THE OLD OBSERVATORY, SANDY LANE, DOCKING, KING'S LYNN, PE31 8NF - £875,000

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.

THE OLD OBSERVATORY is a small extended detached house of 116m², built sometime between 1967 and 1975, which could now be worth an estimated £1,155,829. It was last sold for £875,000 in April 2017, which was around 215% above the average April 2017 detached price in the King's Lynn and West Norfolk local authority area. The most recent EPC inspection was December 2014, where the current energy rating was F, and the potential energy rating was B.

THE OLD OBSERVATORY Sold Prices

Land registry data shows three sales for THE OLD OBSERVATORY since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the King's Lynn and West Norfolk local authority area for the corresponding sale date. All of the three THE OLD OBSERVATORY 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 28 APR	£875,000	£277,619	215% above HPI
2015 26 JAN	£365,000	£235,435	55% above HPI
1999 23 APR	£127,000	£77,258	64% above HPI

THE OLD OBSERVATORY Price Paid vs. HPI Average

The below graph shows the average detached house price in the King's Lynn and West Norfolk local authority area over time, sourced from the HPI. The three THE OLD OBSERVATORY sales between April 1999 and April 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 January 2015 sale was for 55% above the HPI. So the extrapolation line tracks at 55% above the HPI over time, until the April 2017 sale, where it rises to 215% above the HPI. The line then continues to track at 215% above the HPI.

What might THE OLD OBSERVATORY be worth now?

THE OLD OBSERVATORY might now be worth an estimated £1,155,829.

This is based on house price inflation of 32.1%, between April 2017 and February 2025, for detached houses, in the King's Lynn and West Norfolk local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 32.1% inflationary increase is applied to the most recent sale price for THE OLD OBSERVATORY of £875,000 on 28th April 2017. For the value to have increased from £875,000 to £1,155,829 over the eight years and two months to February 2025, the following assumptions must hold true:

• The value of THE OLD OBSERVATORY has moved in line with the HPI for detached houses in the King's Lynn and West Norfolk local authority area.
• The April 2017 sale price of £875,000 represented a fair market value for the property.
• The size, condition, and specification of THE OLD OBSERVATORY has not materially changed since April 2017.

How Large is THE OLD OBSERVATORY?

THE OLD OBSERVATORY is 116m², which includes one extension, according to the EPC inspection conducted in December 2014. This puts it in the smallest 30% of detached houses houses in Docking, based on EPC data. The below chart shows the distribution of detached houses houses by size in Docking, and where THE OLD OBSERVATORY lies on this distribution: 26% of detached houses houses are smaller than THE OLD OBSERVATORY, and 72% of houses are larger. Note that EPC data is not available for all properties in Docking.

THE OLD OBSERVATORY: Plot and Title Map

THE OLD OBSERVATORY sits on a plot of roughly 0.368 of an acre, or 1,490m². The below map shows the location of THE OLD OBSERVATORY, 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 THE OLD OBSERVATORY). 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 THE OLD OBSERVATORY?

THE OLD OBSERVATORY is located on SANDY LANE in DOCKING, in the PE31 postcode district. The below map shows the position of THE OLD OBSERVATORY on SANDY LANE.