1, William Street, Porth occupies a 121 m² plot as recorded by HM Land Registry.

Of the 33 other houses in this postcode, 30 have recorded plot sizes, and this one ranks as the 27th largest.

1, William Street, Porth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 15 Jun 2015.

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

1, William Street, Porth last changed hands on 8th December 2023, selling for £125,000. 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 8.4% since December 2023.

• Sold Dec 2023£125,000

Land Registry records and our Estate Agent network show 327 sales of comparable properties within 1.0 kilometres of 1, William Street, Porth since 2017.

Most recently, 2, Llanwonno Road, Porth, CF39 0HU, a freehold house, sold at £135,000 on the 2nd April 2026.

Read more about house prices in CF39.

• Sold Apr 2026£135,000 | 3 Bed House2, Llanwonno Road, Porth, CF39 0HU2, Llanwonno Road, Porth, CF39 0HU
• Sold Jan 2026£142,000 | 3 Bed House23, Standard Terrace, Porth, CF39 0HG23, Standard Terrace, Porth, CF39 0HG
• Sold Dec 2025£128,000 | 3 Bed House38, Church Terrace, Porth, CF39 0ET38, Church Terrace, Porth, CF39 0ET
• Sold Jul 2025£125,000 | 3 Bed House62, Ynyshir Road, Porth, CF39 0EN62, Ynyshir Road, Porth, CF39 0EN
• Sold Mar 2025£90,000 | 3 Bed House13, Graig Road, Porth, CF39 0NS13, Graig Road, Porth, CF39 0NS
• Sold Feb 2025£85,000 | 3 Bed House29, Standard Terrace, Porth, CF39 0HG29, Standard Terrace, Porth, CF39 0HG
• Sold Jan 2025£120,000 | 3 Bed House3, Weston Terrace, Porth, CF39 0ER3, Weston Terrace, Porth, CF39 0ER
• Sold Nov 2024£170,000 | 3 Bed House26, Church Terrace, Porth, CF39 0ET26, Church Terrace, Porth, CF39 0ET
• Sold Oct 2024£132,500 | 3 Bed House8, Llanwonno Road, Porth, CF39 0HU8, Llanwonno Road, Porth, CF39 0HU
• Sold Jun 2024£110,000 | 3 Bed House31, William Street, Porth, CF39 0EU31, William Street, Porth, CF39 0EU
• Sold Dec 2023£100,000 | 3 Bed House76, Ynyshir Road, Porth, CF39 0EN76, Ynyshir Road, Porth, CF39 0EN
• Sold Apr 2023£75,000 | 3 Bed House47, William Street, Porth, CF39 0EY47, William Street, Porth, CF39 0EY
• Sold Mar 2023£145,000 | 3 Bed House6, Graig Road, Porth, CF39 0NS6, Graig Road, Porth, CF39 0NS
• Sold Nov 2022£105,000 | 3 Bed House15, Graig Road, Porth, CF39 0NS15, Graig Road, Porth, CF39 0NS
• Sold Jul 2022£123,000 | 3 Bed House60, William Street, Porth, CF39 0EY60, William Street, Porth, CF39 0EY
• Sold Apr 2022£105,000 | 3 Bed House20, Weston Terrace, Porth, CF39 0ER20, Weston Terrace, Porth, CF39 0ER
• Sold Oct 2019£95,000 | 3 Bed House42, William Street, Porth, CF39 0EY42, William Street, Porth, CF39 0EY
• Sold Oct 2018£78,000 | 3 Bed House52, William Street, Porth, CF39 0EY52, William Street, Porth, CF39 0EY
• Sold Jan 2018£65,000 | 3 Bed House63, William Street, Porth, CF39 0EY63, William Street, Porth, CF39 0EY
• Sold Aug 2017£69,000 | 3 Bed House30, Church Terrace, Porth, CF39 0ET30, Church Terrace, Porth, CF39 0ET

Our analysis of the public data ranks 1, William Street, Porth as the 25th largest and the 50th most expensive of the 68 addresses on William Street, Porth, CF39.

Against the CF39 postcode district average, it is £18k less expensive than the typical property.

• Porth

  |

  1.4 km away
• Dinas (Rhondda)

  |

  2.1 km away
• Trehafod

  |

  2.6 km away

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