House prices in CF15 9 (Creigiau)

This article reveals price per square metre data and various charts to help you understand current housing market in Creigiau, Radyr (CF15 9).

Defining 'CF15 9'

This analysis is limited to properties whose postcode starts with "CF15 9", 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 Creigiau.

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 Creigiau 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. 6, Bryn Briallu, Creigiau, Radyr, sold for £862,500 on Dec-2023. Given the internal area of 205 square metres, the price per sqm is £4,207.

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. £3,250-£3,500, £3,500-£3,750, £3,750-£4,000 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 108 sales in Creigiau (CF15 9) that took place in the last two years.

Distribution of £ per sqm for Creigiau, Radyr
Distribution of £ per sqm house prices in Creigiau

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 Creigiau (CF15 9). Of the 108 transactions, half were sold for between £3,090 and £4,070 per square metre. The median, or 'middle', price per square metre in 'CF15 9' is £3,600. Notably, only 25% of properties that sold recently were valued at more than £4,070 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 Creigiau, Radyr

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 Radyr. 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 Creigiau
House price heatmap for Creigiau, Radyr

Comparison with neighbouring postcode sectors

The table below shows how 'CF15 9' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
CF15 8 Radyr £2,960 sqm £3,440 sqm £4,000 sqm
CF15 9 Creigiau £3,090 sqm £3,600 sqm £4,070 sqm
CF15 7 Taffs Well £2,190 sqm £2,940 sqm £3,430 sqm

Will Radyr 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 CF15 9 (Creigiau) compared with both the wider area CF15 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 Creigiau,Radyr
House price trends for Creigiau

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 CF15 9 sales
Recent trends for Creigiau

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 Radyr 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 Radyr 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
Llys Dewi, Creigiau, CF15 9J 59 sqm £3,220 13
Parc Castell Y Mynach, Creigiau, CF15 9N 118 sqm £3,424 13
Parc Y Fro, Creigiau, CF15 9S 101 sqm £3,284 11
Garth Olwg, Creigiau, CF15 9H 101 sqm £2,905 8
Maes Y Sarn, Creigiau, CF15 9Q 116 sqm £3,183 8
Clos Goch, Creigiau, CF15 9R 125 sqm £3,683 8
Parc Y Felin, Creigiau, CF15 9P 96 sqm £3,628 6
River Glade, Creigiau, CF15 9S 99 sqm £3,530 6

Search for your street here.

Raw data

Our analysis of Creigiau 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
6, Bryn Briallu, Creigiau, Radyr £862,500
205 4,207
8, Ffordd Dinefwr, Creigiau, Radyr £400,000
109 3,669
10, Tyn Y Coed Rd, Creigiau, Radyr £690,000
188 3,670

See the entire list of all sales in Creigiau (CF15 9) 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.