrove Road, Porth, CF39 0LP114, Aldergrove Road, Porth, CF39 0LP
• Sold Jun 2023£199,995 | 4 Bed House24, Grawen Street, Porth, CF39 0BU24, Grawen Street, Porth, CF39 0BU
• Sold Aug 2022£179,000 | 4 Bed House5, Jestyn Street, Porth, CF39 0DN5, Jestyn Street, Porth, CF39 0DN
• Sold Aug 2022£145,100 | 4 Bed House30, Davies Street, Porth, CF39 0DB30, Davies Street, Porth, CF39 0DB
• Sold Aug 2019£92,000 | 4 Bed House10, Upton Street, Porth, CF39 0DR10, Upton Street, Porth, CF39 0DR

Our analysis of the public data ranks 18, Penmain Street, Porth as the largest and the most expensive of the 38 addresses on Penmain Street, Porth, CF39.

Against the CF39 postcode district average, it is £8k more expensive than the typical property.

• Porth

  |

  800 m away
• Dinas (Rhondda)

  |

  1.5 km away
• Tonypandy

  |

  2.3 km away

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