House prices in DA15 7 (Sidcup)

This article reveals price per square foot data and various charts to help you understand current housing market in Sidcup (DA15 7).

Defining 'DA15 7'

This analysis is limited to properties whose postcode starts with "DA15 7", 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 Sidcup.

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 foot

Knowing the average house price in Sidcup is not much use. However, knowing average price per square foot can be quite useful. Price per sqft allows some comparison between properties of different size. We define price per square foot as the sold price divided by the internal area of a property:

£ per sqft = price ÷ internal area
E.g. 17, Christchurch Road, Sidcup, sold for £980,000 on Apr-2024. Given the internal area of 1,539 square feet, the price per sqft is £636.

England & Wales have been officially metric for many decades. Convert this site to square meters.

The chart below is called a histogram, it helps you see the distribution of this house price per sqft data. To make this chart we put the sales data into a series of £ per sqft 'buckets' (e.g. etc...) we then count the number of sales with within in each bucket and plot the results. The chart is based on 137 sales in Sidcup (DA15 7) that took place in the last two years.

Distribution of £ per sqft for Sidcup
Distribution of £ per sqft house prices in Sidcup

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 Sidcup (DA15 7). Of the 137 transactions, half were sold for between £399 and £546 per square foot. The median, or 'middle', price per square foot in 'DA15 7' is £472. Notably, only 25% of properties that sold recently were valued at more than £546 sqft. For anything to be valued more than this means it has to be more desireable than the clear majority of homes.

Price map for Sidcup

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 Sidcup. 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 Sidcup
House price heatmap for Sidcup

Comparison with neighbouring postcode sectors

The table below shows how 'DA15 7' compares to neighbouring postcode sectors.

Postcode sector Lower quartile Middle quartile Upper quartile
DA15 8 Sidcup £482 sqft £538 sqft £599 sqft
DA15 7 Sidcup £399 sqft £472 sqft £546 sqft
DA15 9 Sidcup £460 sqft £530 sqft £598 sqft

Will Sidcup 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 DA15 7 (Sidcup) compared with both the wider area DA15 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 foot in Sidcup,Sidcup
House price trends for Sidcup

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 DA15 7 sales
Recent trends for Sidcup

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 Sidcup 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 Sidcup 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 £sqft Recent sales
Longlands Road, Sidcup, DA15 7L 839 sqft £452 44
Manor Road, Sidcup, DA15 7H 764 sqft £388 30
Station Road, Sidcup, DA15 7D 925 sqft £425 21
Woodside Road, Sidcup, DA15 7J 807 sqft £501 21
Station Road, Sidcup, DA15 7A 570 sqft £445 20
Station Road, Sidcup, DA15 7J 452 sqft £302 14
Shirley Road, Sidcup, DA15 7J 828 sqft £513 14
Harland Avenue, Sidcup, DA15 7N 0 sqft £505 14

Search for your street here.

Raw data

Our analysis of Sidcup 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 sqft £/sqft
17, Christchurch Rd, Sidcup £980,000
1,539 636
34, Marechal Niel Avenue, Sidcup £660,000
1,119 589
40, Shirley Rd, Sidcup £380,000
505 751

See the entire list of all sales in Sidcup (DA15 7) 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.