According to data from HM Land Registry, 18, William Street, Swindon sits on a plot of 117 m².

We have plot size data on 40 out of 47 other houses in the postcode and 18, William Street, Swindon sits on the 6th largest plot.

18, William Street, Swindon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 Dec 2019.

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

According to HM Land Registry, 18, William Street, Swindon was last sold on 15th January 1996 for £34,500 and was recorded as a freehold house.

The property has only had this single sale since 1995.

• Sold Jan 1996£34,500

According to the Land Registry and our network of Estate Agents, there have been 433 sales of properties similar to 18, William Street, Swindon within a radius of 370 metres since 2023.

The most recent example is 5, William Street, Swindon, SN1 5LB, a freehold house which sold for £165,000 on the 20th April 2026.

Read more about house prices in SN1.

• Sold Apr 2026£165,000 | 3 Bed House5, William Street, Swindon, SN1 5LB5, William Street, Swindon, SN1 5LB
• Sold Feb 2026£235,000 | 3 Bed House164, William Street, Swindon, SN1 5LQ164, William Street, Swindon, SN1 5LQ
• Sold Dec 2025£125,000 | 3 Bed House48-49, Radnor Street, Swindon, SN1 3PR48-49, Radnor Street, Swindon, SN1 3PR
• 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 Oct 2025£225,000 | 3 Bed House11, Shelley Street, Swindon, SN1 3PN11, Shelley Street, Swindon, SN1 3PN
• Sold Sep 2025£165,000 | 3 Bed House42, Radnor Street, Swindon, SN1 3PR42, Radnor Street, Swindon, SN1 3PR
• Sold Sep 2025£218,000 | 3 Bed House4, William Street, Swindon, SN1 5LB4, William Street, Swindon, SN1 5LB
• Sold Aug 2025£200,000 | 3 Bed House34, William Street, Swindon, SN1 5LB34, 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£210,000 | 3 Bed House119, William Street, Swindon, SN1 5LG119, William Street, Swindon, SN1 5LG
• Sold Jun 2025£180,000 | 3 Bed House21, Albion Street, Swindon, SN1 5LJ21, Albion Street, Swindon, SN1 5LJ
• Sold Mar 2025£205,000 | 3 Bed House134, William Street, Swindon, SN1 5LQ134, William Street, Swindon, SN1 5LQ
• Sold Sep 2024£227,000 | 3 Bed House28, Radnor Street, Swindon, SN1 3PR28, Radnor Street, Swindon, SN1 3PR
• Sold Apr 2024£200,000 | 3 Bed House142, William Street, Swindon, SN1 5LQ142, William Street, Swindon, SN1 5LQ
• Sold Apr 2024£186,000 | 3 Bed House152, Albion Street, Swindon, SN1 5LP152, Albion Street, Swindon, SN1 5LP
• Sold Jan 2024£204,000 | 3 Bed House159, William Street, Swindon, SN1 5LQ159, William Street, Swindon, SN1 5LQ
• Sold Dec 2023£222,000 | 3 Bed House9, William Street, Swindon, SN1 5LB9, William Street, Swindon, SN1 5LB
• Sold Oct 2023£217,000 | 3 Bed House143, William Street, Swindon, SN1 5LQ143, William Street, Swindon, SN1 5LQ
• Sold Jul 2023£175,000 | 3 Bed House40, Radnor Street, Swindon, SN1 3PR40, Radnor Street, Swindon, SN1 3PR

William Street, Swindon, SN1 has a total of 190 addresses. According to our analysis of all the public data, 18, William Street, Swindon is the 66th largest and the 95th most expensive property on the street.

When compared to the postcode district it is £49k less expensive than the average property in SN1.

• 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

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.