Flat 4, 81A, William Street, Swindon has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 Jan 2026.

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

Land Registry records and our Estate Agent network show 33 sales of comparable properties within 420 metres of Flat 4, 81A, William Street, Swindon since 2014.

Most recently, 50, William Street, Swindon, SN1 5LB, a leasehold flat, sold at £106,000 on the 15th May 2026.

Read more about house prices in SN1.

• Sold May 2026£106,000 | 2 Bed Flat50, William Street, Swindon, SN1 5LB50, William Street, Swindon, SN1 5LB
• Sold Apr 2026£107,000 | 1 Bed FlatFlat 1, 57, Exmouth Street, Swindon, SN1 3PUFlat 1, 57, Exmouth Street, Swindon, SN1 3PU
• Sold Feb 2026£78,750 | 1 Bed Flat32, The Heights, Swindon, SN1 4NN32, The Heights, Swindon, SN1 4NN
• Sold Aug 2025£85,000 | 1 Bed Flat10, Erin Court, Swindon, SN1 4NS10, Erin Court, Swindon, SN1 4NS
• Sold Apr 2025£105,000 | 1 Bed Flat13, Erin Court, Swindon, SN1 4NS13, Erin Court, Swindon, SN1 4NS
• Sold Jul 2024£90,000 | 1 Bed Flat26, The Heights, Swindon, SN1 4NN26, The Heights, Swindon, SN1 4NN
• Sold Aug 2023£110,000 | 1 Bed FlatFlat 7, Cambria House, The Moorings, Swindon, SN1 5ABFlat 7, Cambria House, The Moorings, Swindon, SN1 5AB
• Sold Aug 2023£65,000 | 1 Bed Flat7, The Heights, Swindon, SN1 4NN7, The Heights, Swindon, SN1 4NN
• Sold Apr 2022£76,000 | 1 Bed Flat27, The Heights, Swindon, SN1 4NN27, The Heights, Swindon, SN1 4NN
• Sold Aug 2021£70,000 | 1 Bed Flat3, The Heights, Swindon, SN1 4NN3, The Heights, Swindon, SN1 4NN
• Sold Aug 2021£91,000 | 1 Bed Flat30, The Heights, Swindon, SN1 4NN30, The Heights, Swindon, SN1 4NN
• Sold Jul 2019£62,500 | 2 Bed Flat10, Redcross Place, Swindon, SN1 3QF10, Redcross Place, Swindon, SN1 3QF
• Sold May 2019£77,500 | 1 Bed Flat4, Erin Court, Swindon, SN1 4NS4, Erin Court, Swindon, SN1 4NS
• Sold Apr 2019£68,000 | 1 Bed Flat15, Erin Court, Swindon, SN1 4NS15, Erin Court, Swindon, SN1 4NS
• Sold Nov 2017£79,500 | 2 Bed Flat19, The Heights, Swindon, SN1 4NN19, The Heights, Swindon, SN1 4NN
• Sold Aug 2017£70,000 | 1 Bed Flat17, Erin Court, Swindon, SN1 4NS17, Erin Court, Swindon, SN1 4NS
• Sold Oct 2015£72,000 | 1 Bed Flat16, Erin Court, Swindon, SN1 4NS16, Erin Court, Swindon, SN1 4NS
• Sold Nov 2014£58,000 | 1 Bed Flat18, Erin Court, Swindon, SN1 4NS18, Erin Court, Swindon, SN1 4NS
• Sold Mar 2014£50,000 | 2 Bed Flat1, Erin Court, Swindon, SN1 4NS1, Erin Court, Swindon, SN1 4NS
• Sold Jan 2014£77,000 | 1 Bed FlatFlat 8, Cambria House, The Moorings, Swindon, SN1 5ABFlat 8, Cambria House, The Moorings, Swindon, SN1 5AB

Our analysis of the public data ranks Flat 4, 81A, William Street, Swindon as the 183rd largest and the 186th most expensive of the 190 addresses on William Street, Swindon, SN1.

Against the SN1 postcode district average, it is £152k less expensive than the typical property.

• Robert Le Kyng Primary School

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

  1.1 km away
• Holy Rood Catholic Primary School

  1.2 km away

• UTC Swindon

  800 m away
• The Commonweal School

  800 m away
• The Deanery CofE Academy

  1.4 km away

• Swindon (Wilts)

  |

  1.4 km away
• Kemble

  |

  20.7 km away
• Pewsey

  |

  23.7 km away

Environment Agency data suggests this area has a Very Low risk of flooding.