BLACK BUOY COTTAGE, BLACK BUOY HILL, WIVENHOE, COLCHESTER, CO7 9BS - £125,000

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.

BLACK BUOY COTTAGE is a very small extended detached house of 52m², built sometime before 1900, which could now be worth an estimated £359,238. It was last sold for £125,000 in December 2001, which was around 29% below the average December 2001 detached price in the Colchester local authority area. The most recent EPC inspection was October 2021, where the current energy rating was E, and the potential energy rating was C.

BLACK BUOY COTTAGE Sold Prices

Land registry data shows three sales for BLACK BUOY COTTAGE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Colchester local authority area for the corresponding sale date. All of the three BLACK BUOY COTTAGE sales were for below 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
2001 14 DEC	£125,000	£176,828	29% below HPI
1999 27 JUL	£72,000	£120,794	40% below HPI
1996 13 SEP	£63,000	£92,134	32% below HPI

BLACK BUOY COTTAGE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Colchester local authority area over time, sourced from the HPI. The three BLACK BUOY COTTAGE sales between September 1996 and December 2001 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 July 1999 sale was for 40% below the HPI. So the extrapolation line tracks at 40% below the HPI over time, until the December 2001 sale, where it rises to 29% below the HPI. The line then continues to track at 29% below the HPI.

What might BLACK BUOY COTTAGE be worth now?

BLACK BUOY COTTAGE might now be worth an estimated £359,238.

This is based on house price inflation of 187.4%, between December 2001 and August 2025, for detached houses, in the Colchester local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 187.4% inflationary increase is applied to the most recent sale price for BLACK BUOY COTTAGE of £125,000 on 14th December 2001. For the value to have increased from £125,000 to £359,238 over the 24 years and four months to August 2025, the following assumptions must hold true:

• The value of BLACK BUOY COTTAGE has moved in line with the HPI for detached houses in the Colchester local authority area.
• The December 2001 sale price of £125,000 represented a fair market value for the property.
• The size, condition, and specification of BLACK BUOY COTTAGE has not materially changed since December 2001.

How Large is BLACK BUOY COTTAGE?

BLACK BUOY COTTAGE is 52m², which includes one extension, according to the EPC inspection conducted in October 2021. This puts it in the smallest 10% of detached houses houses in Wivenhoe, based on EPC data. The below chart shows the distribution of detached houses houses by size in Wivenhoe, and where BLACK BUOY COTTAGE lies on this distribution: 1% of detached houses houses are smaller than BLACK BUOY COTTAGE, and 99% of houses are larger. Note that EPC data is not available for all properties in Wivenhoe.

BLACK BUOY COTTAGE: Plot and Title Map

BLACK BUOY COTTAGE sits on a plot of roughly 0.005 of an acre, or 22m². The below map shows the location of BLACK BUOY COTTAGE, 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 BLACK BUOY COTTAGE). 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 BLACK BUOY COTTAGE?

BLACK BUOY COTTAGE is located on BLACK BUOY HILL in WIVENHOE, in the CO7 postcode district. The below map shows the position of BLACK BUOY COTTAGE on BLACK BUOY HILL.