Feb 07, 2023 by HM

House prices in Marshfield (CF3 2)

This article reveals price per square metre data and various charts to help you understand current housing market in Marshfield (CF3 2).

Price per square metre

Knowing the average house price in Marshfield 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. 4, Whitethorn Way, Marshfield, St Mellons, sold for £465,000 on Jun-2023. Given the internal area of 97 square metres, the price per sqm is £4,793.

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. £2,800-£3,000, £3,000-£3,200, £3,200-£3,400 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 64 sales in Marshfield (CF3 2) that took place in the last two years.

Distribution of £ per sqm for Marshfield (CF3 2)
Distribution of £ per sqm house prices in Marshfield

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 Marshfield (CF3 2). Of the 64 transactions, half were sold for between £2,750 and £3,850 per square metre. Notably, only 25% of properties that sold recently were valued at more than £3,850m2. 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 'CF3 2' is £3,330. The table below shows how 'CF3 2' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
CF3 1 St Mellons £1,890m2 £2,180m2 £2,540m2
CF3 0 St Mellons £2,650m2 £3,110m2 £3,390m2
CF3 4 Llanrumney £2,010m2 £2,390m2 £2,800m2
CF3 3 Rumney £2,310m2 £2,650m2 £3,240m2
CF3 2 Marshfield £2,750m2 £3,330m2 £3,850m2
CF3 5 Llanrumney £2,210m2 £2,520m2 £2,810m2
CF3 6 Old St Mellons £3,200m2 £3,560m2 £3,900m2

Will Marshfield 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 CF3 2 (Marshfield). 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 CF3 2 and the blue dots are the individual property sales that inform this trend.

Price per square metre in Marshfield (CF3 2) over time
House price trends for Marshfield

Hover on any blue dot to see details of specific sales

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

Price map for Marshfield

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 Marshfield. 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 Marshfield
House price heatmap for Marshfield

Street level data

Street Avg size Avg £/m2 Recent sales
Marshfield Road, Marshfield, CF3 2U 160m2 £2,986 14
Mallards Reach, Marshfield, CF3 2N 110m2 £3,045 11
The Meadows, Marshfield, CF3 2A 110m2 £3,153 10
Marysfield Close, Marshfield, CF3 2T 85m2 £2,457 10
Mallards Reach, Marshfield, CF3 2P 98m2 £3,443 9
The Shires, Marshfield, CF3 2A 127m2 £3,372 8
Blacktown Gardens, Marshfield, CF3 2S 112m2 £2,869 7
Craig-yr-haul Drive, Marshfield, CF3 2S 97m2 £2,630 6

Search for your street here.

New build activity

Street Avg size Avg £/m2 New build sales
Cypress Crescent, Marshfield, CF3 2W 113m2 £3,387 19

Cypress Crescent, Marshfield, CF3 2W has seen 19 new build sales in the last 4 years (average price £391,672). These new build homes typically have an internal area of 113 m2, with an average price of £3,387 m2. This £sqm average is £57 above the average for CF3 2. New builds typically command a £ per sqm premium so this is normal.

Raw data

Our analysis of Marshfield 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
4, Whitethorn Way, Marshfield, St Mellons £465,000
97 4,793
3, Blacktown Gardens, Marshfield, St Mellons £300,000
90 3,333
58, The Meadows, Marshfield, St Mellons £380,000
120 3,166

See the entire list of all sales in Marshfield (CF3 2) 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.