House prices in AL7 4 (Welwyn Garden City)

This article reveals price per square metre data and various charts to help you understand current housing market in Welwyn Garden City (AL7 4).

Defining 'AL7 4'

This analysis is limited to properties whose postcode starts with "AL7 4", this is also called the postcode sector. It is shown in red on the map above. There are no official names for postcode sectors so I've just labelled it Welwyn Garden City.

You can click on the map labels to change to a neighbouring sector, or you can enter a different postcode sector (e.g. CM23 4) below.

FYI, a postcode sector is the full postcode without the last two letters.

Price per square metre

Knowing the average house price in Welwyn Garden City 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. 35, Archers Ride, Welwyn Garden City, sold for £395,000 on Mar-2024. Given the internal area of 78 square metres, the price per sqm is £5,064.

England & Wales have been officially metric since 1965. However house price per square foot is prefered by some estate agents and those of sufficiently advanced age ;-) They may want to convert square meters 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. £4,800-£5,000, £5,000-£5,200, £5,200-£5,400 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 163 sales in Welwyn Garden City (AL7 4) that took place in the last two years.

Distribution of £ per sqm for Welwyn Garden City
Distribution of £ per sqm house prices in Welwyn Garden City

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 Welwyn Garden City (AL7 4). Of the 163 transactions, half were sold for between £4,440 and £5,460 per square metre. The median, or 'middle', price per square metre in 'AL7 4' is £4,930. Notably, only 25% of properties that sold recently were valued at more than £5,460 sqm. For anything to be valued more than this means it has to be more desireable than the clear majority of homes.

Price map for Welwyn Garden City

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 Welwyn Garden City. 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 Welwyn Garden City
House price heatmap for Welwyn Garden City

Comparison with neighbouring postcode sectors

The table below shows how 'AL7 4' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
AL7 2 Welwyn Garden City £4,350 sqm £4,930 sqm £5,760 sqm
AL7 3 Welwyn Garden City £4,460 sqm £4,940 sqm £5,730 sqm
AL7 4 Welwyn Garden City £4,440 sqm £4,930 sqm £5,460 sqm
AL7 1 Welwyn Garden City £3,960 sqm £4,520 sqm £5,000 sqm

Will Welwyn Garden City 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 chart below for AL7 4 (Welwyn Garden City) compared with both the wider area AL7 and inflation (CPIH from the Office of National Statistics). The dashed trend lines in the chart show the average over time.

Historic price per square metre in Welwyn Garden City,Welwyn Garden City
House price trends for Welwyn Garden City

For the most recent sales activity, rather than a summarized average, it is better to see the underlying data. This is shown in the chart below, where blue dots represent individual sales, click on them to see details. If there is an obvious trend you should be able to spot it here amid the noise from outliers.

Most recent AL7 4 sales
Recent trends for Welwyn Garden City

Data from Land Registry comes in gradually over time. I update it every month but it takes about 5 months for the majority of sales for Welwyn Garden City to be recorded. Disclaimer: I do not verify and cannot guarantee the accuracy of any data shown. Outliers exist in the data, typically these are where the EPC registry records the internal area incorrectly, sometimes although very rarely the Land Registry price paid data can be wrong. The data provided throughout this website about Welwyn Garden City 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.

Street level data

Street Avg size Avg £sqm Recent sales
Eddington Crescent, Welwyn Garden City, AL7 4S 75 sqm £4,334 34
Howlands, Welwyn Garden City, AL7 4H 79 sqm £4,620 24
Merrifield Court, Welwyn Garden City, AL7 4S 63 sqm £4,111 23
Thistle Grove, Welwyn Garden City, AL7 4A 82 sqm £4,848 22
Sir John Newsom Way, Welwyn Garden City, AL7 4F 70 sqm £4,272 15
Duchess Court, Welwyn Garden City, AL7 4F 66 sqm £4,543 14
Howlands, Welwyn Garden City, AL7 4R 90 sqm £5,311 14
Chambers Grove, Welwyn Garden City, AL7 4F 113 sqm £3,923 12

Search for your street here.

New build activity

Street Avg size Avg £sqm New build sales
Charlotte Court, Welwyn Garden City, AL7 4F 66 sqm £4,659 18

Charlotte Court, Welwyn Garden City, AL7 4F has seen 18 new build sales in the last 4 years (average price £310,500). These new build homes typically have an internal area of 66 sqm, with an average price of £4,659 sqm. This £sqm average is £-271 below the average for AL7 4. New builds typically command a £ per sqm premium. In the case of Charlotte Court 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 Welwyn Garden City 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 sqm £/sqm
35, Archers Ride, Welwyn Garden City £395,000
78 5,064
97, Merrifield Court, Welwyn Garden City £215,000
51 4,215
80, Boundary Lane, Welwyn Garden City £510,000
104 4,903

See the entire list of all sales in Welwyn Garden City (AL7 4) here.


I created HouseMetric because I wanted to see this data and analysis myself, I also wanted to teach myself to build a website. Please give me feedback or spread the word about it. I'm constantly tinkering and adding more stuff to it.