Property Data Search:

14, THE WARREN, HARPENDEN, AL5 2NH - £1,250,000

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.

14 THE WARREN is a very large extended detached house of 268m², built sometime between 1950 and 1966, which could now be worth an estimated £1,859,437. It was last sold for £1,250,000 in June 2014, which was around 56% above the average June 2014 detached price in the St Albans local authority area. The most recent EPC inspection was April 2010, where the current energy rating was E, and the potential energy rating was E.

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14 THE WARREN Sold Prices

Land registry data shows three sales for 14 THE WARREN since 1st 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 14 THE WARREN sales were for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2014
4 JUN
£1,250,000£801,506
up arrow
56% above HPI
2003
10 JAN
£765,000£498,679
up arrow
53% above HPI
1999
12 APR
£445,000£280,233
up arrow
59% above HPI

14 THE WARREN 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 14 THE WARREN sales between April 1999 and June 2014 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 January 2003 sale was for 53% above the HPI. So the extrapolation line tracks at 53% above the HPI over time, until the June 2014 sale, where it rises to 56% above the HPI. The line then continues to track at 56% above the HPI.

14, THE WARREN, HARPENDEN, AL5 2NH: Price paid vs HM Land Registry's House Price Index

What might 14 THE WARREN be worth now?

14 THE WARREN might now be worth an estimated £1,859,437.

This is based on house price inflation of 48.8%, between June 2014 and June 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 48.8% inflationary increase is applied to the most recent sale price for 14 THE WARREN of £1,250,000 on 4th June 2014. For the value to have increased from £1,250,000 to £1,859,437 over the eleven years to June 2025, the following assumptions must hold true:

  • The value of 14 THE WARREN has moved in line with the HPI for detached houses in the St Albans local authority area.
  • The June 2014 sale price of £1,250,000 represented a fair market value for the property.
  • The size, condition, and specification of 14 THE WARREN has not materially changed since June 2014.
Disclaimer: Please note that this is a theoretical estimate based on assumptions which may or may not be correct. It should not be relied on for any purpose.

How Large is 14 THE WARREN?

14 THE WARREN is 268m², which includes two extensions, according to the EPC inspection conducted in April 2010. This puts it in the largest 20% of detached houses houses in Harpenden, based on EPC data. The below chart shows the distribution of detached houses houses by size in Harpenden, and where 14 THE WARREN lies on this distribution: 84% of detached houses houses are smaller than 14 THE WARREN, and 16% of houses are larger. Note that EPC data is not available for all properties in Harpenden.

14, THE WARREN, HARPENDEN, AL5 2NH: Size of property relative to detached houses houses in Harpenden

14 THE WARREN: Plot and Title Map

14 THE WARREN sits on a plot of roughly 0.339 of an acre, or 1,370m². The below map shows the location of 14 THE WARREN, 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 14 THE WARREN). 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.

14, THE WARREN, HARPENDEN, AL5 2NH: Plot and title map

Where is 14 THE WARREN?

14 THE WARREN is located in HARPENDEN, in the AL5 postcode district. The below map shows the position of No. 14 on THE WARREN.

14, THE WARREN, HARPENDEN, AL5 2NH: Location map and indicative extent of plot

All property sales on THE WARREN

Most recent sales first:

Limited data available
2023
15 SEP
£2,335,000
Full data available
2023
1 JUN
£1,675,000
Limited data available
2023
24 FEB
£1,756,000
Limited data available
2022
11 NOV
£2,385,000
Limited data available
2021
27 MAY
£2,200,000
Limited data available
2020
30 SEP
£1,735,000
Limited data available
2019
19 DEC
£1,870,000
Limited data available
2018
19 OCT
£1,412,626
Limited data available
2018
18 JUL
£1,600,000
Limited data available
2018
6 JUN
£1,500,000
Full data available
2017
6 DEC
£1,575,000
Limited data available
2015
12 AUG
£2,625,000
Full data available
2015
9 JAN
£1,225,000
Full data available
2014
4 JUN
£1,250,000
Limited data available
2006
7 DEC
£1,200,000
Full data available
2003
10 JAN
£765,000
Full data available
2002
12 APR
£700,000
Limited data available
1999
28 OCT
£470,000
Full data available
1999
12 APR
£445,000
Limited data available
1998
31 JUL
£450,000
Limited data available
1995
16 AUG
£280,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Source: HM Land Registry UK House Price Index
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Copyright statement: This information is subject to Crown copyright and database rights 2025 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2025 Ordnance Survey 100026316. Conditions of use.