SL9 area guide
House prices, recent sales, crime and schools for the SL9 postcode district in Buckinghamshire. Free to read, from official open data. For one address in detail, run a full property report.
Buckinghamshire · 2026-07 (UK HPI)
Median £555,000
Street-level crime at the district centre
Ofsted rated, within one mile
What the data says about SL9
The average home across Buckinghamshire is worth about £479,736 (UK House Price Index, 2026-07), and the median of the 11 most recent Land Registry sales recorded inside SL9 is £555,000, and prices have risen 1.1% over the last year.
Of 101 energy certificates sampled across 12 postcodes in SL9, band D is the most common, and 78.2% of homes sit below band C — the point at which most lenders' green mortgage deals and future rental rules bite.
Police recorded 344 crimes around the centre of SL9 in the six months to 2026-07, most often violence and sexual offences (96).
There are 1 schools rated Good or Outstanding by Ofsted within a mile of SL9 in Buckinghamshire, including St Joseph's Catholic Primary School.
The district covers the Chalfont St Giles & Little Chalfont, Chalfont St Peter, Chorleywood South & Maple Cross, Farnhams & Stoke Poges ward areas.
Sample of 101 energy certificates from 12 postcodes in SL9, taken from the government energy performance register, most recent lodged 2026. Indicative of the district rather than a full census.
Prices changed +1.1% over the last year in Buckinghamshire.
Street-level crime from data.police.uk, six months to 2026-07.
Primary
- St Joseph's Catholic Primary SchoolNot rated · 0.4 mi
- Maltman's Green SchoolNot rated · 0.5 mi
- Gayhurst SchoolNot rated · 0.5 mi
- Chalfont St Peter CofE AcademyGood · 0.7 mi
- Chalfont St Peter Infant SchoolNot rated · 1.0 mi
Secondary
- Thorpe House SchoolNot rated · 0.2 mi
- St Mary's SchoolNot rated · 0.4 mi
- The Chalfonts Community CollegeGood · 1.0 mi
- The Reach Free SchoolNot rated · 3.3 mi
Chalfont St Giles & Little Chalfont · Chalfont St Peter · Chorleywood South & Maple Cross · Farnhams & Stoke Poges · Gerrards Cross & Denham
Common questions about SL9
What is the average house price in SL9?
The UK House Price Index puts the average home in Buckinghamshire at £479,736 as of 2026-07. Recent Land Registry sales recorded inside the SL9 district have a median price of £555,000.
How much does each property type cost in SL9?
Detached £858,673, semi-detached £472,407, terraced £378,389, flats £234,615, based on the UK House Price Index for Buckinghamshire.
Is SL9 a safe area?
Police recorded 344 crimes near the centre of SL9 in the six months to 2026-07. The most common category was violence and sexual offences with 96 reports. Crime is recorded at street level, so figures vary street to street within the same district.
What EPC rating do homes in SL9 usually have?
Band D is the most common rating in our sample of 101 certificates from SL9, with 78.2% of homes rated below band C. A full property report shows the exact certificate, running costs and recommended improvements for one address.
What are the schools like near SL9?
1 schools within a mile of the SL9 district centre are rated Good or Outstanding by Ofsted. Nearby secondaries include Thorpe House School. Catchment areas are set by the local authority and can change year to year.
Where does this SL9 data come from?
HM Land Registry Price Paid Data and the UK House Price Index for prices, the government's energy performance register for EPC bands, data.police.uk for crime, Get Information About Schools and Ofsted for schools, and ONS postcode geography. All are published under the Open Government Licence v3.0.
A full report covers the energy certificate, sale history and valuation, council tax band and bill, flood and crime risk, schools, transport and neighbourhood data for a single property.
Search an addressMore on SL9
Nearby SL postcode districts
Sources: HM Land Registry Price Paid Data and UK House Price Index, ONS postcode geography, data.police.uk, Get Information About Schools and Ofsted. Contains public sector information licensed under the Open Government Licence v3.0.