Over the past 28 years, there have been 10 property sales recorded in the SN4 9QN postcode area. The highest sale price reached £1,000,000, while the most recent sale was for a detached bungalow sold in December 2025 for £361,616.

The estimated average property value in SN4 9QN currently stands at £696,745, which is approximately 143.5% higher than the city average, indicating a potentially more desirable or in-demand location.

In terms of size, the average price per square metre is approximately £6,303.

Property prices in SN4 9QN have risen by 1.9% over the past year , with a total increase of 22.7% over the past five years , and a long-term rise of 55.4% over the past decade .

The most common type of property sold in the area is detached, making up around 50% of transactions , followed by semi-detached.

Housing in SN4 9QN is predominantly owner-occupied, with an estimated 66% of homes being lived in by the owners.

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Property Sales

1, Costow, Swindon, SN4 9QN

Today
£466,436
streetscan.co.uk estimate
16 Apr 2003
£236,000
8 Jan 2001
£165,000
22 May 1998
£95,000

3 Costow Farm Cottages, Costow, Swindon, SN4 9QN

🏠 Detached
🛏️ 5bed
📐 1216 sq ft
Today
£470,476
streetscan.co.uk estimate
17 Dec 2021
£430,000
More details

4A, Costow, Swindon, SN4 9QN

Today
£912,076
streetscan.co.uk estimate
15 Nov 2022
£925,000

4, Old Barn, Costow, Swindon, SN4 9QN

🏠 Detached
🛏️ bed
📐 2228 sq ft
Today
£995,968
streetscan.co.uk estimate
5 Dec 2022
£1,000,000
More details

3A, The Bungalow, Costow, Swindon, SN4 9QN

🏠 Detached
🛏️ 3bed
📐 904 sq ft
Today
£356,563
streetscan.co.uk estimate
19 Dec 2025
£361,616
31 Jan 2006
£450,000
More details

Willow Cottage, Costow, Swindon, SN4 9QN

Today
£496,728
streetscan.co.uk estimate
27 Aug 2019
£396,000
19 Dec 2001
£242,000

Area Insights

Data Sources

Properties at SN4 9QN appear ten times in the Land Registry records, with the latest transaction recorded on 19 Dec 2025. It also has three Energy Performance Certificates (EPC) entries, the earliest dating back to 16 Nov 2018. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.