The median home in Treharris sells for £136,000
That is the middle of 156 standard sales recorded by HM Land Registry from September 2023 to August 2026, against £277,000 in the typical UK town. The typical home sells for 3.5 times as much as in 1995. Below: what each type of home sells for, the spread of prices, every year since 1995, new builds, the busiest streets and the neighbours. Rents and council tax are on Cost of living.
Two thirds of Treharris’s sales are terraced houses
156 homes sold in three years: 27 detached houses, 31 semi-detached houses and 98 terraced houses.
median sale · 27 sold in 3 years
- Middle half
- £275K–£370K
median sale · 31 sold in 3 years
- Middle half
- £165K–£240K
- Last 12 months
- £195K7 sold
median sale · 98 sold in 3 years
- Middle half
- £100K–£137K
- Last 12 months
- £120K31 sold
A terraced town: two thirds of homes sold are terraced
Standard sales, Sep 2023 to Aug 2026. A median needs 5 sales of a type; “middle half” is the 25th to 75th percentile of 10 or more.
Half of Treharris’s homes sold for between £110K and £210K
One sale in ten was under £90K and one in ten over £305K. 82% sold for under £250K.
The median, £136,000, sits in the £100–150K band
156 standard sales. Each bar is the number sold in that price band; the darker bar holds the median.
The typical home costs 3.5 times as much as in 1995, a slower rise than Wales’s
Land Registry has recorded every sale since 1995. The median went from £36,500 in 1995 to £128,000 in the last 12 months (£96,500 in 2019).
Fewer homes sell than in most years
39 sales in the last 12 months, against 112 in 1999, the busiest year, and 42 in 2008. Sales fell by 58% from 2007 to 2009 in the financial crisis, and the median by 12%. 2021, the stamp duty holiday, saw 73% more sales than 2020.
Treharris costs less than Wales as a whole
Median sale price each calendar year: Treharris, every standard sale in Wales, and the typical UK town (the middle of the town medians, towns of 2,500 or more).
Terraced houses rose the most since 1995
| 1995 | 2000 | 2005 | 2010 | 2015 | 2020 | Last 12 months | |
|---|---|---|---|---|---|---|---|
| Semi-detached houses | £42K | £49K | £93K | £100K | £132K | £157K | £195K |
| Terraced houses | £22K | £30K | £72K | £70K | £80K | £94K | £120K |
Calendar years; a year’s median needs 5 sales of the type, so gaps are years with fewer.
Prices are as paid, not adjusted for inflation. Standard (category A) sales only; Land Registry adds a sale when it is registered, so the newest months fill in later.
Hardly any new homes: 0% of sales in the last 12 months
132 new homes have been sold in Treharris since 1995; the share peaked at 32% in 1996.
Calendar years with 10 or more sales, then the last 12 months.
1% of sales were leasehold
Nearly every flat in England and Wales is leasehold; among houses, 0.6% sold leasehold in Treharris. A leasehold buyer owns the home for a fixed term and may pay ground rent and service charges; check the lease before you buy.
Ty Llwyd Parc is Treharris’s busiest street, with 9 sales in three years
9 streets had five or more sales from Sep 2023 to Aug 2026. A busy street is often a new estate selling its first homes, or a long road of terraces and flats.
| # | Street | Postcode area | Sales | Median | Homes |
|---|---|---|---|---|---|
| 1 | Ty Llwyd Parc | CF46 | 9 | £215,000 | Mostly semi-detached houses |
| 2 | Brynteg | CF46 | 9 | £131,000 | Mostly terraced houses |
| 3 | Fell Street | CF46 | 9 | £120,000 | Mostly terraced houses |
| 4 | Thornwood Place | CF46 | 8 | £132,497 | Mostly terraced houses |
| 5 | Evan Street | CF46 | 7 | £110,000 | Mostly terraced houses |
| 6 | Wingfield Terrace | CF46 | 6 | £160,000 | Mostly semi-detached houses |
| 7 | Pritchard Street | CF46 | 6 | £105,500 | Mostly terraced houses |
| 8 | Springfield Rise | CF46 | 5 | £336,000 | Mostly detached houses |
| 9 | Cilhaul | CF46 | 5 | £122,000 | Mostly terraced houses |
Standard sales with a street name, grouped by street and postcode district (Sep 2023 to Aug 2026); a name used in two districts shows the district. Medians only: we don’t list individual sales.
Treharris is the 18th most expensive of 32 towns in Mid Glamorgan
Treharris is in the middle of Mid Glamorgan’s towns to buy in; the typical UK town’s median is £277,000.
Towns of 2,500 or more in Mid Glamorgan with 10+ standard sales; each links to its own Housing page.
Treharris’s neighbours
The nearest built-up areas, from ONS’s 2022 boundaries.
| Town | Miles | Median | Sold, 12 mo | Since 2016 |
|---|---|---|---|---|
| Treharris | — | £136K | 39 | +39% |
| Trelewis | 0.6 | £155K | 18 | −23% |
| Nelson | 1.3 | £193K | 46 | +50% |
| Abercynon | 1.4 | £130K | 55 | +65% |
| Gelligaer | 2.2 | £148K | 5 | — |
| Aberfan | 2.6 | £120K | 18 | +54% |
| Bedlinog | 2.8 | £100K | 14 | +59% |
| Pen-pedair-heol | 2.8 | £206K | 46 | +61% |
Median: standard sales over three years (10+ needed). Since 2016: the median over three years against 2016’s. Miles: centre to centre.
Questions about property prices in Treharris
What is the average house price in Treharris?
The median home in Treharris sold for £136,000 from September 2023 to August 2026, across 156 standard sales (£128,000 in the last 12 months). By type: detached houses £305,000, semi-detached houses £200,000 and terraced houses £120,000.
Are house prices going up in Treharris?
The median was £140,000 in 2025, up 8% on 2024 (£130,000), and £128,000 in the last 12 months. A town’s median moves with the mix of homes sold each year as well as with prices.
How many homes sell in Treharris each year?
39 standard sales were recorded in the last 12 months, against an average of 68 a year since 2015. Repossessions, company purchases and other non-standard sales aren’t counted.
What are the most expensive streets in Treharris?
Among streets with five or more sales in three years: Springfield Rise (CF46, £336,000), Ty Llwyd Parc (CF46, £215,000) and Wingfield Terrace (CF46, £160,000).
Is Treharris expensive for Mid Glamorgan?
Treharris is the 18th most expensive of 32 towns of 2,500 or more in Mid Glamorgan by median sale price.
Sources: HM Land Registry Price Paid, every standard sale since January 1995 (yearly files of 28 September 2026), inside the ONS 2022 built-up-area boundary by postcode (ONS Postcode Directory) · TownRatings grades: our own summary of the data, ranked against UK towns only. All under the Open Government Licence v3.0.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Postcodes placed with the ONS Postcode Directory (contains OS data © Crown copyright and database right 2026; contains Royal Mail data © Royal Mail copyright and database right 2026).
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.