Over the past 31 years, there have been 36 property sales recorded in the SA1 4NQ postcode area. The highest sale price reached £244,000, while the most recent sale was for a terraced house sold in January 2026 for £244,000.

The estimated average property value in SA1 4NQ currently stands at £205,001, which is approximately 14% lower than the city average - making it a relatively affordable option for buyers.

In terms of size, the average price per square metre is approximately £1,826.

Property prices in SA1 4NQ have risen by 4.9% over the past year , with a total increase of 36.9% over the past five years , and a long-term rise of 59.6% over the past decade .

The most common type of property sold in the area is terraced, making up around 97% of transactions , followed by detached.

Housing in SA1 4NQ is mixed, with 42% of homes being , indicating a diverse residential makeup.

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Property Sales

142 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 4bed
📐 1001 sq ft
Today
£166,354
streetscan.co.uk estimate
3 Jun 2016
£105,000
More details

143 St Helens Avenue, Swansea, SA1 4NQ

Today
£162,014
streetscan.co.uk estimate
11 Nov 2005
£95,000

144 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1302 sq ft
Today
£174,989
streetscan.co.uk estimate
26 Nov 2014
£108,000
More details

145 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 5bed
📐 1249 sq ft
Today
£247,966
streetscan.co.uk estimate
16 Oct 2023
£235,000
10 Jul 2015
£138,500
More details

147 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 4bed
📐 1173 sq ft
Today
£72,720
streetscan.co.uk estimate
27 May 2025
£71,566
More details

148 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1163 sq ft
Today
£215,927
streetscan.co.uk estimate
17 Jan 2011
£125,000
More details

149 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 5bed
📐 936 sq ft
Today
£133,043
streetscan.co.uk estimate
16 Mar 2006
£80,000
More details

150 St Helens Avenue, Swansea, SA1 4NQ

Today
£233,170
streetscan.co.uk estimate
15 Mar 2002
£59,000
24 Aug 2001
£38,500

151 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 4bed
📐 883 sq ft
Today
£117,616
streetscan.co.uk estimate
10 Jul 2020
£85,000
More details

152 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 7bed
📐 1302 sq ft
Today
£300,133
streetscan.co.uk estimate
25 Jul 2014
£190,000
13 Jul 2007
£148,500
More details

154 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1345 sq ft
Today
£201,532
streetscan.co.uk estimate
14 Mar 2022
£175,000
15 Feb 2006
£220,000
More details

155 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 5bed
📐 1109 sq ft
Today
£268,395
streetscan.co.uk estimate
3 Oct 2003
£104,000
More details

158 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1270 sq ft
Today
£239,630
streetscan.co.uk estimate
19 Apr 2010
£147,000
11 Apr 1997
£45,263
More details

159 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 7bed
📐 1507 sq ft
Today
£239,967
streetscan.co.uk estimate
15 Jan 2026
£244,000
22 Sep 2006
£147,500
More details

161 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 5bed
📐 1442 sq ft
Today
£218,303
streetscan.co.uk estimate
1 Nov 2024
£207,500
27 Aug 1999
£66,500
More details

162 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1098 sq ft
Today
£238,864
streetscan.co.uk estimate
6 May 2022
£215,000
14 Jul 2007
£189,500
View +1 more
More details

165 St Helens Avenue, Swansea, SA1 4NQ

Today
£257,040
streetscan.co.uk estimate
1 May 1998
£54,000
13 Apr 1995
£51,000

166 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 5bed
📐 1023 sq ft
Today
£162,027
streetscan.co.uk estimate
4 Nov 2014
£100,000
More details

167 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1292 sq ft
Today
£196,514
streetscan.co.uk estimate
25 Feb 2005
£100,000
More details

168 St Helens Avenue, Swansea, SA1 4NQ

🏠 Detached
🛏️ 5bed
📐 1475 sq ft
Today
£224,464
streetscan.co.uk estimate
14 Oct 2005
£133,000
More details

169 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1119 sq ft
Today
£252,141
streetscan.co.uk estimate
16 Jun 2021
£210,000
20 Nov 2009
£137,000
View +2 more
More details

170 St Helens Avenue, Swansea, SA1 4NQ

🏠 Terraced
🛏️ 6bed
📐 1313 sq ft
Today
£224,163
streetscan.co.uk estimate
29 Sep 1995
£45,000
More details

172 St Helens Avenue, Swansea, SA1 4NQ

Today
£190,896
streetscan.co.uk estimate
6 Dec 1996
£38,500

Area Insights

Data Sources

Properties at SA1 4NQ appear thirty-six times in the Land Registry records, with the latest transaction recorded on 15 Jan 2026. It also has nineteen Energy Performance Certificates (EPC) entries, the earliest dating back to 9 Jan 2019. 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.