GARTREF, ROMAN DRIVE, CHILWORTH, SOUTHAMPTON, SO16 7HS - £850,000

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

GARTREF is a small extended detached house of 197m², built sometime between 1950 and 1966, which could now be worth an estimated £1,046,207. It was last sold for £850,000 in December 2017, which was around 71% above the average December 2017 detached price in the Test Valley local authority area. The most recent EPC inspection was October 2017, where the current energy rating was C, and the potential energy rating was C.

GARTREF Sold Prices

Land registry data shows two sales for GARTREF since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Test Valley local authority area for the corresponding sale date. Both of the two GARTREF 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
2017 15 DEC	£850,000	£495,980	71% above HPI
1995 21 AUG	£138,500	£112,778	23% above HPI

GARTREF 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 two GARTREF sales from August 1995 and December 2017 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 August 1995 sale was for 23% above the HPI. So the extrapolation line tracks at 23% above the HPI over time, until the December 2017 sale, where it rises to 71% above the HPI. The line then continues to track at 71% above the HPI.

What might GARTREF be worth now?

GARTREF might now be worth an estimated £1,046,207.

This is based on house price inflation of 23.1%, between December 2017 and December 2024, 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 23.1% inflationary increase is applied to the most recent sale price for GARTREF of £850,000 on 15th December 2017. For the value to have increased from £850,000 to £1,046,207 over the seven years to December 2024, the following assumptions must hold true:

• The value of GARTREF has moved in line with the HPI for detached houses in the Test Valley local authority area.
• The December 2017 sale price of £850,000 represented a fair market value for the property.
• The size, condition, and specification of GARTREF has not materially changed since December 2017.

How Large is GARTREF?

GARTREF is 197m², which includes four extensions, according to the EPC inspection conducted in October 2017. This puts it in the smallest 30% of detached houses houses in Chilworth, based on EPC data. The below chart shows the distribution of detached houses houses by size in Chilworth, and where GARTREF lies on this distribution: 25% of detached houses houses are smaller than GARTREF, and 74% of houses are larger. Note that EPC data is not available for all properties in Chilworth.

GARTREF: Plot and Title Map

GARTREF sits on a plot of roughly 0.383 of an acre, or 1,551m². The below map shows the location of GARTREF, 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 GARTREF). 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 GARTREF?

GARTREF is located on ROMAN DRIVE in CHILWORTH, in the SO16 postcode district. The below map shows the position of GARTREF on ROMAN DRIVE.