Our Data Sources
51, William Street, Caerphilly has a single entry in the Land Registry from March 2007 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 51, William Street, Caerphilly is in very good condition we estimate a sale value of £358,646 and a rental value of £1,760 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £317,658 and a rental value of £1,559 per month.
Plot Size
According to data from HM Land Registry, 51, William Street, Caerphilly sits on a plot of 332 m2.
We have plot size data on 23 out of 28 other houses in the postcode and 51, William Street, Caerphilly sits on the 3rd largest plot.
Sold Prices
According to HM Land Registry, 51, William Street, Caerphilly was last sold on 23rd March 2007 for £177,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since March 2007, the market for similar properties has risen by 112.8%.
- Sold Mar 2007£177,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 8 sales of properties similar to 51, William Street, Caerphilly within a radius of 1.1 kilometres since 2010.
The most recent example is 9, St. Davids Drive, Caerphilly, CF83 8RG, a freehold house which sold for £300,000 on the 4th February 2026.
Read more about house prices in CF83.
- Sold Feb 2026£300,000 | 4 Bed House9, St. Davids Drive, Caerphilly, CF83 8RG9, St. Davids Drive, Caerphilly, CF83 8RG
- Sold Dec 2025£325,000 | 4 Bed House44, Summerfield Lane, Caerphilly, CF83 8RE44, Summerfield Lane, Caerphilly, CF83 8RE
- Sold Dec 2023£300,000 | 4 Bed House69, Ridgeway, Caerphilly, CF83 8RD69, Ridgeway, Caerphilly, CF83 8RD
- Sold Nov 2021£248,000 | 4 Bed House57, Ridgeway, Caerphilly, CF83 8RD57, Ridgeway, Caerphilly, CF83 8RD
- Sold Dec 2018£219,950 | 4 Bed House16, Dan Y Graig, Caerphilly, CF83 8RF16, Dan Y Graig, Caerphilly, CF83 8RF
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £202,720, ranging from £157,057 to £263,470.
- 53 William Street
3 Bed House | 11 m | Est. Value: £263,470
- 55 William Street
3 Bed House | 22 m | Est. Value: £253,055
- 30 Standard Street
3 Bed House | 27 m | Est. Value: £195,487
- 31 Standard Street
4 Bed House | 28 m | Est. Value: £218,880
- 27 Standard Street
3 Bed House | 30 m | Est. Value: £196,556
Location Comparison
William Street, Trethomas, Caerphilly, CF83 has a total of 71 addresses. According to our analysis of all the public data, 51, William Street, Caerphilly is the largest and the most expensive property on the street.
When compared to the postcode district it is £111k more expensive than the average property in CF83.
More reading links
Schools Nearby
Public Transport Nearby
- Energlyn & Churchill Park|3.6 km away
- Caerphilly|3.7 km away
- Llanbradach|3.8 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
