Feb 07, 2023 by HM

House prices in Keynsham (BS31 1)

This article reveals price per square metre data and various charts to help you understand current housing market in Keynsham (BS31 1).

Defining 'BS31 1'

This analysis is limited to properties whose postcode starts with "BS31 1", this is also called the postcode sector. It is shown in red on the map above. You can click on the map labels to change to a neighbouring sector.

Price per square metre

Knowing the average house price in Keynsham 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. 47, Greenfield Road, Keynsham, sold for £352,000 on Jan-2024. Given the internal area of 102 square metres, the price per sqm is £3,450.

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. £4,250-£4,500, £4,500-£4,750, £4,750-£5,000 etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 214 sales in Keynsham (BS31 1) that took place in the last two years.

Distribution of £ per sqm for Keynsham (BS31 1)
Distribution of £ per sqm house prices in Keynsham

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 Keynsham (BS31 1). Of the 214 transactions, half were sold for between £3,550 and £4,590 per square metre. The median, or 'middle', price per square metre in 'BS31 1' is £4,050. Notably, only 25% of properties that sold recently were valued at more than £4,590m2. For anything to be valued more than this means it has to be more desireable than the clear majority of homes.

Price map for Keynsham

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 Keynsham. 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 Keynsham
House price heatmap for Keynsham

Comparison with neighbouring postcode sectors

The table below shows how 'BS31 1' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
BS31 3 Saltford £4,350m2 £4,650m2 £5,220m2
BS31 1 Keynsham £3,550m2 £4,050m2 £4,590m2
BS31 2 Keynsham £3,480m2 £3,880m2 £4,290m2

Will Keynsham 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 BS31 1 (Keynsham). 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 BS31 1 and the blue dots are the individual property sales that inform this trend.

Price per square metre in Keynsham (BS31 1) over time
House price trends for Keynsham

Hover on any blue dot to see details of specific sales

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

Street level data

Street Avg size Avg £/m2 Recent sales
The Mead, Keynsham, BS31 1F 103m2 £3,779 28
Bath Road, Keynsham, BS31 1S 69m2 £3,051 23
Greenfield Road, Keynsham, BS31 1F 65m2 £3,179 20
Fairacres Close, Keynsham, BS31 1T 58m2 £2,347 13
Dunster Road, Keynsham, BS31 1W 94m2 £3,735 12
Temple Street, Keynsham, BS31 1H 58m2 £3,394 12
Bath Road, Keynsham, BS31 1T 145m2 £3,537 12
Nunney Close, Keynsham, BS31 1X 95m2 £4,440 11

Search for your street here.

New build activity

Street Avg size Avg £/m2 New build sales
Temple Street, Keynsham, BS31 1F 63m2 £3,873 28
Temple Street, Keynsham, BS31 1G 70m2 £3,967 24
Fairfield Way, Keynsham, BS31 1G 112m2 £4,039 18

Temple Street, Keynsham, BS31 1F has seen 28 new build sales in the last 4 years (average price £247,541). These new build homes typically have an internal area of 63 m2, with an average price of £3,873 m2. This £sqm average is £-177 below the average for BS31 1. New builds typically command a £ per sqm premium. In the case of Temple Street the premium seems not to exist. Without more info we can only speculate why this may be. Perhaps it may be greater density and smaller gardens, but this is just a guess.

Raw data

Our analysis of Keynsham 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
47, Greenfield Rd, Keynsham £352,000
102 3,450
13, Fairacres Close, Keynsham £145,000
59 2,457
Flat 31 Homeavon House, Bath Rd, Keynsham £155,000
59 2,627

See the entire list of all sales in Keynsham (BS31 1) 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.