Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area	Last sold	Price paid	Floor area (m²) Floor area (sq ft)	£ per m² £ per sq ft	Type	Sold	m² sq ft	£/m² £/sq ft
22, Alder Avenue, Ystradgynlais, SA9 1AQ -	28 Mar 2025	£248,000	106 m² 1140 sqft	£2,339 £217	Semi-D (3 bed)
21, Alder Avenue, Ystradgynlais, SA9 1AQ -	26 Feb 2025	£278,000	109 m² 1173 sqft	£2,550 £236	Semi-D (3 bed)
20, Alder Avenue, Ystradgynlais, SA9 1AQ	10 Jan 2024	£230,000	90 m² 968 sqft	£2,555 £237	Semi-D (3 bed)
10, Alder Avenue, Ystradgynlais, SA9 1AQ	29 Sep 2023	£229,950	108 m² 1162 sqft	£2,129 £197	Semi-D (3 bed)
13, Alder Avenue, Ystradgynlais, SA9 1AQ -	03 Aug 2022	£250,000	90 m² 968 sqft	£2,777 £257	Semi-D (3 bed)
18, Alder Avenue, Ystradgynlais, SA9 1AQ	30 Apr 2021	£160,000			Semi-D (3 bed)
4, Alder Avenue, Ystradgynlais, SA9 1AQ -	21 Oct 2019	£180,000	119 m² 1280 sqft	£1,512 £140	Semi-D (3 bed)
5, Alder Avenue, Ystradgynlais, SA9 1AQ -	21 Aug 2019	£172,500	88 m² 947 sqft	£1,960 £182	Semi-D (3 bed)
6, Alder Avenue, Ystradgynlais, SA9 1AQ -	07 Feb 2019	£225,000	131 m² 1410 sqft	£1,717 £159	Semi-D (3 bed)
3, Alder Avenue, Ystradgynlais, SA9 1AQ	23 May 2018	£150,000	88 m² 947 sqft	£1,704 £158	Semi-D (3 bed)
23, Alder Avenue, Ystradgynlais, SA9 1AQ	09 Jun 2017	£180,000	103 m² 1108 sqft	£1,747 £162	Semi-D (3 bed)
11, Alder Avenue, Ystradgynlais, SA9 1AQ -	30 Sep 2016	£145,500	91 m² 979 sqft	£1,598 £148	Semi-D (3 bed)
16, Alder Avenue, Ystradgynlais, SA9 1AQ -	18 Aug 2015	£140,000	99 m² 1065 sqft	£1,414 £131	Semi-D (3 bed)
19, Alder Avenue, Ystradgynlais, SA9 1AQ -	09 Sep 2011	£185,000	112 m² 1205 sqft	£1,651 £153	Semi-D (3 bed)
24, Alder Avenue, Ystradgynlais, SA9 1AQ -	12 Feb 2010	£150,000	89 m² 957 sqft	£1,685 £156	Semi-D (3 bed)
12, Alder Avenue, Ystradgynlais, SA9 1AQ -	27 Nov 2009	£134,000	93 m² 1001 sqft	£1,440 £133	Semi-D (3 bed)
8, Alder Avenue, Ystradgynlais, SA9 1AQ	22 Aug 2003	£114,000			Semi-D (3 bed)
22, Alder Avenue -	£248,000 Mar-2025	106 1140	2,339 217
21, Alder Avenue -	£278,000 Feb-2025	109 1173	2,550 236
20, Alder Avenue	£230,000 Jan-2024	90 968	2,555 237
10, Alder Avenue	£229,950 Sep-2023	108 1162	2,129 197
13, Alder Avenue -	£250,000 Aug-2022	90 968	2,777 257
18, Alder Avenue	£160,000 Apr-2021
4, Alder Avenue -	£180,000 Oct-2019	119 1280	1,512 140
5, Alder Avenue -	£172,500 Aug-2019	88 947	1,960 182
6, Alder Avenue -	£225,000 Feb-2019	131 1410	1,717 159
3, Alder Avenue	£150,000 May-2018	88 947	1,704 158
23, Alder Avenue	£180,000 Jun-2017	103 1108	1,747 162
11, Alder Avenue -	£145,500 Sep-2016	91 979	1,598 148
16, Alder Avenue -	£140,000 Aug-2015	99 1065	1,414 131
19, Alder Avenue -	£185,000 Sep-2011	112 1205	1,651 153
24, Alder Avenue -	£150,000 Feb-2010	89 957	1,685 156
12, Alder Avenue -	£134,000 Nov-2009	93 1001	1,440 133
8, Alder Avenue	£114,000 Aug-2003

The data above for Alder Avenue can be visualised as a scatter graph, this will show price trends over time.

The average price per square metre (per square foot) in Alder Avenue, Ystradgynlais is £2,470 sqm (£229 per sq ft), this is from sold property prices of the 5 most recent sales.
The majority of homes in Ystradgynlais are now selling for between £1,560 and £2,500 per square metre (£144 and £232 per square foot) , find out more in this local analysis of SA9 1 (Ystradgynlais) house prices.
There are about 17 homes on Alder Avenue, we would have expected about 2 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 5 property sales in Alder Avenue, averaging about 1 home sales per year .
The average size of all the properties on Alder Avenue is 102 m2 (1,097 sqft).