90, William Street, Caerphilly occupies a 108 m² plot as recorded by HM Land Registry.

Of the 28 other houses in this postcode, 23 have recorded plot sizes, and this one ranks as the 24th largest.

90, William Street, Caerphilly has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 23 Nov 2018.

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

90, William Street, Caerphilly last changed hands on 1st February 2019, selling for £110,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 3 times since 1995.

The market for similar properties has risen by 77.2% since February 2019.

• Sold Feb 2019£110,000
• Sold Jan 2004£80,000
• Sold May 2002£57,000

Land Registry records and our Estate Agent network show 193 sales of comparable properties within 1.1 kilometres of 90, William Street, Caerphilly since 2021.

Most recently, 42, Mary Street, Caerphilly, CF83 8HN, a freehold house, sold at £188,000 on the 23rd March 2026.

Read more about house prices in CF83.

• Sold Mar 2026£188,000 | 3 Bed House42, Mary Street, Caerphilly, CF83 8HN42, Mary Street, Caerphilly, CF83 8HN
• Sold Feb 2026£170,000 | 3 Bed House44, Mary Street, Caerphilly, CF83 8HN44, Mary Street, Caerphilly, CF83 8HN
• Sold Dec 2025£205,000 | 3 Bed House26, William Street, Caerphilly, CF83 8DQ26, William Street, Caerphilly, CF83 8DQ
• Sold Dec 2025£172,000 | 3 Bed House66, James Street, Caerphilly, CF83 8FY66, James Street, Caerphilly, CF83 8FY
• Sold Jul 2025£175,000 | 3 Bed House84, William Street, Caerphilly, CF83 8FX84, William Street, Caerphilly, CF83 8FX
• Sold Jul 2025£160,000 | 3 Bed House72, William Street, Caerphilly, CF83 8FX72, William Street, Caerphilly, CF83 8FX
• Sold Apr 2025£141,000 | 3 Bed House47, Mary Street, Caerphilly, CF83 8HN47, Mary Street, Caerphilly, CF83 8HN
• Sold Dec 2024£162,000 | 3 Bed House73, James Street, Caerphilly, CF83 8FY73, James Street, Caerphilly, CF83 8FY
• Sold Nov 2024£187,500 | 3 Bed House25, Upper Glyn Gwyn Street, Caerphilly, CF83 8FZ25, Upper Glyn Gwyn Street, Caerphilly, CF83 8FZ
• Sold Sep 2024£182,500 | 3 Bed House91, James Street, Caerphilly, CF83 8FY91, James Street, Caerphilly, CF83 8FY
• Sold Aug 2024£157,000 | 3 Bed House41, William Street, Caerphilly, CF83 8DQ41, William Street, Caerphilly, CF83 8DQ
• Sold Aug 2024£180,000 | 3 Bed House48, Thomas Street, Caerphilly, CF83 8DP48, Thomas Street, Caerphilly, CF83 8DP
• Sold Jun 2024£134,950 | 3 Bed House86, James Street, Caerphilly, CF83 8FY86, James Street, Caerphilly, CF83 8FY
• Sold Aug 2023£140,000 | 3 Bed House48, Coronation Street, Caerphilly, CF83 8DL48, Coronation Street, Caerphilly, CF83 8DL
• Sold Dec 2022£160,000 | 3 Bed House66, William Street, Caerphilly, CF83 8FX66, William Street, Caerphilly, CF83 8FX
• Sold Mar 2022£130,000 | 3 Bed House64, James Street, Caerphilly, CF83 8FY64, James Street, Caerphilly, CF83 8FY
• Sold Mar 2022£149,000 | 3 Bed House74, James Street, Caerphilly, CF83 8FY74, James Street, Caerphilly, CF83 8FY
• Sold Dec 2021£149,000 | 3 Bed House87, James Street, Caerphilly, CF83 8FY87, James Street, Caerphilly, CF83 8FY
• Sold Nov 2021£140,000 | 3 Bed House92, William Street, Caerphilly, CF83 8FX92, William Street, Caerphilly, CF83 8FX
• Sold Oct 2021£135,000 | 3 Bed House63, James Street, Caerphilly, CF83 8FY63, James Street, Caerphilly, CF83 8FY

Our analysis of the public data ranks 90, William Street, Caerphilly as the 33rd largest and the 54th most expensive of the 71 addresses on William Street, Trethomas, Caerphilly, CF83.

Against the CF83 postcode district average, it is £61k less expensive than the typical property.

• Energlyn & Churchill Park

  |

  3.6 km away
• Caerphilly

  |

  3.7 km away
• Llanbradach

  |

  3.8 km away

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