According to data from HM Land Registry, 16, William Street, Caerphilly sits on a plot of 111 m².

We have plot size data on 37 out of 42 other houses in the postcode and 16, William Street, Caerphilly sits on the 19th largest plot.

16, William Street, Caerphilly has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Oct 2024.

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

According to HM Land Registry, 16, William Street, Caerphilly was last sold on 5th August 2011 for £79,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since August 2011, the market for similar properties has risen by 127.2%.

• Sold Aug 2011£79,000

According to the Land Registry and our network of Estate Agents, there have been 225 sales of properties similar to 16, William Street, Caerphilly within a radius of 1.1 kilometres since 2022.

The most recent example is 12, Coronation Street, Caerphilly, CF83 8DL, a freehold house which sold for £149,000 on the 8th April 2026.

Read more about house prices in CF83.

• Sold Apr 2026£149,000 | 3 Bed House12, Coronation Street, Caerphilly, CF83 8DL12, Coronation Street, Caerphilly, CF83 8DL
• 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 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 Dec 2024£137,500 | 3 Bed House1, Thomas Street, Caerphilly, CF83 8DP1, 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£145,000 | 3 Bed House16, Mary Street, Caerphilly, CF83 8HN16, Mary Street, Caerphilly, CF83 8HN
• Sold Feb 2024£150,000 | 3 Bed House6, Mary Street, Caerphilly, CF83 8HN6, Mary Street, Caerphilly, CF83 8HN
• Sold Aug 2023£187,500 | 3 Bed House19, Mary Street, Caerphilly, CF83 8HN19, Mary Street, Caerphilly, CF83 8HN
• Sold Nov 2022£161,000 | 3 Bed House9, William Street, Caerphilly, CF83 8DQ9, William Street, Caerphilly, CF83 8DQ
• Sold Jun 2022£155,000 | 3 Bed House35, William Street, Caerphilly, CF83 8DQ35, William Street, Caerphilly, CF83 8DQ

William Street, Trethomas, Caerphilly, CF83 has a total of 71 addresses. According to our analysis of all the public data, 16, William Street, Caerphilly is the 29th largest and the 29th most expensive property on the street.

When compared to the postcode district it is £54k less expensive than the average property in CF83.

• Caerphilly

  |

  3.5 km away
• Energlyn & Churchill Park

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  3.5 km away
• Llanbradach

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  3.8 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.