12, HARRIETS HEIGHTS, BLACKBURN, BB2 5FR - £300,000

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.

12 HARRIETS HEIGHTS is a midsized extended detached house of 118m², built sometime from 2012 onwards, which could now be worth an estimated £328,407. It was last sold for £300,000 in January 2026, which was around 11% above the average January 2026 detached price in the Blackburn with Darwen local authority area. The most recent EPC inspection was May 2023, where the current energy rating was C, and the potential energy rating was B.

12 HARRIETS HEIGHTS Sold Prices

Land registry data shows two sales for 12 HARRIETS HEIGHTS since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Blackburn with Darwen local authority area for the corresponding sale date. Both of the two 12 HARRIETS HEIGHTS 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
2026 23 JAN	£300,000	£270,056	11% above HPI
2019 15 NOV	£239,950	£207,826	15% above HPI

12 HARRIETS HEIGHTS Price Paid vs. HPI Average

The below graph shows the average detached house price in the Blackburn with Darwen local authority area over time, sourced from the HPI. The two 12 HARRIETS HEIGHTS sales from November 2019 and January 2026 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 November 2019 sale was for 15% above the HPI. So the extrapolation line tracks at 15% above the HPI over time, until the January 2026 sale, where it falls to 11% above the HPI. The line then continues to track at 11% above the HPI.

What might 12 HARRIETS HEIGHTS be worth now?

12 HARRIETS HEIGHTS might now be worth an estimated £328,407.

This is based on house price inflation of 9.5%, between January 2026 and May 2026, for detached houses, in the Blackburn with Darwen local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 9.5% inflationary increase is applied to the most recent sale price for 12 HARRIETS HEIGHTS of £300,000 on 23rd January 2026. For the value to have increased from £300,000 to £328,407 over the eight months to May 2026, the following assumptions must hold true:

• The value of 12 HARRIETS HEIGHTS has moved in line with the HPI for detached houses in the Blackburn with Darwen local authority area.
• The January 2026 sale price of £300,000 represented a fair market value for the property.
• The size, condition, and specification of 12 HARRIETS HEIGHTS has not materially changed since January 2026.

How Large is 12 HARRIETS HEIGHTS?

12 HARRIETS HEIGHTS is 118m², which includes one extension, according to the EPC inspection conducted in May 2023. This puts it in the largest 50% of detached houses houses in Blackburn, based on EPC data. The below chart shows the distribution of detached houses houses by size in Blackburn, and where 12 HARRIETS HEIGHTS lies on this distribution: 57% of detached houses houses are smaller than 12 HARRIETS HEIGHTS, and 42% of houses are larger. Note that EPC data is not available for all properties in Blackburn.

12 HARRIETS HEIGHTS: Plot and Title Map

12 HARRIETS HEIGHTS sits on a plot of roughly 0.063 of an acre, or 253m². The below map shows the location of 12 HARRIETS HEIGHTS, 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 HARRIETS HEIGHTS). 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 HARRIETS HEIGHTS?

12 HARRIETS HEIGHTS is located in BLACKBURN, in the BB2 postcode district. The below map shows the position of No. 12 on HARRIETS HEIGHTS.