12, MOUNT STREET, LEWES, BN7 1HL - £187,500

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.

12 MOUNT STREET is a very small extended terraced house of 48m², built sometime between 1900 and 1929, which could now be worth an estimated £320,922. It was last sold for £187,500 in December 2006, which was around 1% below the average December 2006 terraced price in the Lewes local authority area. The most recent EPC inspection was June 2024, where the current energy rating was C, and the potential energy rating was A.

12 MOUNT STREET Sold Prices

Land registry data shows two sales for 12 MOUNT STREET since 1^st January 1995. The below table shows the price paid for the two sales, along with the average terraced price in the Lewes local authority area for the corresponding sale date. One of the two 12 MOUNT STREET sales was for below the average price, whilst the other was 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
2006 12 DEC	£187,500	£189,270	1% below HPI
1996 4 APR	£59,950	£51,738	16% above HPI

12 MOUNT STREET Price Paid vs. HPI Average

The below graph shows the average terraced house price in the Lewes local authority area over time, sourced from the HPI. The two 12 MOUNT STREET sales from April 1996 and December 2006 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 April 1996 sale was for 16% above the HPI. So the extrapolation line tracks at 16% above the HPI over time, until the December 2006 sale, where it falls to 1% below the HPI. The line then continues to track at 1% below the HPI.

What might 12 MOUNT STREET be worth now?

12 MOUNT STREET might now be worth an estimated £320,922.

This is based on house price inflation of 71.2%, between December 2006 and August 2025, for terraced houses, in the Lewes local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 71.2% inflationary increase is applied to the most recent sale price for 12 MOUNT STREET of £187,500 on 12th December 2006. For the value to have increased from £187,500 to £320,922 over the nineteen years and four months to August 2025, the following assumptions must hold true:

• The value of 12 MOUNT STREET has moved in line with the HPI for terraced houses in the Lewes local authority area.
• The December 2006 sale price of £187,500 represented a fair market value for the property.
• The size, condition, and specification of 12 MOUNT STREET has not materially changed since December 2006.

How Large is 12 MOUNT STREET?

12 MOUNT STREET is 48m², which includes one extension, according to the EPC inspection conducted in June 2024. This puts it in the smallest 10% of terraced houses houses in Lewes, based on EPC data. The below chart shows the distribution of terraced houses houses by size in Lewes, and where 12 MOUNT STREET lies on this distribution: Less than 1% of terraced houses houses are smaller than 12 MOUNT STREET, and more than 99% of houses are larger. Note that EPC data is not available for all properties in Lewes.

12 MOUNT STREET: Plot and Title Map

12 MOUNT STREET sits on a plot of roughly 0.010 of an acre, or 40m². The below map shows the location of 12 MOUNT STREET, 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 12 MOUNT STREET). 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 12 MOUNT STREET?

12 MOUNT STREET is located in LEWES, in the BN7 postcode district. The below map shows the position of No. 12 on MOUNT STREET.