171, CRABTREE LANE, HARPENDEN, AL5 5QX - £492,500

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

171 CRABTREE LANE is a very small extended semi-detached house of 89m², built sometime between 1950 and 1966, which could now be worth an estimated £917,878. It was last sold for £492,500 in December 2011, which was around 20% above the average December 2011 semi-detached price in the St Albans local authority area. The most recent EPC inspection was August 2011, where the current energy rating was E, and the potential energy rating was D.

171 CRABTREE LANE Sold Prices

Land registry data shows four sales for 171 CRABTREE LANE since 1^st January 1995. The below table shows the price paid for the four sales, along with the average semi-detached price in the St Albans local authority area for the corresponding sale date. Most of the four 171 CRABTREE LANE 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
2011 13 DEC	£492,500	£410,687	20% above HPI
2005 13 OCT	£340,000	£326,955	4% above HPI
2001 15 NOV	£240,000	£231,469	4% above HPI
2000 8 MAY	£174,950	£203,810	14% below HPI

171 CRABTREE LANE 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 four 171 CRABTREE LANE sales between May 2000 and December 2011 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 October 2005 sale was for 4% above the HPI. So the extrapolation line tracks at 4% above the HPI over time, until the December 2011 sale, where it rises to 20% above the HPI. The line then continues to track at 20% above the HPI.

What might 171 CRABTREE LANE be worth now?

171 CRABTREE LANE might now be worth an estimated £917,878.

This is based on house price inflation of 86.4%, between December 2011 and December 2024, 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 86.4% inflationary increase is applied to the most recent sale price for 171 CRABTREE LANE of £492,500 on 13th December 2011. For the value to have increased from £492,500 to £917,878 over the thirteen years to December 2024, the following assumptions must hold true:

• The value of 171 CRABTREE LANE has moved in line with the HPI for semi-detached houses in the St Albans local authority area.
• The December 2011 sale price of £492,500 represented a fair market value for the property.
• The size, condition, and specification of 171 CRABTREE LANE has not materially changed since December 2011.

How Large is 171 CRABTREE LANE?

171 CRABTREE LANE is 89m², which includes one extension, according to the EPC inspection conducted in August 2011. This puts it in the smallest 10% of semi-detached houses houses in Harpenden, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Harpenden, and where 171 CRABTREE LANE lies on this distribution: 4% of semi-detached houses houses are smaller than 171 CRABTREE LANE, and 96% of houses are larger. Note that EPC data is not available for all properties in Harpenden.

171 CRABTREE LANE: Plot and Title Map

171 CRABTREE LANE sits on a plot of roughly 0.085 of an acre, or 342m². The below map shows the location of 171 CRABTREE LANE, 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 171 CRABTREE LANE). 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 171 CRABTREE LANE?

171 CRABTREE LANE is located in HARPENDEN, in the AL5 postcode district. The below map shows the position of No. 171 on CRABTREE LANE.