# SL9 9TQ: area report for a postcode in Buckinghamshire

SL9 9TQ is a postcode in Buckinghamshire.

A postcode has no figures of its own: each layer is published for whole councils, neighbourhoods or exact points. The figures below are for the whole of Buckinghamshire. Open the map at SL9 9TQ for neighbourhoods and points.

In: [Buckinghamshire](https://openindex.co.uk/buckinghamshire) › [SL9](https://openindex.co.uk/postcode/sl9) › [SL9 9](https://openindex.co.uk/postcode/sl9-9)

## Around this postcode

- **15 crimes within 500 m**: August, up 25% on July. Buckinghamshire 050A: 45 a year per 1,000 people. (Map point) https://openindex.co.uk/map/street-crime?around=-0.5512,51.6058,SL99TQ
- **Gerrards Cross, 1.9 km**: About 24 minutes on foot. (Exact point) https://openindex.co.uk/map/stations?around=-0.5512,51.6058,SL99TQ
- **1 school within 800 m**: Nearest is 630 m away. (Exact point) https://openindex.co.uk/map/schools?around=-0.5512,51.6058,SL99TQ
- **No property in SL9 9TQ listed at risk of flooding**: From rivers or the sea, with flood defences, in the Environment Agency's assessment. (Postcode) https://openindex.co.uk/map/flood-risk-by-postcode?around=-0.5512,51.6058,SL99TQ
- **England’s least deprived 20%**: This neighbourhood, Buckinghamshire 050A. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=-0.5512,51.6058,SL99TQ
- **£479,736 average price**: For the whole of Buckinghamshire, July 2026. (Council) https://openindex.co.uk/map/house-prices?around=-0.5512,51.6058,SL99TQ
- **3 GP practices within 1 km**: Nearest is 520 m away. (Postcode) https://openindex.co.uk/map/gp-practices?around=-0.5512,51.6058,SL99TQ
- **4 supermarkets within 1 km**: Nearest is 330 m away. (Exact point) https://openindex.co.uk/map/supermarkets?around=-0.5512,51.6058,SL99TQ
- **Gigabit broadband for every home and business at SL9 9TQ**: Superfast for 100%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=-0.5512,51.6058,SL99TQ
- **Low road and rail noise at SL9 9TQ**: Road 52 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=-0.5512,51.6058,SL99TQ
- **In a radon Affected Area, class 2 of 6**: 1% to 3% of homes in this 1 km square are estimated to be at or above the radon Action Level. (1 km grid) https://openindex.co.uk/map/radon?around=-0.5512,51.6058,SL99TQ
- **13.3 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=-0.5512,51.6058,SL99TQ

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [Chalfont St Peter CofE Academy](https://openindex.co.uk/school/chalfont-st-peter-cofe-academy-e136726) | Primary | 630 m (8 minutes on foot) | Some aspects not as strong, May 2025 | 78% met the expected standard at KS2 (2024/25) |
| [Robertswood School](https://openindex.co.uk/school/robertswood-school-e110360) | Primary | 840 m (11 minutes on foot) | Good (overall), November 2022 | 64% met the expected standard at KS2 (2024/25) |
| [Thorpe House School](https://openindex.co.uk/school/thorpe-house-school-e110555) | Independent | 1.3 km (16 minutes on foot) | Not in Ofsted's state-funded schools file | – |
| [St Joseph's Catholic Primary School](https://openindex.co.uk/school/st-josephs-catholic-primary-school-e148671) | Primary | 1.3 km (16 minutes on foot) | Improved significantly, May 2025 | 74% met the expected standard at KS2 (2024/25) |
| [Chalfont St Peter Infant School](https://openindex.co.uk/school/chalfont-st-peter-infant-school-e110269) | Primary | 1.3 km (16 minutes on foot) | Graded inspection, October 2024: no overall grade | – |
| [The Chalfonts Community College](https://openindex.co.uk/school/the-chalfonts-community-college-e137215) | Secondary | 1.4 km (17 minutes on foot) | Good (overall), November 2022 | Attainment 8 of 41.1 (2025/26, provisional) |
| [St Mary's School](https://openindex.co.uk/school/st-marys-school-e110544) | Independent | 1.4 km (17 minutes on foot) | Not in Ofsted's state-funded schools file | – |
| [Maltman's Green School](https://openindex.co.uk/school/maltmans-green-school-e110543) | Independent | 1.4 km (18 minutes on foot) | Not in Ofsted's state-funded schools file | – |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| January 2025 | £2,160,000 | Detached, established, freehold | 10 m |
| October 2025 | £560,000 | Detached, established, freehold | 60 m |
| August 2024 | £1,640,000 | Detached, established, freehold | 90 m |
| April 2026 | £1,545,000 | Detached, established, freehold | 120 m |
| July 2024 | £1,340,000 | Detached, established, freehold | 140 m |
| March 2025 | £1,115,000 | Detached, established, freehold | 180 m |
| November 2024 | £1,900,000 | Detached, established, freehold | 190 m |
| May 2025 | £1,250,000 | Detached, established, freehold | 230 m |

