Our Data Sources
12, William Street, Swansea has 2 entries in the Land Registry , most recently in October 2013 and a single entry in the EPC database dated June 2015.
We combine this information with that of neighbouring properties to estimate the property 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 12, William Street, Swansea is in very good condition we estimate a sale value of £167,665 and a rental value of £771 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £148,503 and a rental value of £683 per month.
Plot Size
According to data from HM Land Registry, 12, William Street, Swansea sits on a plot of 117 m2.
We have plot size data on 30 out of 32 other houses in the postcode and 12, William Street, Swansea sits on the 17th largest plot.
Energy Efficiency
12, William Street, Swansea has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Jun 2015.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 12, William Street, Swansea was last sold on 4th October 2013 for £124,950 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since October 2013, the market for similar properties has risen by 20.1%.
- Sold Oct 2013£124,950
- Sold Jun 2012£67,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 119 sales of properties similar to 12, William Street, Swansea within a radius of 450 metres over the last 2 years.
The most recent example is 5, Recorder Street, Swansea, SA1 3RX, a freehold house which sold for £145,000 on the 23rd January 2026.
Read more about house prices in SA1.
- Sold Jan 2026£145,000 | 3 Bed House5, Recorder Street, Swansea, SA1 3RX5, Recorder Street, Swansea, SA1 3RX
- Sold Nov 2024£132,000 | 3 Bed House156, Western Street, Swansea, SA1 3JZ156, Western Street, Swansea, SA1 3JZ
- Sold Jun 2023£171,500 | 3 Bed House6, Western Street, Swansea, SA1 3JZ6, Western Street, Swansea, SA1 3JZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
William Street, Swansea, SA1 has a total of 62 addresses. According to our analysis of all the public data, 12, William Street, Swansea is the 27th largest and the 26th most expensive property on the street.
When compared to the postcode district it is £8k more expensive than the average property in SA1.
More reading links
Schools Nearby
Public Transport Nearby
- Swansea|1.1 km away
- Llansamlet|6.7 km away
- Gowerton|7.0 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
