HM Land Registry records the plot of land for 6, William Street, Porth as measuring 122 m².

That makes it the 23rd largest plot in the postcode, where 30 of the 33 other houses have recorded plot data.

6, William Street, Porth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 24 Jun 2020.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

The most recent sale of 6, William Street, Porth completed on 28th March 2014 at £50,000 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 81.5% over the period since March 2014.

• Sold Mar 2014£50,000

Since 2017 328 properties similar to 6, William Street, Porth have sold within a radius of 1.1 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 2nd April 2026, was 2, Llanwonno Road, Porth, CF39 0HU, a freehold house which sold for £135,000.

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 Dec 2023£125,000 | 3 Bed House1, William Street, Porth, CF39 0EU1, William Street, Porth, CF39 0EU
• 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 Aug 2017£69,000 | 3 Bed House30, Church Terrace, Porth, CF39 0ET30, Church Terrace, Porth, CF39 0ET

Of the 68 addresses on William Street, Porth, CF39, 6, William Street, Porth comes out as the 26th largest and the 51st most expensive in our analysis of the public data.

It is also £18k less expensive than the average property across the CF39 district.

• Porth

  |

  1.4 km away
• Dinas (Rhondda)

  |

  2.1 km away
• Trehafod

  |

  2.6 km away

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