House prices in CM1 3 (Writtle)

This article reveals price per square metre data and various charts to help you understand current housing market in Writtle, Chelmsford (CM1 3).

Defining 'CM1 3'

This analysis is limited to properties whose postcode starts with "CM1 3", 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 Writtle.

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 Writtle 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. 92, Crompton Street, Writtle, Chelmsford, sold for £152,500 on Feb-2024. Given the internal area of 44 square metres, the price per sqm is £3,465.

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. £5,700-£6,000, £6,000-£6,300, £6,300-£6,600 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 174 sales in Writtle (CM1 3) that took place in the last two years.

Distribution of £ per sqm for Writtle, Chelmsford
Distribution of £ per sqm house prices in Writtle

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 Writtle (CM1 3). Of the 174 transactions, half were sold for between £3,760 and £5,210 per square metre. The median, or 'middle', price per square metre in 'CM1 3' is £4,440. Notably, only 25% of properties that sold recently were valued at more than £5,210 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 Writtle, Chelmsford

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 Chelmsford. 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 Writtle
House price heatmap for Writtle, Chelmsford

Comparison with neighbouring postcode sectors

The table below shows how 'CM1 3' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
CM1 2 Chelmsford £3,940 sqm £4,460 sqm £5,090 sqm
CM1 1 Chelmsford £3,860 sqm £4,280 sqm £4,860 sqm
CM1 4 Chelmsford £4,040 sqm £4,650 sqm £5,310 sqm
CM1 6 Chelmsford £4,040 sqm £4,630 sqm £5,270 sqm
CM1 3 Writtle £3,760 sqm £4,440 sqm £5,210 sqm
CM1 7 Broomfield £4,060 sqm £4,690 sqm £5,120 sqm

Will Chelmsford 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 CM1 3 (Writtle) compared with both the wider area CM1 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 Writtle,Chelmsford
House price trends for Writtle

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 CM1 3 sales
Recent trends for Writtle

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 Chelmsford 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 Chelmsford 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
Parkinson Drive, Writtle, CM1 3G 70 sqm £3,626 44
Rookes Crescent, Writtle, CM1 3G 67 sqm £3,830 31
Ongar Road, Writtle, CM1 3N 105 sqm £4,771 27
Writtle Road, Writtle, CM1 3B 97 sqm £4,269 18
Mayfield Road, Writtle, CM1 3E 103 sqm £5,462 18
Millfields, Writtle, CM1 3L 103 sqm £4,301 16
Melba Court, Writtle, CM1 3E 48 sqm £4,453 14
Crompton Street, Writtle, CM1 3G 67 sqm £3,426 13

Search for your street here.

Raw data

Our analysis of Writtle 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
92, Crompton St, Writtle, Chelmsford £152,500
44 3,465
30, Evelyn Pl, Writtle, Chelmsford £182,500
54 3,379
Nightingale Cottage, Nathans Lane, Writtle, Chelmsford £1,075,000
152 7,072

See the entire list of all sales in Writtle (CM1 3) 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.