45, William Street, Caerphilly has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Jul 2013.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

Since 2022 245 properties similar to 45, William Street, Caerphilly have sold within a radius of 1.1 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 23rd March 2026, was 42, Mary Street, Caerphilly, CF83 8HN, a freehold house which sold for £188,000.

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 Oct 2025£154,000 | 3 Bed House6, William Street, Caerphilly, CF83 8DQ6, William Street, Caerphilly, CF83 8DQ
• Sold Jul 2025£160,000 | 3 Bed House72, William Street, Caerphilly, CF83 8FX72, William Street, Caerphilly, CF83 8FX
• Sold Jun 2025£155,000 | 3 Bed House11, Thomas Street, Caerphilly, CF83 8DP11, Thomas Street, Caerphilly, CF83 8DP
• Sold Apr 2025£141,000 | 3 Bed House47, Mary Street, Caerphilly, CF83 8HN47, Mary Street, Caerphilly, CF83 8HN
• Sold Apr 2025£147,000 | 3 Bed House8, Thomas Street, Caerphilly, CF83 8DP8, Thomas Street, Caerphilly, CF83 8DP
• Sold Dec 2024£168,650 | 3 Bed House30, Thomas Street, Caerphilly, CF83 8DP30, Thomas Street, Caerphilly, CF83 8DP
• Sold Dec 2024£162,000 | 3 Bed House73, James Street, Caerphilly, CF83 8FY73, James Street, Caerphilly, CF83 8FY
• Sold Nov 2024£149,500 | 3 Bed House34, Thomas Street, Caerphilly, CF83 8DP34, Thomas Street, Caerphilly, CF83 8DP
• Sold Oct 2024£160,000 | 3 Bed House13, William Street, Caerphilly, CF83 8DQ13, William Street, Caerphilly, CF83 8DQ
• Sold Sep 2024£163,500 | 3 Bed House20, Mary Street, Caerphilly, CF83 8HN20, Mary Street, Caerphilly, CF83 8HN
• 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 Feb 2024£150,000 | 3 Bed House6, Mary Street, Caerphilly, CF83 8HN6, Mary Street, Caerphilly, CF83 8HN
• Sold Nov 2023£153,000 | 3 Bed House49, William Street, Caerphilly, CF83 8DQ49, William Street, Caerphilly, CF83 8DQ
• Sold Aug 2023£187,500 | 3 Bed House19, Mary Street, Caerphilly, CF83 8HN19, Mary Street, Caerphilly, CF83 8HN
• Sold Jun 2022£155,000 | 3 Bed House35, William Street, Caerphilly, CF83 8DQ35, William Street, Caerphilly, CF83 8DQ

Of the 71 addresses on William Street, Trethomas, Caerphilly, CF83, 45, William Street, Caerphilly comes out as the 26th largest and the 25th most expensive in our analysis of the public data.

It is also £51k less expensive than the average property across the CF83 district.

• Caerphilly

  |

  3.5 km away
• Energlyn & Churchill Park

  |

  3.5 km away
• Llanbradach

  |

  3.8 km away

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