The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.
21 PATCHWAY CRESCENT is a very large extended semi-detached house of 152m², built sometime between 1976 and 1982, which could now be worth an estimated £388,833. It was last sold for £380,000 in October 2025, which was around 20% above the average October 2025 semi-detached price in the Cardiff local authority area. The most recent EPC inspection was February 2025, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows one sale for 21 PATCHWAY CRESCENT since 1st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Cardiff local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).
| Date | Price | HPI Price | Variation from HPI |
|---|---|---|---|
2025 23 OCT | £380,000 | £317,479 | 20% above HPI |
21 PATCHWAY CRESCENT might now be worth an estimated £388,833.
This is based on house price inflation of 2.3%, between October 2025 and July 2026, for semi-detached houses, in the Cardiff local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 2.3% inflationary increase is applied to the most recent sale price for 21 PATCHWAY CRESCENT of £380,000 on 23rd October 2025. For the value to have increased from £380,000 to £388,833 over the one year and three months to July 2026, the following assumptions must hold true:
21 PATCHWAY CRESCENT is 152m², which includes one extension, according to the EPC inspection conducted in February 2025. This puts it in the largest 10% of semi-detached houses in Cardiff, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Cardiff, and where 21 PATCHWAY CRESCENT lies on this distribution: 93% of semi-detached houses are smaller than 21 PATCHWAY CRESCENT, and 7% of semi-detached houses are larger. Note that EPC data is not available for all properties in Cardiff.

21 PATCHWAY CRESCENT is located in RUMNEY, in the CF3 postcode district.
Most recent sales first: