Our Data Sources
4, William Street, Swansea has no records in the the Land Registry and a single entry in the EPC database dated March 2019.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 4, William Street, Swansea, we estimate a market value of £326,161 and a rental value of £1,664 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £288,885 and £1,474 per month respectively.
Plot Size
HM Land Registry records the plot of land for 4, William Street, Swansea as measuring 81 m2.
That makes it the 12th largest plot in the postcode, where all 16 other houses have recorded plot data.
Energy Efficiency
4, William Street, Swansea has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 13 Mar 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 139 properties similar to 4, William Street, Swansea have sold within a radius of 690 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 4th March 2026, was 46, Park Street, Swansea, SA3 4DA, a freehold house which sold for £280,000.
Read more about house prices in SA3.
- Sold Mar 2026£280,000 | 3 Bed House46, Park Street, Swansea, SA3 4DA46, Park Street, Swansea, SA3 4DA
- Sold Jan 2026£285,000 | 3 Bed House59, Gloucester Place, Swansea, SA3 4LQ59, Gloucester Place, Swansea, SA3 4LQ
- Sold Oct 2024£322,500 | 3 Bed House7, William Street, Swansea, SA3 4LJ7, William Street, Swansea, SA3 4LJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 16 addresses on William Street, Mumbles, Swansea, SA3, 4, William Street, Swansea comes out as the 13th largest and the 13th most expensive in our analysis of the public data.
It is also £58k less expensive than the average property across the SA3 district.
More reading links
Schools Nearby
Public Transport Nearby
- Swansea|7.0 km away
- Gowerton|8.7 km away
- Llansamlet|12.6 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
