49, William Street, Caerphilly occupies a 113 m² plot as recorded by HM Land Registry.

Of the 42 other houses in this postcode, 37 have recorded plot sizes, and this one ranks as the 15th largest.

49, William Street, Caerphilly has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 10 Aug 2021.

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

49, William Street, Caerphilly last changed hands on 24th November 2023, selling for £153,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 4 times since 1995.

The market for similar properties has risen by 29.5% since November 2023.

• Sold Nov 2023£153,000
• Sold Jan 2022£155,000
• Sold Jan 2014£112,000

Land Registry records and our Estate Agent network show 176 sales of comparable properties within 1.1 kilometres of 49, William Street, Caerphilly since 2021.

Most recently, 44, Mary Street, Caerphilly, CF83 8HN, a freehold house, sold at £170,000 on the 23rd February 2026.

Read more about house prices in CF83.

• 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£162,000 | 4 Bed House56, William Street, Caerphilly, CF83 8FX56, William Street, Caerphilly, CF83 8FX
• Sold Apr 2025£147,000 | 3 Bed House8, Thomas Street, Caerphilly, CF83 8DP8, 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£172,000 | 3 Bed House14, Standard Street, Caerphilly, CF83 8DE14, Standard Street, Caerphilly, CF83 8DE
• 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 Jun 2024£178,000 | 4 Bed House7, Coronation Street, Caerphilly, CF83 8DL7, Coronation Street, Caerphilly, CF83 8DL
• Sold Apr 2024£175,000 | 4 Bed House17, William Street, Caerphilly, CF83 8DQ17, William Street, Caerphilly, CF83 8DQ
• Sold Apr 2022£138,500 | 3 Bed House31, Mary Street, Caerphilly, CF83 8HN31, Mary Street, Caerphilly, CF83 8HN
• Sold Jan 2022£160,000 | 3 Bed House90, James Street, Caerphilly, CF83 8FY90, James Street, Caerphilly, CF83 8FY
• Sold Sep 2021£158,000 | 3 Bed House50, Mary Street, Caerphilly, CF83 8HN50, Mary Street, Caerphilly, CF83 8HN
• Sold Jun 2021£115,000 | 4 Bed House2, Coronation Street, Caerphilly, CF83 8DL2, Coronation Street, Caerphilly, CF83 8DL
• Sold Jun 2021£158,000 | 4 Bed House68, James Street, Caerphilly, CF83 8FY68, James Street, Caerphilly, CF83 8FY
• Sold Apr 2021£120,000 | 4 Bed House29, Mary Street, Caerphilly, CF83 8HN29, Mary Street, Caerphilly, CF83 8HN

Our analysis of the public data ranks 49, William Street, Caerphilly as the 11th largest and the 17th most expensive of the 71 addresses on William Street, Trethomas, Caerphilly, CF83.

Against the CF83 postcode district average, it is £43k less expensive than the typical property.

• Caerphilly

  |

  3.5 km away
• Energlyn & Churchill Park

  |

  3.5 km away
• Llanbradach

  |

  3.8 km away

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