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Ystradgynlais House Prices

The average house price in Ystradgynlais is £138,333 using HM Land Registry data.

The average property price increased by £16,063 (8.94%) over the last 5 years and increased by £3,211 (1.67%) over the last 12 months.

Over the last year, there were 35 residential property sales – a decrease of 7 transactions (-20.00%) relative to the previous year. The majority of house sales (12) were in the £134,000 - £178,000 range. Then came properties in the £90,000 - £134,000 range, where 7 were sold within this price bracket.

Excluding fall throughs, properties are taking an average of 100 days to sell (from being listed to completion) and the average difference between asking and sold prices is £-9,035 (-4%).

In Nov 2025, there were 5 new estate agency instructions, 2 agreed home sales and 1 property price reductions.

5-Year Average Property Prices in Ystradgynlais

8.94%

Property prices in Ystradgynlais increased by 8.94% in last 5 years.

The trend shows the general price tendency over the last 5 years, ignoring all month-to-month fluctuations where anomalies - typically over or underpriced property sales - can skew results. These monthly variations typically do not have any long-term relevance.

We have used linear regression method. The volume of sales in a month is used to put more weight on months with a larger number of properties sold. Additionally, weighting decreases the impact of months with low sales volumes as well as the most recent month - which may consist of incomplete data. Such months have a higher variation of average sale values which may conceal the underlying trend.

From a statistical perspective, we use the least squares method to fit the trend line and weights are equal to the volume of sales squared. The volume of sales is not shown explicitly in the above plot. Also note the time lag for HM Land Registry data to appear (typically 2 to 3 months).

Average Property Prices in Ystradgynlais Over the Last Year

1.67%

Property prices in Ystradgynlais increased by 1.67% in last 12 months.

The trend shows the general price tendency over the last 12 months, ignoring all month-to-month fluctuations where anomalies - typically over or underpriced property sales - can skew results. These monthly variations typically do not have any long-term relevance.

Property Market Heat Gauge for Ystradgynlais - Nov 2025

Our Property Market Heat Gauge looks at how long properties in your postcode district have been on the open market before being changed to sold 'Subject to Contract' ('STC') or 'Under Offer' on Rightmove (the UK's leading property portal).

At 81 to 100 days, the broad evidence suggests a very slow moving market. This can often be due to estate agency over-valuations out of sync with the realities, a notable market slowdown or a combination of both. In such scenarios, vendors may either choose to wait for the market to pick up (which may result in relisting the property at a later date). Those committed to selling will often need to drop the price to a level that will entice genuine homebuyer interest or approach a sell house fast or auction company like Property Solvers.

Please note that this is not an indicator of how quickly property sales are taking to complete (i.e. to go through the whole conveyancing process). This measurement also does not take into account the risk of home sales falling through.

No. of New Instructions Over the Last 12 Months in Ystradgynlais

Using local estate agency reported data, this chart illustrates the number of properties that have come on to the market.

No. of Agreed Home Sales Over the Last 12 Months in Ystradgynlais

Using local estate agency reported data, this chart illustrates the number of property sales agreed. Note that these figures are not fully reflective of properties completed (sold and registered as such at HM Land Registry).

No. of Properties with Price Reductions in Ystradgynlais

Using local estate agency reported data, this chart illustrates the number of properties which have been seen their prices dropped (typically due to a lack of buyer interest).

Average Annual House Prices in the Ystradgynlais since 1995

Using HM Land Registry data, this chart displays average annual house prices in the Ystradgynlais area since 1995.

Recent Property Sales in Ystradgynlais

Address	Initial Price	Sold Price	Price Change	First Listed Date	Sold Date	Days to Sell
35 Cwm Tawe Road, Pen-rhos, Swansea, SA9 1QU	£155,000	£150,000	-£5,000	24 Apr 2025	31 Oct 2025	190 Days
18 Dreflan, Cwmgiedd, Swansea, SA9 1LU	£85,000	£77,000	-£8,000	20 Mar 2025	01 Aug 2025	134 Days
46 Station Road, Swansea, SA9 1NX	£210,000	£197,500	-£12,500	17 Sep 2024	29 May 2025	254 Days
11 Heol Glantawe, Ystradgynlais, SA9 1ES	£130,000	£115,000	-£15,000	22 Jan 2025	25 Apr 2025	93 Days
15 Isyrhos, Caerbont, Swansea, SA9 1SS	£200,000	£192,000	-£8,000	18 Sep 2024	16 Apr 2025	210 Days

Most Expensive Streets in Ystradgynlais

Postcode	Street	Area	Average	No. of Sales
SA9 1PJ	Station Road	Swansea	£336,500	4
SA9 1QT	Brecon Road	Ystradgynlais	£290,250	4
SA9 1SW	Caerbont	Abercrave	£274,000	4
SA9 1NZ	Station Road	Swansea	£266,750	4
SA9 1QU	Cwm Tawe Road	Pen-rhos	£248,214	7
SA9 1LP	Heol Giedd	Swansea	£244,500	4
SA9 1PL	Station Road	Swansea	£227,650	3
SA9 1QX	Brecon Road	Ystradgynlais	£227,500	4
SA9 1RB	Waun Gyrlais	Pen-rhos	£226,666	3
SA9 1QL	Brecon Road	Ystradgynlais	£210,150	6

Least Expensive Streets in Ystradgynlais

Postcode	Street	Area	Average	No. of Sales
SA9 1JA	Pen-y-bryn	Swansea	£78,666	3
SA9 1QR	Min-y-rhos	Swansea	£93,500	6
SA9 1RA	Dolfaen	Swansea	£104,000	5
SA9 1QS	Dolfaen	Swansea	£104,916	6
SA9 1LG	Pelican Street	Swansea	£122,666	3
SA9 1HY	Ael-y-bryn	Swansea	£128,812	4
SA9 1HT	Lluest	Swansea	£130,575	6
SA9 1LR	Plasycoed	U0383 From Junction With C0200 To Plasycoed	£135,875	4
SA9 1HJ	Brecon Road	Ystradgynlais	£136,333	3
SA9 1SS	Isyrhos	Caerbont	£144,833	3