Over the past 30 years, there have been 25 property sales recorded in the SA9 1AQ postcode area. The highest sale price reached £278,000, while the most recent sale was for a semi-detached house sold in March 2025 for £248,000.

The estimated average property value in SA9 1AQ currently stands at £237,719, which is roughly in line with the city average (within ±8%), suggesting property prices reflect broader market trends.

In terms of size, the average price per square metre is approximately £2,385.

Property prices in SA9 1AQ have risen by 1.5% over the past year , with a total increase of 29% over the past five years, and a long-term rise of 56.8% over the past decade.

100% of recorded transactions in the area were for semi-detached properties.

Housing in SA9 1AQ is predominantly owner-occupied, with an estimated 100% of homes being lived in by the owners.

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Property Sales

10 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 1163 sq ft
Today
£238,950
streetscan.co.uk estimate
29 Sep 2023
£229,950
More details

11 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 980 sq ft
Today
£216,416
streetscan.co.uk estimate
30 Sep 2016
£145,500
More details

12 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 6bed
📐 1003 sq ft
Today
£213,997
streetscan.co.uk estimate
27 Nov 2009
£134,000
More details

13 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 969 sq ft
Today
£256,770
streetscan.co.uk estimate
3 Aug 2022
£250,000
More details

16 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 1066 sq ft
Today
£217,368
streetscan.co.uk estimate
18 Aug 2015
£140,000
More details

18 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

Today
£203,011
streetscan.co.uk estimate
30 Apr 2021
£160,000

19 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 6bed
📐 1206 sq ft
Today
£292,366
streetscan.co.uk estimate
9 Sep 2011
£185,000
More details

20 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 969 sq ft
Today
£241,602
streetscan.co.uk estimate
10 Jan 2024
£230,000
More details

21 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 1173 sq ft
Today
£291,160
streetscan.co.uk estimate
26 Feb 2025
£278,000
29 Sep 1995
£57,500
More details

22 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 6bed
📐 1141 sq ft
Today
£256,952
streetscan.co.uk estimate
28 Mar 2025
£248,000
1 Mar 2017
£173,000
View +2 more
More details

23 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 1109 sq ft
Today
£270,765
streetscan.co.uk estimate
9 Jun 2017
£180,000
24 Mar 2000
£55,000
More details

24 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 960 sq ft
Today
£240,998
streetscan.co.uk estimate
12 Feb 2010
£150,000
More details

3 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 947 sq ft
Today
£212,400
streetscan.co.uk estimate
23 May 2018
£150,000
More details

4 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 1281 sq ft
Today
£238,057
streetscan.co.uk estimate
21 Oct 2019
£180,000
4 Aug 2017
£158,000
View +1 more
More details

5 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 5bed
📐 947 sq ft
Today
£238,535
streetscan.co.uk estimate
21 Aug 2019
£172,500
More details

6 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

🏠 Semi-detached
🛏️ 7bed
📐 1410 sq ft
Today
£305,172
streetscan.co.uk estimate
7 Feb 2019
£225,000
19 Sep 2011
£128,000
More details

8 Alder Avenue, Ystradgynlais, Swansea, Powys, SA9 1AQ

Today
£259,803
streetscan.co.uk estimate
22 Aug 2003
£114,000

Area Insights

Data Sources

Properties at SA9 1AQ appear twenty-five times in the Land Registry records, with the latest transaction recorded on 28 Mar 2025. It also has fifteen Energy Performance Certificates (EPC) entries, the earliest dating back to 23 Jun 2009. 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.