What type of properties are sold in Old St. Mellons? Semi-detached houses

Semi-detached houses are the most common type of property sold in Old St. Mellons, at 36.5% of sales over the past two years. Detached houses are next, at 34.0%.

Share of sales
36.5%
Average price
£281,202
Data up to
September 2026

Sold prices from HM Land Registry, not asking prices. How we calculate this

All house prices in Old St. Mellons

Which type of property sells most in Old St. Mellons?

Houses make up 92.8% of sales in Old St. Mellons, and flats 7.1%. Shares cover the past two years.

Share of sales by property type in Old St. Mellons
Property typeShare of sales
Semi-detached housesMost common36.5%
Detached houses34.0%
Terraced houses22.3%
Flats7.1%

How much does each type of property cost in Old St. Mellons?

Average sold price by property type, and each type's share of recent sales.

Detached house illustration

Detached

£486,616

41% above the Old St. Mellons average

34.0% of sales

Semi-detached house illustration

Semi-detached

£281,202

18% below the Old St. Mellons average

36.5% of sales

Terraced house illustration

Terraced

£253,079

27% below the Old St. Mellons average

22.3% of sales

Flats house illustration

Flats

£174,250

49% below the Old St. Mellons average

7.1% of sales

What else do people ask about Old St. Mellons?

More quick answers on house prices, sales, areas, green space, crime, air quality and listed buildings in Old St. Mellons.

Where does this data come from?

Price information is from HM Land Registry, location boundaries are from OpenStreetMap, and households and population are from Nomis Census 2021 postcode estimates (21 March 2021). Parks and green space are from OS Open Greenspace. Contains OS data © Crown copyright and database right 2026. Crime is from police.uk street-level data. Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk. Listed buildings and scheduled monuments are from Historic England and Cadw, and conservation areas from planning.data.gov.uk. Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), licensed under the Open Government Licence. Air quality is from Defra modelled background pollution maps. Contains public sector information licensed under the Open Government Licence v3.0. Source: Defra modelled background pollution, 2025.

Last updated 11 November 2026 at 01:33 with the latest Land Registry data (September 2026). The Old St. Mellons dataset covers 134 postcodes.

Read our full data methodology

Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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