Postcode district
SL9: house prices and neighbourhoods
The SL9 postcode district (Buckinghamshire, Three Rivers): 872 live postcodes across 7 neighbourhoods, with official figures as of 3 October 2026.
Typical house price
£865,000
Median of 45 resales of existing houses in SL9, Aug 2025 to Aug 2026.
Source: HM Land Registry Price Paid Data
Typical flat price
£368,500
Median of 12 resales of existing flats in SL9, Aug 2025 to Aug 2026.
Source: HM Land Registry Price Paid Data
Neighbourhoods in SL9
| Neighbourhood | Council | Typical house | Typical flat | Affluence today | Signs of gentrification |
|---|---|---|---|---|---|
| Chalfont Common & St Peter East | Buckinghamshire | £820,000 | £405,000 | Among the most affluent | Mixed signs |
| Chalfont St Giles, Seer Green & Jordans | Buckinghamshire | £890,000 | – | Among the most affluent | Few signs |
| Chalfont St Peter West | Buckinghamshire | £825,000 | – | Among the most affluent | Few signs |
| Denham | Buckinghamshire | £620,000 | £328,750 | Among the most affluent | Few signs |
| Farnham & Hedgerley | Buckinghamshire | £860,000 | £308,000 | Among the most affluent | Clear signs |
| Gerrards Cross | Buckinghamshire | £1,340,000 | £496,250 | Among the most affluent | Clear signs |
| Mill End, Heronsgate & Maple Cross | Three Rivers | £492,500 | £280,000 | Middle income | Few signs |
Each neighbourhood's figures are the median resale prices of houses and flats, Affluence today and the gentrification indication from its own page.
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Prepare a full report for a home See a sample reportNeighbourhood names: House of Commons Library, MSOA Names, Open Parliament Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Contains National Statistics data © Crown copyright and database right 2026. Figures describe the area, not any home, and are not a valuation or a prediction.