Our Data Sources
143, William Street, Swindon has 21 entries in the Land Registry , most recently in July 2011 and a single entry in the EPC database dated June 2023.
We combine this information with that 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 143, William Street, Swindon, we estimate a market value of £221,563 and a rental value of £1,246 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £196,241 and £1,103 per month respectively.
Plot Size
HM Land Registry records the plot of land for 143, William Street, Swindon as measuring 125 m2.
That makes it the 12th largest plot in the postcode, where 33 of the 36 other houses have recorded plot data.
Energy Efficiency
143, William Street, Swindon has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 14 Jun 2023.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 143, William Street, Swindon completed on 22nd July 2011 at £118,799 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 129.0% over the period since July 2011.
- Sold Jul 2011£118,799
- Sold Nov 1998£58,950
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 143, William Street, Swindon have sold within a radius of 380 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 17th October 2025, was 135, William Street, Swindon, SN1 5LQ, a freehold house which sold for £190,000.
Read more about house prices in SN1.
- Sold Oct 2025£190,000 | 3 Bed House135, William Street, Swindon, SN1 5LQ135, William Street, Swindon, SN1 5LQ
- Sold Aug 2025£200,000 | 3 Bed House34, William Street, Swindon, SN1 5LB34, William Street, Swindon, SN1 5LB
- Sold Mar 2025£205,000 | 3 Bed House134, William Street, Swindon, SN1 5LQ134, William Street, Swindon, SN1 5LQ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 190 addresses on William Street, Swindon, SN1, 143, William Street, Swindon comes out as the 67th largest and the 59th most expensive in our analysis of the public data.
It is also £42k less expensive than the average property across the SN1 district.
More reading links
Schools Nearby
- 300mRobert Le Kyng Primary School
- 1.0kmKing William Street Church of England Primary School
- 1.0kmHoly Rood Catholic Primary School
- 500mUTC Swindon
- 900mThe Commonweal School
- 1.7kmThe Deanery CofE Academy
More reading links
Public Transport Nearby
- 1.1kmSwindon (Wilts)
- 20.7kmKemble
- 23.9kmBedwyn
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.












