What is the most expensive house sold in South Glamorgan? £20,000,000

1 Dalmuir Road, Cardiff is the most expensive house sold in South Glamorgan, at £20,000,000 in December 2025. The 100 highest recorded sales start at £1,425,000.

Sold
December 2025
10th highest sale
£2,200,000
100th highest sale
£1,425,000

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

All house prices in South Glamorgan

How much do the most expensive houses in South Glamorgan sell for?

The 100 most expensive houses sold in South Glamorgan went for between £1,425,000 and £20,000,000.

South Glamorgan, part of Cymru Wales, has seen some remarkable property sales. The most expensive house on the list sold for £20,000,000 in 2025, while the least expensive cost £1,425,000. The latest house sale on the list took place in 2026. In total, there have been 257,915 sales in the area since 1995, showing just how active the South Glamorgan property market has been over the years.

What are the 100 most expensive houses sold in South Glamorgan?

1 Dalmuir Road, Cardiff tops the list at £20,000,000, followed by Erw Wen Rudry Road, Cardiff at £3,150,000. Select a house to see where it is and what it sold for before.

  • Top 10
  • 11 to 50
  • 51 to 100
  1. Sale history
    YearSold forChange on previous sale
    2014 £3,150,000First recorded sale
    View on Google Street View (opens in a new tab)

How does South Glamorgan compare with the rest of Cymru / Wales?

South Glamorgan has the highest recorded sale of the 17 areas in Cymru / Wales.

  1. 1

    South Glamorgan (this area)

    £20,000,000

  2. 2

    £7,787,881

  3. 3

    £3,627,787

  4. 4

    £3,500,000

  5. 5

    £2,882,745

Most expensive houses in Cymru / Wales

Which areas of South Glamorgan have the most expensive houses?

Cardiff has the highest recorded sale in South Glamorgan at £20,000,000.

  1. 1

    £20,000,000

  2. 2

    £3,000,000

What else do people ask about South Glamorgan?

More quick answers on house prices, sales, areas, green space and crime in South Glamorgan.

Thinking of buying in South Glamorgan?

There's a lot to think about. Whether it's a home to live in or a buy-to-let, our free checklist walks you through what to check before you make an offer.

What to check before you buy

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.

Last updated 6 November 2026 at 00:09 with the latest Land Registry data (September 2026). The South Glamorgan dataset covers 24,634 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.

About·Data methodology·Buying checklist·Privacy and cookies·YouTube