Over the past 29 years, there have been 30 property sales recorded in the SA1 8NJ postcode area. The highest sale price reached £140,000, while the most recent sale was for a terraced house sold in March 2026 for £129,500.

The estimated average property value in SA1 8NJ currently stands at £140,730, which is approximately 41% 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 £1,638.

Property prices in SA1 8NJ have risen by 5% over the past year , with a total increase of 39.6% over the past five years , and a long-term rise of 64.6% over the past decade .

100% of recorded transactions in the area were for terraced properties.

Housing in SA1 8NJ is predominantly owner-occupied, with an estimated 61% of homes being lived in by the owners.

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Property Sales

11 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 4bed
📐 947 sq ft
Today
£91,427
streetscan.co.uk estimate
15 Mar 2001
£21,000
More details

13 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 4bed
📐 990 sq ft
Today
£172,985
streetscan.co.uk estimate
26 Nov 2008
£115,000
26 Sep 2008
£67,500
More details

2 Gelli Street, Port Tennant, Swansea, SA1 8NJ

Today
£141,293
streetscan.co.uk estimate
3 Apr 2020
£100,000
17 Jan 2006
£80,100
14 May 2004
£82,500
24 Aug 2001
£15,000
6 Apr 2001
£20,000

21 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 5bed
📐 947 sq ft
Today
£170,522
streetscan.co.uk estimate
31 Aug 2007
£114,000
13 Oct 2006
£87,950
More details

23 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 5bed
📐 1012 sq ft
Today
£193,417
streetscan.co.uk estimate
8 Nov 2017
£127,500
23 Jul 2013
£108,000
View +1 more
More details

3 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 5bed
📐 1033 sq ft
Today
£141,518
streetscan.co.uk estimate
13 Sep 2024
£137,950
30 Jun 2017
£75,000
More details

31 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 5bed
📐 797 sq ft
Today
£113,936
streetscan.co.uk estimate
14 Feb 2003
£35,000
More details

35 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 4bed
📐 850 sq ft
Today
£134,271
streetscan.co.uk estimate
13 Jan 2025
£127,000
More details

37 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 4bed
📐 807 sq ft
Today
£161,416
streetscan.co.uk estimate
8 Oct 2021
£137,000
28 Feb 2019
£105,000
View +1 more
More details

38 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 4bed
📐 797 sq ft
Today
£144,043
streetscan.co.uk estimate
30 Oct 2013
£85,000
22 Feb 2002
£35,000
More details

40 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 4bed
📐 818 sq ft
Today
£108,287
streetscan.co.uk estimate
9 Aug 2024
£104,950
18 Jun 1999
£27,000
More details

42 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 6bed
📐 1109 sq ft
Today
£204,836
streetscan.co.uk estimate
30 Apr 2019
£140,000
More details

7 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 3bed
📐 926 sq ft
Today
£129,500
streetscan.co.uk estimate
19 Mar 2026
£129,500
27 Apr 2012
£92,500
View +1 more
More details

9 Gelli Street, Port Tennant, Swansea, SA1 8NJ

🏠 Terraced
🛏️ 4bed
📐 1066 sq ft
Today
£94,309
streetscan.co.uk estimate
15 Jan 2024
£87,000
26 Mar 1997
£25,000
More details

Area Insights

Data Sources

Properties at SA1 8NJ appear thirty times in the Land Registry records, with the latest transaction recorded on 19 Mar 2026. It also has thirteen Energy Performance Certificates (EPC) entries, the earliest dating back to 13 Aug 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.