House prices in CF3 0 (St Mellons)

This article reveals price per square metre data and various charts to help you understand current housing market in 'CF3 0' (St Mellons) - statistics were last calculated on 30 August 2024.

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Defining 'CF3 0'

This analysis is limited to properties whose postcode starts with "CF3 0", 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 St Mellons.

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

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

Price per square metre

Knowing the average house price in St Mellons 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. 7, Ffordd Daniel Lewis, St Mellons, sold for £320,000 on Jul-2024. Given the internal area of 107 square metres, the price per sqm is £2,990.

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. £3,350-£3,500, £3,500-£3,650, £3,650-£3,800 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 201 sales in St Mellons (CF3 0) that took place in the last two years.

Generate a custom chart like the one above but based on your own criteria.

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 St Mellons (CF3 0). Of the 201 transactions, half were sold for between £2,720 and £3,470 per square metre. The median, or 'middle', price per square metre in 'CF3 0' is £3,140. Notably, only 25% of properties that sold recently were valued at more than £3,470 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 St Mellons

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 St Mellons. 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.

House price heatmap for St Mellons

Comparison with neighbouring postcode sectors

The table below shows how 'CF3 0' compares to neighbouring postcode sectors.

Postcode sector	Lower quartile	Middle quartile	Upper quartile
CF3 3 Rumney	£2,280 sqm	£2,650 sqm	£3,210 sqm
CF3 2 Marshfield	£2,980 sqm	£3,410 sqm	£3,930 sqm
CF3 5 Llanrumney	£2,230 sqm	£2,530 sqm	£2,870 sqm
CF3 6 Old St Mellons	£3,260 sqm	£3,740 sqm	£4,020 sqm
CF3 1 Rumney	£2,010 sqm	£2,200 sqm	£2,690 sqm
CF3 0 St Mellons	£2,720 sqm	£3,140 sqm	£3,470 sqm
CF3 4 Llanrumney	£2,110 sqm	£2,440 sqm	£2,790 sqm

Will St Mellons 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 CF3 0 (St Mellons) compared with both the wider area CF3 and inflation (CPIH from the Office of National Statistics). The dashed trend lines in the chart show the average over time.

Download time series data as CSV (paying users only).

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.

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 St Mellons 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 St Mellons 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
Heritage Park, St Mellons, CF3 0D	63 sqm	£2,911	27
Willowbrook Gardens, St Mellons, CF3 0B	82 sqm	£2,717	24
Spencer David Way, St Mellons, CF3 0Q	95 sqm	£2,492	20
Matthysens Way, St Mellons, CF3 0P	81 sqm	£2,964	16
Rhodfa Crughywel, St Mellons, CF3 0F	76 sqm	£2,543	15
Sanderling Drive, St Mellons, CF3 0D	76 sqm	£2,974	14
Harrison Drive, St Mellons, CF3 0P	78 sqm	£2,956	13
Orchard Park, St Mellons, CF3 0A	63 sqm	£2,887	13

Search for your street here.

Raw data

Our analysis of St Mellons 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
7, Ffordd Daniel Lewis, St Mellons	£320,000 Jul-2024	107	2,990
14, Locke Grove, St Mellons	£185,000 Jul-2024	59	3,135
12, Orchid Close, St Mellons	£158,000 Jun-2024	50	3,160

See the entire list of all sales in St Mellons (CF3 0) here.