Feb 07, 2023 by HM

House prices in Grangetown (CF11 6)

This article reveals price per square metre data and various charts to help you understand current housing market in Grangetown (CF11 6).

Price per square metre

Knowing the average house price in Grangetown 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. 69, Hereford Street, Grangetown, Cardiff, sold for £180,000 on Aug-2023. Given the internal area of 65 square metres, the price per sqm is £2,769.

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. £2,350-£2,500, £2,500-£2,650, £2,650-£2,800 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 211 sales in Grangetown (CF11 6) that took place in the last two years.

Distribution of £ per sqm for Grangetown (CF11 6)
Distribution of £ per sqm house prices in Grangetown

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 Grangetown (CF11 6). Of the 211 transactions, half were sold for between £2,150 and £2,900 per square metre. Notably, only 25% of properties that sold recently were valued at more than £2,900m2. 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 'CF11 6' is £2,570. The table below shows how 'CF11 6' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
CF11 7 Cardiff £2,290m2 £2,570m2 £2,930m2
CF11 9 Canton £3,210m2 £3,680m2 £4,320m2
CF11 0 Cardiff £2,100m2 £2,810m2 £3,560m2
CF11 6 Grangetown £2,150m2 £2,570m2 £2,900m2
CF11 8 Canton £2,900m2 £3,250m2 £3,640m2

Will Grangetown 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 CF11 6 (Grangetown). 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 CF11 6 and the blue dots are the individual property sales that inform this trend.

Price per square metre in Grangetown (CF11 6) over time
House price trends for Grangetown

Hover on any blue dot to see details of specific sales

Disclaimer: The data provided throughout this website about Grangetown 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 Grangetown data or any other data I am given.

Price map for Grangetown

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 Grangetown. 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 Grangetown
House price heatmap for Grangetown

Street level data

Street Avg size Avg £/m2 Recent sales
Dorset Street, Grangetown, CF11 6P 85m2 £2,531 17
Lewis Street, Grangetown, CF11 6J 60m2 £2,767 17
Fitzhamon Embankment, Grangetown, CF11 6A 77m2 £2,346 16
Blaise Place, Grangetown, CF11 6J 60m2 £3,178 13
Wedmore Road, Grangetown, CF11 6S 85m2 £2,273 13
Warwick Street, Grangetown, CF11 6P 67m2 £2,778 11
North Clive Street, Grangetown, CF11 6N 77m2 £2,391 11
Ninian Park Road, Grangetown, CF11 6J 99m2 £1,987 10

Search for your street here.

Raw data

Our analysis of Grangetown 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
69, Hereford St, Grangetown, Cardiff £180,000
65 2,769
50, Stafford Rd, Grangetown, Cardiff £214,000
59 3,627
Flat 6 Edward House, Plantagenet St, Grangetown, Cardiff £160,000
57 2,807

See the entire list of all sales in Grangetown (CF11 6) 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.