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.
27 MOUNTAIN ROAD is a very large extended semi-detached house of 199m², built sometime between 1900 and 1929, which could now be worth an estimated £862,989. It was last sold for £202,500 in November 2001, which was around 324% above the average November 2001 semi-detached price in the Caerphilly local authority area. The most recent EPC inspection was March 2019, where the current energy rating was E, and the potential energy rating was C.
Land registry data shows one sale for 27 MOUNTAIN ROAD since 1st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Caerphilly 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 |
|---|---|---|---|
2001 16 NOV | £202,500 | £47,720 | 324% above HPI |
27 MOUNTAIN ROAD might now be worth an estimated £862,989.
This is based on house price inflation of 326.2%, between November 2001 and May 2026, for semi-detached houses, in the Caerphilly local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 326.2% inflationary increase is applied to the most recent sale price for 27 MOUNTAIN ROAD of £202,500 on 16th November 2001. For the value to have increased from £202,500 to £862,989 over the 25 years and six months to May 2026, the following assumptions must hold true:
27 MOUNTAIN ROAD is 199m², which includes one extension, according to the EPC inspection conducted in March 2019. This puts it in the largest 10% of semi-detached houses in Caerphilly, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Caerphilly, and where 27 MOUNTAIN ROAD lies on this distribution: More than 99% of semi-detached houses are smaller than 27 MOUNTAIN ROAD, and less than 1% of semi-detached houses are larger. Note that EPC data is not available for all properties in Caerphilly.

27 MOUNTAIN ROAD sits on a plot of roughly 0.198 of an acre, or 803m².
27 MOUNTAIN ROAD is located in CAERPHILLY, in the CF83 postcode district.
Most recent sales first: