UPPER HOUSE, GROSMONT, ABERGAVENNY, NP7 8EP - £650,000

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.

UPPER HOUSE is a very large detached house of 224m², built sometime between 1996 and 2002, which could now be worth an estimated £630,145. It was last sold for £650,000 in October 2025, which was around 30% above the average October 2025 detached price in the Monmouthshire local authority area. The most recent EPC inspection was April 2025, where the current energy rating was D, and the potential energy rating was B.

UPPER HOUSE Sold Prices

Land registry data shows four sales for UPPER HOUSE since 1^st January 1995. The below table shows the price paid for the four sales, along with the average detached price in the Monmouthshire local authority area for the corresponding sale date. Most of the four UPPER HOUSE sales were for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

Date	Price	HPI Price	Variation from HPI
2025 16 OCT	£650,000	£499,795	30% above HPI
2009 4 SEP	£420,000	£268,674	56% above HPI
2003 31 JAN	£249,999	£185,387	35% above HPI
2001 29 JUN	£60,000	£146,129	59% below HPI

UPPER HOUSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Monmouthshire local authority area over time, sourced from the HPI. The four UPPER HOUSE sales between June 2001 and October 2025 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the September 2009 sale was for 56% above the HPI. So the extrapolation line tracks at 56% above the HPI over time, until the October 2025 sale, where it falls to 30% above the HPI. The line then continues to track at 30% above the HPI.

What might UPPER HOUSE be worth now?

UPPER HOUSE might now be worth an estimated £630,145.

This is based on house price deflation of 3.1%, between October 2025 and May 2026, for detached houses, in the Monmouthshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 3.1% deflationary decrease is applied to the most recent sale price for UPPER HOUSE of £650,000 on 16th October 2025. For the value to have decreased from £650,000 to £630,145 over the one year and five months to May 2026, the following assumptions must hold true:

• The value of UPPER HOUSE has moved in line with the HPI for detached houses in the Monmouthshire local authority area.
• The October 2025 sale price of £650,000 represented a fair market value for the property.
• The size, condition, and specification of UPPER HOUSE has not materially changed since October 2025.

How Large is UPPER HOUSE?

UPPER HOUSE is 224m² according to the EPC inspection conducted in April 2025. This puts it in the largest 20% of detached houses houses in Grosmont, based on EPC data. The below chart shows the distribution of detached houses houses by size in Grosmont, and where UPPER HOUSE lies on this distribution: 86% of detached houses houses are smaller than UPPER HOUSE, and 14% of houses are larger. Note that EPC data is not available for all properties in Grosmont.

UPPER HOUSE: Plot and Title Map

UPPER HOUSE sits on a plot of roughly 0.247 of an acre, or 998m². The below map shows the location of UPPER HOUSE, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of UPPER HOUSE). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

Where is UPPER HOUSE?

UPPER HOUSE is located in GROSMONT, in the NP7 postcode district. The below map shows the position of UPPER HOUSE in GROSMONT.