Feb 07, 2023 by HM

House prices in Harpenden (AL5 2)

This article reveals price per square metre data and various charts to help you understand current housing market in Harpenden (AL5 2).

Defining 'AL5 2'

This analysis is limited to properties whose postcode starts with "AL5 2", this is also called the postcode sector. It is shown in red on the map above. You can click on the map labels to change to a neighbouring sector.

Price per square metre

Knowing the average house price in Harpenden is not much use. However, knowing average price per square metre can be quite useful. Price per sqm allows some comparison between properties of different size. We define price per square metre as the sold price divided by the internal area of a property:

£ per sqm = price ÷ internal area
E.g. 20, Sir Josephs Walk, Harpenden, sold for £840,000 on Feb-2024. Given the internal area of 111 square metres, the price per sqm is £7,567.

England & Wales have been officially metric for many decades. However house price per square foot is sometimes prefered by those of sufficiently advanced age. ;-) They may want to convert metres on this page to square feet.

The chart below is called a histogram, it helps you see the distribution of this house price per sqm data. To make this chart we put the sales data into a series of £ per sqm 'buckets' (e.g. £8,500-£9,000, £9,000-£9,500, £9,500-£10,000 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 133 sales in Harpenden (AL5 2) that took place in the last two years.

Distribution of £ per sqm for Harpenden (AL5 2)
Distribution of £ per sqm house prices in Harpenden

You can see the spread of prices above. This is because although internal area is a key factor in determining valuation, it is not the only factor. Many factors other than size affect desirability; these factors could be condition, aspect, garden size, negotiating power of the vendor etc.

The spread of prices will give you a feel of the typical range to expect in Harpenden (AL5 2). Of the 133 transactions, half were sold for between £7,090 and £9,520 per square metre. The median, or 'middle', price per square metre in 'AL5 2' is £8,270. Notably, only 25% of properties that sold recently were valued at more than £9,520m2. For anything to be valued more than this means it has to be more desireable than the clear majority of homes.

Price map for Harpenden

Do have a look at the interactive price map I created. I find it useful and I am sure it will help you in exploring Harpenden. You can zoom in all the way to individual properties and then all the way back out to see the whole country. The colours show the current estimated property values.

Property price heatmap for Harpenden
House price heatmap for Harpenden

Comparison with neighbouring postcode sectors

The table below shows how 'AL5 2' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
AL5 5 Harpenden £5,850m2 £6,740m2 £7,730m2
AL5 2 Harpenden £7,090m2 £8,270m2 £9,520m2
AL5 1 Harpenden £6,050m2 £6,800m2 £7,710m2
AL5 3 Harpenden £5,670m2 £6,600m2 £8,050m2
AL5 4 Harpenden £5,710m2 £6,700m2 £7,870m2

Will Harpenden house prices drop in 2024?

I cannot tell the future and don't believe anyone who says they can. I can however plot price trends - I have done this in the scatter plot below for AL5 2 (Harpenden). From this one could infer a range of reasonable possible future price falls or rises. In the chart below, the red dashed line is the house price trend for AL5 2 and the blue dots are the individual property sales that inform this trend.

Price per square metre in Harpenden (AL5 2) over time
House price trends for Harpenden

Hover on any blue dot to see details of specific sales

Disclaimer: The data provided throughout this website about Harpenden and any other area, is not financial advice. Any information provided does not and cannot ever take in to account the particular financial situation, objectives or property needs of either you or anyone reading this information. Furthermore, I cannot guarantee the accuracy of any data shown. This information is based on sold prices and internal area data provided by Land Registry and other third parties - I do not verify the accuracy of the Harpenden data or any other data I am given.

Street level data

Street Avg size Avg £/m2 Recent sales
Luton Road, Harpenden, AL5 2U 101m2 £6,565 14
Douglas Road, Harpenden, AL5 2E 166m2 £7,628 10
Townsend Lane, Harpenden, AL5 2Q 194m2 £8,404 10
Kirkwick Avenue, Harpenden, AL5 2Q 215m2 £7,031 8
Barns Dene, Harpenden, AL5 2H 187m2 £8,437 8
Park Avenue North, Harpenden, AL5 2E 419m2 £9,489 8
Sir Josephs Walk, Harpenden, AL5 2D 104m2 £7,082 8
West Common, Harpenden, AL5 2J 138m2 £9,173 8

Search for your street here.

New build activity

Street Avg size Avg £/m2 New build sales
Leyton Road, Harpenden, AL5 2F 96m2 £8,696 9

Leyton Road, Harpenden, AL5 2F has seen 9 new build sales in the last 4 years (average price £904,075). These new build homes typically have an internal area of 96 m2, with an average price of £8,696 m2. This £sqm average is £426 above the average for AL5 2. New builds typically command a £ per sqm premium so this is normal.

Raw data

Our analysis of Harpenden is derived from what is essentially a big table of sold prices from Land Registry with added property size information. Below are three rows from this table to give you an idea.

Address Paid m2 £/m2
20, Sir Josephs Walk, Harpenden £840,000
111 7,567
11b, Douglas Rd, Harpenden £1,500,000
141 10,638
22, West Common Way, Harpenden £2,700,000
233 11,587

See the entire list of all sales in Harpenden (AL5 2) here.


HouseMetric is a hobby, created out of a desire to see data and analysis not present on any free to use website. It is still a work in progress and I'll add more stuff in the near future.