Over the past 30 years, there have been 59 property sales recorded in the SA1 4NN postcode area. The highest sale price reached £290,000, while the most recent sale was for a terraced house sold in September 2025 for £212,000.

The estimated average property value in SA1 4NN currently stands at £196,017, which is approximately 19.6% 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 £2,018.

Property prices in SA1 4NN have risen by 4.1% over the past year , with a total increase of 33.3% over the past five years, and a long-term rise of 48.8% over the past decade.

The most common type of property sold in the area is terraced, making up around 75% of transactions , followed by flat and other.

Housing in SA1 4NN is mixed, with 45% of homes being owner-occupied, indicating a diverse residential makeup.

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Property Sales

100 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 4bed
📐 937 sq ft
Today
£228,604
streetscan.co.uk estimate
22 Dec 2009
£137,500
More details

101 St Helens Avenue, Swansea, SA1 4NN

Today
£137,480
streetscan.co.uk estimate
5 Sep 2022
£136,000
21 Dec 2017
£119,950
30 Nov 2017
£137,750
30 May 2014
£215,000

Garage At The Back Of, 106 St Helens Avenue, Swansea, SA1 4NN

Today
£51,616
streetscan.co.uk estimate
13 Sep 2017
£40,000

67 St Helens Avenue, Swansea, SA1 4NN

Today
£112,549
streetscan.co.uk estimate
19 Oct 2017
£87,000

73 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1249 sq ft
Today
£257,534
streetscan.co.uk estimate
21 Mar 2014
£153,000
17 Aug 2001
£76,000
View +1 more
More details

74 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 3bed
📐 1044 sq ft
Today
£199,537
streetscan.co.uk estimate
3 May 2023
£178,000
14 Jan 2005
£150,000
View +2 more
More details

75 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1281 sq ft
Today
£198,710
streetscan.co.uk estimate
13 Nov 2020
£145,000
8 Jan 2010
£116,800
View +1 more
More details

76 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1119 sq ft
Today
£269,224
streetscan.co.uk estimate
8 May 2015
£159,200
More details

76B St Helens Avenue, Swansea, SA1 4NN

Today
£127,928
streetscan.co.uk estimate
31 Jul 2015
£90,000

77 St Helens Avenue, Swansea, SA1 4NN

🏠 Flat
🛏️ 4bed
📐 829 sq ft
Today
£128,426
streetscan.co.uk estimate
16 Mar 2017
£95,000
12 May 2014
£95,000
View +3 more
More details

77A St Helens Avenue, Swansea, SA1 4NN

🏠 Flat
🛏️ 4bed
📐 549 sq ft
Today
£104,552
streetscan.co.uk estimate
13 Nov 2017
£80,000
12 May 2014
£80,000
View +1 more
More details

78 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 6bed
📐 1216 sq ft
Today
£251,171
streetscan.co.uk estimate
27 Jan 2015
£152,000
23 Apr 1999
£43,250
More details

79 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1055 sq ft
Today
£171,723
streetscan.co.uk estimate
5 Jul 2024
£160,000
19 Mar 2009
£134,000
View +1 more
More details

80 St Helens Avenue, Swansea, SA1 4NN

Today
£239,438
streetscan.co.uk estimate
1 Nov 2007
£165,000

80B St Helens Avenue, Swansea, SA1 4NN

🏠 Flat
🛏️ bed
📐 1345 sq ft
Today
£59,075
streetscan.co.uk estimate
8 Oct 2013
£40,000
More details

81 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 6bed
📐 1109 sq ft
Today
£238,242
streetscan.co.uk estimate
12 Jul 2012
£140,000
More details

82 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 6bed
📐 1227 sq ft
Today
£170,135
streetscan.co.uk estimate
28 Aug 2015
£105,000
9 May 2008
£120,000
More details

83 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 6bed
📐 1345 sq ft
Today
£312,692
streetscan.co.uk estimate
24 Jun 2016
£195,000
6 Aug 2015
£138,000
View +2 more
More details

85 St Helens Avenue, Swansea, SA1 4NN

Today
£220,000
streetscan.co.uk estimate
15 Apr 2002
£55,000

86 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1076 sq ft
Today
£241,272
streetscan.co.uk estimate
1 Jul 2013
£140,000
1 Jul 1998
£50,000
More details

87 St Helens Avenue, Swansea, SA1 4NN

Today
£254,229
streetscan.co.uk estimate
13 Aug 2022
£250,000

88A St Helens Avenue, Swansea, SA1 4NN

🏠 Detached
🛏️ 3bed
📐 818 sq ft
Today
£274,754
streetscan.co.uk estimate
17 May 2019
£193,500
11 Dec 2007
£195,000
More details

89 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1119 sq ft
Today
£212,000
streetscan.co.uk estimate
30 Sep 2025
£212,000
11 Aug 2014
£149,000
View +2 more
More details

91 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1044 sq ft
Today
£233,166
streetscan.co.uk estimate
16 Dec 2011
£132,500
More details

92 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 5bed
📐 1238 sq ft
Today
£200,606
streetscan.co.uk estimate
28 Jul 2021
£166,000
More details

93 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 6bed
📐 1098 sq ft
Today
£171,049
streetscan.co.uk estimate
12 Nov 2001
£41,500
More details

95 St Helens Avenue, Swansea, SA1 4NN

🏠 Terraced
🛏️ 6bed
📐 1076 sq ft
Today
£225,833
streetscan.co.uk estimate
11 May 2011
£130,000
29 Jan 1999
£51,000
More details

96 St Helens Avenue, Swansea, SA1 4NN

Today
£258,083
streetscan.co.uk estimate
30 Sep 1996
£50,950

97 St Helens Avenue, Swansea, SA1 4NN

Today
£161,869
streetscan.co.uk estimate
28 Aug 2024
£155,000

Flat 3, Gabriel Lofts, 70 St Helens Avenue, Swansea, SA1 4NN

Today
£375,165
streetscan.co.uk estimate
20 Oct 2017
£290,000

Area Insights

Data Sources

Properties at SA1 4NN appear fifty-nine times in the Land Registry records, with the latest transaction recorded on 30 Sep 2025. It also has twenty Energy Performance Certificates (EPC) entries, the earliest dating back to 27 Jul 2021. 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.