Feb 07, 2023 by HM

House prices in Harpenden (AL5 1)

This article reveals price per square metre data and various charts to help you understand current housing market in Harpenden (AL5 1).

Defining 'AL5 1'

This analysis is limited to properties whose postcode starts with "AL5 1", 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. 68, Wheathampstead Road, Harpenden, sold for £1,187,500 on Jan-2024. Given the internal area of 165 square metres, the price per sqm is £7,196.

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. £7,600-£8,000, £8,000-£8,400, £8,400-£8,800 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 175 sales in Harpenden (AL5 1) that took place in the last two years.

Distribution of £ per sqm for Harpenden (AL5 1)
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 1). Of the 175 transactions, half were sold for between £6,050 and £7,710 per square metre. The median, or 'middle', price per square metre in 'AL5 1' is £6,800. Notably, only 25% of properties that sold recently were valued at more than £7,710m2. 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 1' 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 1 (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 1 and the blue dots are the individual property sales that inform this trend.

Price per square metre in Harpenden (AL5 1) 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
Piggottshill Lane, Harpenden, AL5 1L 120m2 £6,484 25
Cravells Road, Harpenden, AL5 1B 81m2 £7,370 21
Meadway, Harpenden, AL5 1J 149m2 £7,105 19
Coleswood Road, Harpenden, AL5 1E 103m2 £6,151 17
Southdown Road, Harpenden, AL5 1Q 57m2 £5,319 16
Eastmoor Park, Harpenden, AL5 1B 128m2 £5,996 15
Grove Avenue, Harpenden, AL5 1E 118m2 £6,991 12
Grove Road, Harpenden, AL5 1H 61m2 £7,283 10

Search for your street here.

New build activity

Street Avg size Avg £/m2 New build sales
Gibbs Close, Harpenden, AL5 1F 138m2 £6,346 25

Gibbs Close, Harpenden, AL5 1F has seen 25 new build sales in the last 4 years (average price £890,150). These new build homes typically have an internal area of 138 m2, with an average price of £6,346 m2. This £sqm average is £-454 below the average for AL5 1. New builds typically command a £ per sqm premium. In the case of Gibbs Close the premium seems not to exist. Without more info we can only speculate why this may be. Perhaps it may be greater density and smaller gardens, but this is just a guess.

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
68, Wheathampstead Rd, Harpenden £1,187,500
165 7,196
45, Eastcote Drive, Harpenden £695,000
106 6,556
61, Leycroft Way, Harpenden £800,000
110 7,272

See the entire list of all sales in Harpenden (AL5 1) 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.