HM Land Registry records the plot of land for 12, William Street, Swindon as measuring 115 m².

That makes it the 7th largest plot in the postcode, where 40 of the 47 other houses have recorded plot data.

12, William Street, Swindon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Sep 2015.

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

The most recent sale of 12, William Street, Swindon completed on 24th March 2016 at £142,250 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 70.7% over the period since March 2016.

• Sold Mar 2016£142,250

Since 2022 401 properties similar to 12, William Street, Swindon have sold within a radius of 360 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 6th February 2026, was 164, William Street, Swindon, SN1 5LQ, a freehold house which sold for £235,000.

Read more about house prices in SN1.

• Sold Feb 2026£235,000 | 3 Bed House164, William Street, Swindon, SN1 5LQ164, William Street, Swindon, SN1 5LQ
• Sold Nov 2025£185,000 | 3 Bed House134, Albion Street, Swindon, SN1 5LP134, Albion Street, Swindon, SN1 5LP
• Sold Oct 2025£190,000 | 3 Bed House135, William Street, Swindon, SN1 5LQ135, William Street, Swindon, SN1 5LQ
• Sold Sep 2025£218,000 | 3 Bed House4, William Street, Swindon, SN1 5LB4, William Street, Swindon, SN1 5LB
• Sold Jul 2025£180,000 | 3 Bed House72, Radnor Street, Swindon, SN1 3PS72, Radnor Street, Swindon, SN1 3PS
• Sold Jun 2025£180,000 | 3 Bed House21, Albion Street, Swindon, SN1 5LJ21, Albion Street, Swindon, SN1 5LJ
• Sold Mar 2025£185,000 | 3 Bed House135, Albion Street, Swindon, SN1 5LP135, Albion Street, Swindon, SN1 5LP
• Sold Mar 2025£207,000 | 3 Bed House10, Radnor Street, Swindon, SN1 3PR10, Radnor Street, Swindon, SN1 3PR
• Sold Jan 2025£195,000 | 3 Bed House145, Albion Street, Swindon, SN1 5LP145, Albion Street, Swindon, SN1 5LP
• Sold Jan 2025£185,000 | 3 Bed House77, Radnor Street, Swindon, SN1 3PS77, Radnor Street, Swindon, SN1 3PS
• Sold Apr 2024£200,000 | 3 Bed House142, William Street, Swindon, SN1 5LQ142, William Street, Swindon, SN1 5LQ
• Sold Dec 2023£235,000 | 3 Bed House152, William Street, Swindon, SN1 5LQ152, William Street, Swindon, SN1 5LQ
• Sold Nov 2023£190,000 | 3 Bed House2, William Street, Swindon, SN1 5LB2, William Street, Swindon, SN1 5LB
• Sold Aug 2023£186,000 | 3 Bed House30, Albion Street, Swindon, SN1 5LJ30, Albion Street, Swindon, SN1 5LJ
• Sold Jul 2023£195,000 | 3 Bed House75, Radnor Street, Swindon, SN1 3PS75, Radnor Street, Swindon, SN1 3PS
• Sold May 2023£202,000 | 3 Bed House35, Albion Street, Swindon, SN1 5LJ35, Albion Street, Swindon, SN1 5LJ
• Sold Apr 2023£195,000 | 3 Bed House16, Albion Street, Swindon, SN1 5LJ16, Albion Street, Swindon, SN1 5LJ
• Sold Feb 2023£210,000 | 3 Bed House11, Radnor Street, Swindon, SN1 3PR11, Radnor Street, Swindon, SN1 3PR
• Sold Nov 2022£227,000 | 3 Bed House31, William Street, Swindon, SN1 5LB31, William Street, Swindon, SN1 5LB
• Sold Jul 2022£215,000 | 3 Bed House22, Albion Street, Swindon, SN1 5LJ22, Albion Street, Swindon, SN1 5LJ

Of the 190 addresses on William Street, Swindon, SN1, 12, William Street, Swindon comes out as the 130th largest and the 138th most expensive in our analysis of the public data.

It is also £59k less expensive than the average property across the SN1 district.

• Robert Le Kyng Primary School

  300 m away
• King William Street Church of England Primary School

  1.0 km away
• Holy Rood Catholic Primary School

  1.0 km away

• UTC Swindon

  600 m away
• The Commonweal School

  900 m away
• The Deanery CofE Academy

  1.6 km away

• Swindon (Wilts)

  |

  1.1 km away
• Kemble

  |

  20.7 km away
• Bedwyn

  |

  23.8 km away

The flood risk here is rated Very Low, based on Environment Agency data.