Feb 07, 2023 by HM

House prices in Welwyn Garden City (AL7 4)

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

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. 20, Homestead Lane, Welwyn Garden City, sold for £638,000 on Oct-2023. Given the internal area of 114 square metres, the price per sqm is £5,596.

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. £4,250-£4,500, £4,500-£4,750, £4,750-£5,000 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 187 sales in Welwyn Garden City (AL7 4) that took place in the last two years.

Distribution of £ per sqm for Welwyn Garden City (AL7 4)
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.

That said, the spread of prices will give you a feel of the typical range to expect in Welwyn Garden City (AL7 4). Of the 187 transactions, half were sold for between £4,320 and £5,420 per square metre. Notably, only 25% of properties that sold recently were valued at more than £5,420m2. For anything to be valued more than this means it has to be more desireable than the clear majority of homes.

For the average, we calculate the 'median' or middle price. The median price per square metre in 'AL7 4' is £4,900. The table below shows how 'AL7 4' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
AL7 1 Welwyn Garden City £3,940m2 £4,390m2 £4,950m2
AL7 3 Welwyn Garden City £4,460m2 £4,940m2 £5,710m2
AL7 4 Welwyn Garden City £4,320m2 £4,900m2 £5,420m2
AL7 2 Welwyn Garden City £4,250m2 £4,950m2 £5,770m2

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 scatter plot below for AL7 4 (Welwyn Garden City). 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 AL7 4 and the blue dots are the individual property sales that inform this trend.

Price per square metre in Welwyn Garden City (AL7 4) over time
House price trends for Welwyn Garden City

Hover on any blue dot to see details of specific sales

Disclaimer: 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. 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 Welwyn Garden City data or any other data I am given.

Price map for Welwyn Garden City

I've just finished coding the map I link to below. 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. I will explain more about the methodology and create a key next week.

Property price heatmap for Welwyn Garden City
House price heatmap for Welwyn Garden City

Street level data

Street Avg size Avg £/m2 Recent sales
Eddington Crescent, Welwyn Garden City, AL7 4S 75m2 £4,288 39
Thistle Grove, Welwyn Garden City, AL7 4A 81m2 £4,779 24
Howlands, Welwyn Garden City, AL7 4H 79m2 £4,569 24
Merrifield Court, Welwyn Garden City, AL7 4S 63m2 £4,096 21
Chequers Field, Welwyn Garden City, AL7 4T 59m2 £3,803 15
Sir John Newsom Way, Welwyn Garden City, AL7 4F 70m2 £4,260 14
The Commons, Welwyn Garden City, AL7 4R 93m2 £4,656 13
Howlands, Welwyn Garden City, AL7 4R 91m2 £5,192 13

Search for your street here.

New build activity

Street Avg size Avg £/m2 New build sales
Charlotte Court, Welwyn Garden City, AL7 4F 66m2 £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 m2, with an average price of £4,659 m2. This £sqm average is £-241 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 m2 £/m2
20, Homestead Lane, Welwyn Garden City £638,000
114 5,596
25, Hunters Way, Welwyn Garden City £455,390
75 6,071
46, Merrifield Court, Welwyn Garden City £282,000
67 4,208

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