House prices in 'SL9 7', Gerrards Cross

Price per square foot data and charts revealed. Latest statistics for the housing market in 'SL9 7' (Gerrards Cross, Chalfont St Peter) - calculated on 04 March 2026.

Defining 'SL9 7'

This analysis is limited to properties whose postcode starts with "SL9 7", this is also called the postcode sector. There are no official postcode sector names so I've just labelled it SL9 7, Gerrards Cross. It is shown in red on the map below.

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You can click on the map above to change to a neighbouring sector, or you can use the search form below.

Price per square foot

Knowing the average house price in SL9 7 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

For example in January 2026, 19, Upper Meadow, Gerrards Cross, SL9 7EY sold for £700,000. Given the internal area of 1,442 square feet recorded on the EPC, the price per sqft is £700,000 ÷ 1,442 sqft = £485.

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 ;-). You can change your prefered units from square meters to square feet for all the graphs and charts on SL9 7 and elsewhere. Just visit the My Account page and look for the m2 to ft2 toggle switch. Alternatively just multiply everything by 10, move a decimal place to go from sqm to sqft and you'll be close enough as 1 sqm = 10.76391 sqft.

Distribution of £ per sqft for 'SL9 7' vs 'SL9'

The chart above is called a histogram, it helps you see the distribution of house price per sqft in SL9 7 To make this chart we put all the sales data into a series of £ per sqft 'buckets' (e.g. £571 to £603, £603 to £636, £636 to £668 etc...) we then count the number of sales with within in each bucket and plot the results. The histogram is based on 127 sales that took place in SL9 7, Gerrards Cross, Chalfont St Peter in the last 24 months.

Generate a custom histogram 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 SL9 7, Gerrards Cross. Notably, only 25% of properties that sold recently were valued at more than £694 sqft. For anything to be valued more than this means it has to be more desireable than the clear majority of SL9 7 homes.

Box plot of £ per sqft for SL9 7

Tip: click on the chart to see the values.

The chart above is called a boxplot (or a box-and-whisker plot). Box plots, like histograms, are used to graphically represent the distribution of data, showing the central tendency, spread of the distribution. In the context of £ per square foot property price distributions, box plots represent the variation in property prices within a geographic area e.g. Gerrards Cross. The chart above shows a boxplot for 'SL9 7' as well as the 'SL9' postcode district.

  • Median: The horizontal line inside the box represents the median (£ per square meter). This is the midpoint of the data, meaning 50% of the prices are below this value, and 50% are above. The middle price per square foot in 'SL9 7' is £586.
  • Interquartile Range (IQR): The box spans from the 25th percentile (Q1) to the 75th percentile (Q3). This is the range where the middle 50% of the data lies, giving a good indication of the typical price spread. Of the 127 transactions in SL9 7, Gerrards Cross half were sold for between £496 and £694 per square foot.
  • Whiskers: In our case, the whiskers extend from the 9th percentile (at the lower end) to the 91st percentile (at the upper end), This provides a slightly broader view of the distribution by including the middle 82% of records. The whiskers capture most of the variation but exclude extreme outliers caused by data errors in recording sold house prices or internal area.
  • 'n=' is the number of property transactions the box plot is based on; 127 for SL9 7, Gerrards Cross.

    • Property price map for Gerrards Cross

    Have a look at the interactive price map I created for myself. Use it to explore house prices in 'Gerrards Cross' all the way down to individual property plots.

    House price heatmap showing property values across Gerrards Cross 🔍 Explore map ›

    Gerrards Cross house price forecasting

    House prices in SL9 7 fell -13.7% in the last year, -16.4% after inflation. Whether or not this trend will continue depends on many factors, such as wage growth, net migration, interest rates and the level of house building. No one can predict these things with certainty however we can plot the historic trends in house prices in SL9 7 (Gerrards Cross) compared with the wider postcode district of SL9.

    House price index for SL9 7

    Tip: click on the legend items to show/hide different lines

    Download house price index as CSV (premium users only).

    The chart above shows changes in 'SL9 7' property prices over the last 20 years. The index is calculated from the average price paid per sqft for property in SL9 7 and is set to 100 in 2004. I'm comparing the trends for SL9 7,Gerrards Cross with the wider postcode district of SL9 What is more interesting is to look at the difference between flats and houses, even those in the same area follow a very different trend, to get a robust enough sample size to see this we need to zoom out and look at house price trends for the entire Buckinghamshire local authority.

