KEYSTONE HOUSE, GRATELEY, ANDOVER, SP11 8HZ - £560,000

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.

KEYSTONE HOUSE is a large detached house of 186m², built sometime between 1991 and 1995, which could now be worth an estimated £939,929. It was last sold for £560,000 in August 2007, which was around 52% above the average August 2007 detached price in the Test Valley local authority area. The most recent EPC inspection was May 2022, where the current energy rating was D, and the potential energy rating was C.

KEYSTONE HOUSE Sold Prices

Land registry data shows three sales for KEYSTONE HOUSE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Test Valley local authority area for the corresponding sale date. All of the three KEYSTONE 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
2007 23 AUG	£560,000	£367,442	52% above HPI
2000 7 DEC	£320,000	£210,521	52% above HPI
1999 28 MAY	£275,000	£158,900	73% above HPI

KEYSTONE HOUSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Test Valley local authority area over time, sourced from the HPI. The three KEYSTONE HOUSE sales between May 1999 and August 2007 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 December 2000 sale was for 52% above the HPI. So the extrapolation line tracks at 52% above the HPI over time, until the August 2007 sale, which was also at 52% above the HPI.

What might KEYSTONE HOUSE be worth now?

KEYSTONE HOUSE might now be worth an estimated £939,929.

This is based on house price inflation of 67.8%, between August 2007 and February 2025, for detached houses, in the Test Valley local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 67.8% inflationary increase is applied to the most recent sale price for KEYSTONE HOUSE of £560,000 on 23rd August 2007. For the value to have increased from £560,000 to £939,929 over the eighteen years and six months to February 2025, the following assumptions must hold true:

• The value of KEYSTONE HOUSE has moved in line with the HPI for detached houses in the Test Valley local authority area.
• The August 2007 sale price of £560,000 represented a fair market value for the property.
• The size, condition, and specification of KEYSTONE HOUSE has not materially changed since August 2007.

How Large is KEYSTONE HOUSE?

KEYSTONE HOUSE is 186m² according to the EPC inspection conducted in May 2022. This puts it in the largest 40% of detached houses houses in Grateley, based on EPC data. The below chart shows the distribution of detached houses houses by size in Grateley, and where KEYSTONE HOUSE lies on this distribution: 68% of detached houses houses are smaller than KEYSTONE HOUSE, and 32% of houses are larger. Note that EPC data is not available for all properties in Grateley.

KEYSTONE HOUSE: Plot and Title Map

KEYSTONE HOUSE sits on a plot of roughly 0.206 of an acre, or 834m². The below map shows the location of KEYSTONE 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 KEYSTONE 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 KEYSTONE HOUSE?

KEYSTONE HOUSE is located in GRATELEY, in the SP11 postcode district. The below map shows the position of KEYSTONE HOUSE in GRATELEY.