66, HARPENDEN LANE, REDBOURN, ST. ALBANS, AL3 7PB - £262,500

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.

66 HARPENDEN LANE is a very small extended detached house of 63m², built sometime between 1930 and 1949, which could now be worth an estimated £639,990. It was last sold for £262,500 in January 2004, which was around 47% below the average January 2004 detached price in the St Albans local authority area. The most recent EPC inspection was November 2025, where the current energy rating was E, and the potential energy rating was C.

66 HARPENDEN LANE Sold Prices

Land registry data shows three sales for 66 HARPENDEN LANE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the St Albans local authority area for the corresponding sale date. All of the three 66 HARPENDEN LANE 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
2004 30 JAN	£262,500	£492,909	47% below HPI
2000 23 MAY	£82,000	£357,333	77% below HPI
1999 16 DEC	£97,000	£323,282	70% below HPI

66 HARPENDEN LANE Price Paid vs. HPI Average

The below graph shows the average detached house price in the St Albans local authority area over time, sourced from the HPI. The three 66 HARPENDEN LANE sales between December 1999 and January 2004 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 2000 sale was for 77% below the HPI. So the extrapolation line tracks at 77% below the HPI over time, until the January 2004 sale, where it rises to 47% below the HPI. The line then continues to track at 47% below the HPI.

What might 66 HARPENDEN LANE be worth now?

66 HARPENDEN LANE might now be worth an estimated £639,990.

This is based on house price inflation of 143.8%, between January 2004 and October 2025, for 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 143.8% inflationary increase is applied to the most recent sale price for 66 HARPENDEN LANE of £262,500 on 30th January 2004. For the value to have increased from £262,500 to £639,990 over the twenty years and three months to October 2025, the following assumptions must hold true:

• The value of 66 HARPENDEN LANE has moved in line with the HPI for detached houses in the St Albans local authority area.
• The January 2004 sale price of £262,500 represented a fair market value for the property.
• The size, condition, and specification of 66 HARPENDEN LANE has not materially changed since January 2004.

How Large is 66 HARPENDEN LANE?

66 HARPENDEN LANE is 63m², which includes one extension, according to the EPC inspection conducted in November 2025. This puts it in the smallest 10% of detached houses houses in Redbourn, based on EPC data. The below chart shows the distribution of detached houses houses by size in Redbourn, and where 66 HARPENDEN LANE lies on this distribution: 3% of detached houses houses are smaller than 66 HARPENDEN LANE, and 97% of houses are larger. Note that EPC data is not available for all properties in Redbourn.

Where is 66 HARPENDEN LANE?

66 HARPENDEN LANE is located in REDBOURN, in the AL3 postcode district. The below map shows the position of No. 66 on HARPENDEN LANE.