    The dashed lines show nominal house price changes, the solid lines show the same data adjusted for inflation. Economists call this the 'real' price change. You have to take inflation into account when comparing prices over time. It's calculated using the formula:

    Real Rate of Return = (1 + Nominal Rate) ÷ (1 + Inflation Rate) – 1
    In this formula, the nominal rate is the rate of change before any adjustments, and the inflation rate is taken from the Consumer Price Index. The real rate of return is a more accurate measure of change in value, because £1 today does not have the same buying power as £1 in the past. For example, if a savings account pays an interest rate of 3% per year and the inflation rate is 5% per year, the real rate of return is -2%. This means that the investment's value is shrinking by 2% each year.

    Historic returns for SL9 7
    SL9 7 sector SL9 district
    Nominal Real Nominal Real
    20 yr per annum 2.0% -0.8% 2.6% -0.2%
    20 yr total 49.9% -14.0% 68.2% -3.5%
    10 yr per annum -0.5% -3.8% -0.1% -3.4%
    10 yr total -5.3% -32.1% -1.1% -29.1%
    5 yr per annum -1.2% -5.9% -1.8% -6.5%
    5 yr total -5.8% -26.1% -8.6% -28.4%
    1 yr per annum -13.7% -16.4% -10.2% -13.0%
    1 yr total -13.7% -16.4% -10.2% -13.0%

    This table complements the house price index chart above, presenting the data in a more detailed format. It breaks down the information into 20-year, 10-year, 5-year, and 1-year periods, further categorized by property type. For each period, we display both a per annum rate of change and a total rate of change.

    The total rate of change represents the overall change over the entire period. The formula for total return is:

    Total return = (Index at end of period ÷ Index at start of period) - 1

    The per annum rate of change is the annualized rate of change over the period. This is equivalent to the annual bank savings rate you would need to achieve the same total return over the given period. This annualized return is also known as the Compound Annual Growth Rate (CAGR). The formula for CAGR is:

    CAGR = (1 + Total return) ^ (1 ÷ Number of years) - 1

    Some specific examples:

    • Over the past 20 years, SL9 district have seen a -0.2% annual change when adjusted for inflation. This translates to a total change of -3.5% in real terms.
    • Over the past 5 years, SL9 district have seen a -6.5% annual change when adjusted for inflation. This translates to a total change of -28.4% in real terms.

    Most recent SL9 7 sales

    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.

    Tip: hover over dots to see details

    Street level data

    Street Avg size Avg £sqft Recent sales
    Fulmer Drive, Gerrards Cross, SL9 7H 3,562 sqft £570 15
    Windsor Road, Gerrards Cross, SL9 7N 3,778 sqft £491 12
    High Beeches, Gerrards Cross, SL9 7H 2,195 sqft £708 10
    Dukes Wood Drive, Gerrards Cross, SL9 7L 3,121 sqft £651 8
    Oxford Road, Gerrards Cross, SL9 7A 1,216 sqft £541 7
    St Huberts Close, Gerrards Cross, SL9 7E 2,260 sqft £547 7
    Bulstrode Court, Gerrards Cross, SL9 7R 936 sqft £448 7
    Marsham Lodge, Gerrards Cross, SL9 7A 1,087 sqft £691 6

    Search for your street here.

    Nearby geographies

    The table below shows how 'SL9 7' compares to the other postcode sectors in SL9.

    Sector Lower quartile Median Upper quartile Sales in last 2yr
    UB9 5 Uxbridge £464 sqft £525 sqft £592 sqft 130
    UB9 4 Uxbridge £488 sqft £541 sqft £613 sqft 57
    SL9 9 Chalfont St Peter £479 sqft £534 sqft £597 sqft 175
    SL9 8 Chalfont St Peter £528 sqft £602 sqft £682 sqft 121
    SL9 7 Gerrards Cross £496 sqft £586 sqft £694 sqft 127
    SL9 0 Chalfont St Peter £505 sqft £553 sqft £650 sqft 132
    SL3 6 George Green £431 sqft £518 sqft £587 sqft 53
    SL0 0 Iver £445 sqft £495 sqft £585 sqft 171

    Raw data

    Our analysis of SL9 7 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
    19, Upper Meadow, Gerrards Cross, Chalfont St Peter £700,000
    Jan-2026
    		 1,442 485
    85, Fulmer Drive, Gerrards Cross, Chalfont St Peter £1,800,000
    Dec-2025
    		 2,873 626
    65, Windsor Rd, Gerrards Cross, Chalfont St Peter £1,700,000
    Nov-2025
    		 3,304 514

    See the entire list of all sales in SL9 7 here.

    About

    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.