House prices in Old St MellonsSold prices and price per sq ft
Wales · Cardiff
In brief
- The median home in Old St Mellons sold for £298,000 between July 2025 and June 2026, based on 90 sales registered with HM Land Registry.
- In Cardiff, prices rose by 2.7% in the year to July 2026, according to the UK House Price Index.
Median price
£298,000
July 2025 to June 2026
Price per sq ft and per m²
We work out the price per sq ft from sales matched to the floor area on their energy certificate. In Old St Mellons, fewer than 20 matched sales exist so far, so we do not publish this figure yet. The number of matched sales grows every month.
Median price by property type in Old St Mellons
Sales between July 2025 and June 2026. A figure needs at least 11 sales.
| Property type | Median price | Middle half of sales | Sales |
|---|---|---|---|
| Detached | £411,750 | £355,750 to £773,750 | 30 |
| Semi-detached | £288,475 | £280,000 to £295,625 | 28 |
| Terraced | £277,250 | £233,750 to £299,995 | 24 |
| Flat | Too few sales to publish a figure (8 sales) | ||
Median price each year since 1995
Years with fewer than 11 sales are left out.
Show the figures for each year
| Year | Median price | Sales |
|---|---|---|
| 2025 | £299,995 | 128 |
| 2024 | £299,995 | 142 |
| 2023 | £280,995 | 135 |
| 2022 | £279,995 | 182 |
| 2021 | £260,000 | 194 |
| 2020 | £250,000 | 194 |
| 2019 | £224,995 | 237 |
| 2018 | £254,998 | 244 |
| 2017 | £225,500 | 120 |
| 2016 | £269,998 | 46 |
| 2015 | £265,500 | 28 |
| 2014 | £260,000 | 28 |
| 2013 | £245,000 | 13 |
| 2012 | £291,000 | 13 |
| 2010 | £278,000 | 13 |
| 2009 | £190,000 | 15 |
| 2008 | £270,000 | 11 |
| 2007 | £294,000 | 23 |
| 2006 | £245,000 | 35 |
| 2005 | £173,600 | 42 |
| 2004 | £228,375 | 14 |
| 2003 | £211,250 | 16 |
| 2002 | £202,000 | 22 |
| 2001 | £181,750 | 14 |
| 1999 | £166,500 | 18 |
| 1998 | £132,000 | 14 |
| 1997 | £80,000 | 19 |
| 1996 | £100,500 | 20 |
| 1995 | £88,750 | 14 |
Price map around Old St Mellons
Each small area is raised and coloured by its median price over the last 24 months. Hatched areas have too few sales for their own figure.
Latest sold prices in Old St Mellons
The 20 most recent sales, registered up to August 2026.
| Address | Date | Price | Type |
|---|---|---|---|
| 240 Church Road, Old St Mellons Cardiff CF3 6YL | 21 Aug 2026 | £260,000 | Terraced |
| 184 Mortimer Avenue, Old St Mellons Cardiff CF3 6YF | 17 Aug 2026 | £300,000 | Semi-detached |
| 171 Church Road, Old St Mellons Cardiff CF3 6AJ | 31 Jul 2026 | £235,000 | Terraced |
| 98 Mortimer Avenue, Old St Mellons Cardiff CF3 6YF | 24 Jul 2026 | £275,000 | Semi-detached |
| 16 Ty To Maen Close, Old St Mellons Cardiff CF3 5EY | 24 Jul 2026 | £265,000 | Terraced |
| 37 Rhodfa Leonard, Old St Mellons Cardiff CF3 6YW | 24 Jul 2026 | £365,000 | Detached |
| 4 Began Road, Old St Mellons Cardiff CF3 6XJ | 24 Jul 2026 | £411,000 | Semi-detached |
| 33 Hastings Crescent, Old St Mellons Cardiff CF3 5DF | 17 Jul 2026 | £480,000 | Detached |
| 104 Mortimer Avenue, Old St Mellons Cardiff CF3 6YF | 17 Jul 2026 | £246,000 | Terraced |
| 2 Rhodfa Hughes, Old St Mellons Cardiff CF3 6YY | 6 Jul 2026 | £265,000 | Terraced |
| 105 Church Road, Old St Mellons Cardiff CF3 6AJ | 29 Jun 2026 | £283,000 | Semi-detached |
| 49 Heol Bennett, Old St Mellons Cardiff CF3 6AF | 26 Jun 2026 | £575,000 | Detached |
| 2 Clos Thomas, Old St Mellons Cardiff CF3 6YR | 26 Jun 2026 | £297,500 | Semi-detached |
| 10 Rhodfa Hughes, Old St Mellons Cardiff CF3 6YY | 26 Jun 2026 | £267,000 | Terraced |
| Becketts House Bridge Road, Old St Mellons Cardiff CF3 6UY | 25 Jun 2026 | £1,025,000 | Detached |
| 96 Heol Bennett, Old St Mellons Cardiff CF3 6AG | 19 Jun 2026 | £289,950 | Semi-detached |
| Aashraya Church Road, Old St Mellons Cardiff CF3 6YA | 5 Jun 2026 | £323,000 | Detached |
| 20 Ruperra Close, Old St Mellons Cardiff CF3 6HX | 28 May 2026 | £875,000 | Detached |
| 90 Church Road, Old St Mellons Cardiff CF3 6YN | 6 May 2026 | £283,000 | Semi-detached |
| 13 Rees Drive, Old St Mellons Cardiff CF3 6AS | 24 Apr 2026 | £285,000 | Semi-detached |
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
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Questions about house prices in Old St Mellons
How much does a house cost in Old St Mellons?
The median price of a home sold in Old St Mellons between July 2025 and June 2026 was £298,000, from 90 sales. Half of these homes sold for between £256,250 and £365,500.
How much does a detached house cost in Old St Mellons?
The median price of a detached house in Old St Mellons was £411,750 over the last 12 complete months, from 30 sales.
Which type of home costs the most in Old St Mellons?
Detached houses sold for the most, with a median of £411,750. Terraced houses sold for the least, with a median of £277,250.
Are house prices going up in Old St Mellons?
Yes. In Cardiff, prices rose by 2.7% in the year to July 2026, according to the UK House Price Index.
How many homes sell in Old St Mellons each year?
90 homes sold in Old St Mellons in the last 12 complete months, and 229 over the last 24 months.
Where do these prices come from?
Every sale comes from the Price Paid Data of HM Land Registry, which records the price of every home sold in England and Wales since 1995. We keep standard sales at market value of houses and flats (category A) and leave out repossessions, transfers to companies and other special sales. Price changes over a year come from the UK House Price Index, published by HM Land Registry with the Office for National Statistics.
More prices near Old St Mellons
Part of
Places near Old St Mellons
- Pontprennau203 sales
- Pentwyn22 sales
- Llanrumney226 sales
- St Mellons299 sales
- Rumney286 sales
- Lisvane212 sales
- Castleton15 sales
- Llanedeyrn128 sales
- Marshfield56 sales
- Splott15 sales
Postcode districts nearby
- Postcode district CF31,155 sales
- Postcode district CF231,113 sales
- Postcode district CF142,103 sales
Local authorities covering Old St Mellons
- Cardiff8,762 sales
Other places in Wales
- Llanymynech119 sales
- Knighton98 sales
Region
Sales registered up to August 2026. Read how we calculate the figures.