13, BLACKTHORN CLOSE, ST ALBANS, AL4 9RP - £1,150,000

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.

13 BLACKTHORN CLOSE is a midsized extended semi-detached house of 146m², built sometime between 1950 and 1966, which could now be worth an estimated £1,129,192. It was last sold for £1,150,000 in January 2025, which was around 54% above the average January 2025 semi-detached price in the St Albans local authority area. The most recent EPC inspection was June 2024, where the current energy rating was C, and the potential energy rating was C.

13 BLACKTHORN CLOSE Sold Prices

Land registry data shows two sales for 13 BLACKTHORN CLOSE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the St Albans local authority area for the corresponding sale date. Both of the two 13 BLACKTHORN CLOSE 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
2025 10 JAN	£1,150,000	£747,389	54% above HPI
2019 24 MAY	£750,000	£614,887	22% above HPI

13 BLACKTHORN CLOSE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the St Albans local authority area over time, sourced from the HPI. The two 13 BLACKTHORN CLOSE sales from May 2019 and January 2025 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 May 2019 sale was for 22% above the HPI. So the extrapolation line tracks at 22% above the HPI over time, until the January 2025 sale, where it rises to 54% above the HPI. The line then continues to track at 54% above the HPI.

What might 13 BLACKTHORN CLOSE be worth now?

13 BLACKTHORN CLOSE might now be worth an estimated £1,129,192.

This is based on house price deflation of 1.8%, between January 2025 and June 2025, for semi-detached houses, in the St Albans local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 1.8% deflationary decrease is applied to the most recent sale price for 13 BLACKTHORN CLOSE of £1,150,000 on 10th January 2025. For the value to have decreased from £1,150,000 to £1,129,192 over the seven months to June 2025, the following assumptions must hold true:

• The value of 13 BLACKTHORN CLOSE has moved in line with the HPI for semi-detached houses in the St Albans local authority area.
• The January 2025 sale price of £1,150,000 represented a fair market value for the property.
• The size, condition, and specification of 13 BLACKTHORN CLOSE has not materially changed since January 2025.

How Large is 13 BLACKTHORN CLOSE?

13 BLACKTHORN CLOSE is 146m², which includes two extensions, according to the EPC inspection conducted in June 2024. This puts it in the largest 50% of semi-detached houses houses in St Albans, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in St Albans, and where 13 BLACKTHORN CLOSE lies on this distribution: 55% of semi-detached houses houses are smaller than 13 BLACKTHORN CLOSE, and 45% of houses are larger. Note that EPC data is not available for all properties in St Albans.

13 BLACKTHORN CLOSE: Plot and Title Map

13 BLACKTHORN CLOSE sits on a plot of roughly 0.100 of an acre, or 403m². The below map shows the location of 13 BLACKTHORN CLOSE, 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 13 BLACKTHORN CLOSE). 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 13 BLACKTHORN CLOSE?

13 BLACKTHORN CLOSE is located in ST ALBANS, in the AL4 postcode district. The below map shows the position of No. 13 on BLACKTHORN CLOSE.