SL9 Postcode Data
Property data for the SL9 postcode district covering Buckinghamshire. Sold prices, crime statistics, energy performance, and demographic insights, all from HM Land Registry, Police UK, and the EPC Register.
Quick answer
The average sale price in SL9 is £488,321 (median £487,500), based on 56 HM Land Registry transactions. Police UK recorded 52 crimes within a 1-mile radius in 2026-03. The average EPC rating across 60 certified properties is 63/100.
Headline pricing in SL9 is above the UK national average (England & Wales average ~£290k as of 2025). Energy efficiency here is weaker than average (expect higher running costs and lower mortgage-affordability scores from green lenders).
Avg sale price
£488,321
56 sales
Median price
£487,500
Crime incidents
52
2026-03
Avg EPC score
63/100
60 certs
Recent sold prices
Latest 30 property sales in the SL9 area, sourced from HM Land Registry Price Paid Data.
detached
£488,321
56 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Oct 2025 | 8, JOINERS LANE, GERRARDS CROSS | detached | £875,000 |
| Nov 2024 | 7, JOINERS LANE, GERRARDS CROSS | detached | £510,000 |
| Jul 2024 | 16, JOINERS LANE, GERRARDS CROSS | detached | £590,000 |
| May 2024 | 51, JOINERS LANE, GERRARDS CROSS | detached | £957,500 |
| Jun 2023 | 29, JOINERS LANE, GERRARDS CROSS | detached | £850,000 |
| Dec 2022 | 2, JOINERS LANE, GERRARDS CROSS | detached | £845,000 |
| Sept 2022 | 47, JOINERS LANE, GERRARDS CROSS | detached | £655,000 |
| Dec 2021 | 19, JOINERS LANE, GERRARDS CROSS | detached | £715,000 |
| Dec 2021 | 2, CHESTNUT CLOSE, GERRARDS CROSS | detached | £1,595,000 |
| Sept 2021 | THE GATE HOUSE, 6, JOINERS LANE, GERRARDS CROSS | detached | £637,500 |
| Jun 2021 | 21, JOINERS LANE, GERRARDS CROSS | detached | £785,000 |
| Jun 2020 | 14, JOINERS LANE, GERRARDS CROSS | detached | £525,000 |
| Feb 2020 | 16, JOINERS LANE, GERRARDS CROSS | detached | £490,000 |
| Sept 2019 | 16, JOINERS LANE, GERRARDS CROSS | detached | £515,000 |
| Sept 2019 | 30, JOINERS LANE, GERRARDS CROSS | detached | £655,000 |
Crime in SL9
52 reported crimes within a 1-mile radius of the postcode centroid in 2026-03, from Police UK data.
Violent Crime
17
Vehicle Crime
9
Anti Social Behaviour
5
Shoplifting
5
Burglary
4
Energy performance
Aggregate EPC stats from 60 recently-certified properties in the SL9 area.
Avg current score
63/100
Avg potential
79/100
Avg energy cost
£1,474/yr
Sample size
60
Rating distribution
A
0
B
5
C
12
D
31
E
10
F
1
G
1
Area information
- Local authority
- Buckinghamshire, Three Rivers
- Country
- England
- Wards
- Chalfont St Giles & Little Chalfont, Chalfont St Peter, Chorleywood South & Maple Cross
- Constituency
- Beaconsfield
- Latitude
- 51.5981
- Longitude
- -0.5557
More for SL9
Typical property
What the typical SL9 property looks like
Area summary, buyer notes, researched facts
Council tax
Buckinghamshire 2025/26 rates
All bands, monthly cost, discounts
Sold prices tool
Full transaction history for SL9
HM Land Registry from 1995
Corporate freeholders
Companies registered in SL9
Live Companies House data + PSCs
EPC checker
Look up any SL9 address
Energy ratings + improvement options
Crime checker
Local breakdown for SL9
Police UK monthly data
Want a full property report?
Get an AI-powered report for any specific SL9 address. Valuation, flood risk, planning history, schools and more.
Get a Property ReportData sources & methodology
Sold prices: HM Land Registry Price Paid Data, the official UK government records updated monthly. Sample uses the 30 most recent registered transactions in the postcode area.
Crime: Police UK street-level crime data. Counts cover a 1-mile radius from the SL9 postcode centroid for the most recent month available (typically 2 months behind).
EPC: opendatacommunities.org, the official UK Energy Performance Certificate register. Aggregate stats from up to 30 most recent certificates in the postcode.
Area data: postcodes.io, open data from the Office for National Statistics.