## Within 1 km

- GP practices: THE MISBOURNE SURGERY (520 m); THE ALLAN PRACTICE (690 m); THE HALL PRACTICE (710 m)
- Pharmacies: VANTAGE PHARMACY (360 m); RICHARD ADAMS PHARMACY (470 m)
- Dental practices: DENTAL SURGERY (280 m); MARKET HOUSE DENTAL SURGERY (600 m)
- Supermarkets: M&S Chalfont St Peter Foodhall (330 m, Marks and Spencer); Morrisons Daily Chalfont St Peter High St (330 m, Morrisons); Tesco Chalfont St Peter Express (460 m, Tesco); Tesco Chalfont St Peter Esso Express (930 m, Tesco)

## Key figures

- **Average house price: £479,736** (July 2026). Buckinghamshire’s average house price was £479,736 in July 2026 (HM Land Registry). Up 1.1% in a year. Source: UK House Price Index, July 2026. Published 16 September 2026.
- **Median full-time pay: £43,290** (2025). Full-time workers living in Buckinghamshire earned a median of £43,290 in 2025 (ONS earnings survey). 81st highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 11.1×** (2025). A home in Buckinghamshire costs 11.1 times local full-time pay. Joint 31st least affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 16 September 2026.
- **Deprivation score: 11.9** (2025). Buckinghamshire has a deprivation score of 11.9 in the English Indices of Deprivation 2025 (MHCLG). 47th least deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Buckinghamshire 050A (Neighbourhood)

- **Deprivation score: 5.5** (2025). Buckinghamshire 050A has a deprivation score of 5.5 in the English Indices of Deprivation 2025 (MHCLG). Joint 3,362nd least deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £957,500** (2025). The median price paid for a home in Buckinghamshire 050A was £957,500 in 2025. 516th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 1,533** (2021). Buckinghamshire 050A had 1,533 usual residents at the census (ONS Census 2021). Joint 21,727th most populated of 46,844. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026.
- **Gigabit broadband coverage: 94.1%** (January 2026). In Buckinghamshire 050A, 94.1% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026.

## SL9 (Postcode district)

- **Median sale price: £867,500** (2025). The median price paid for a home in SL9 was £867,500 in 2025. 33rd most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 22,256** (2021). SL9 had 22,256 usual residents at the census (ONS Census 2021). 1,326th most populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026.
- **People in radon Affected Area squares: 95%** (2022). About 95% of people in SL9 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022.
- **Gigabit broadband coverage: 92.1%** (January 2026). In SL9, 92.1% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026.

## About

- Type: Postcode
- Council: [Buckinghamshire](https://openindex.co.uk/buckinghamshire)
- Centre: 51.6058, -0.5512

Council: [Buckinghamshire](https://openindex.co.uk/buckinghamshire) (Unitary authority, 100%).

## Your MP

- [Chesham and Amersham](https://openindex.co.uk/constituency/chesham-and-amersham): Sarah Green (Liberal Democrat), MP since July 2024.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Sources

- [Street-level crime](https://openindex.co.uk/sources/street-crime), August 2026 (Map point)
- [Rail and Tube stations](https://openindex.co.uk/sources/stations), 2024/25 (Exact point)
- [Schools](https://openindex.co.uk/sources/schools) (Exact point)
- [Flood risk by postcode](https://openindex.co.uk/sources/flood-risk-by-postcode), June 2026 (Postcode)
- [English Indices of Deprivation 2025](https://openindex.co.uk/sources/deprivation-england), 2025 (Neighbourhood)
- [Average house price](https://openindex.co.uk/sources/house-prices), July 2026 (Council)
- [GP practices](https://openindex.co.uk/sources/gp-practices) (Postcode)
- [Supermarkets](https://openindex.co.uk/sources/supermarkets) (Exact point)
- [Broadband by postcode](https://openindex.co.uk/sources/broadband-by-postcode), January 2026 (Postcode)
- [Road and rail noise by postcode](https://openindex.co.uk/sources/noise-by-postcode), 2021 (Postcode)
- [Radon potential](https://openindex.co.uk/sources/radon) (1 km grid)
- [Nitrogen dioxide (NO2)](https://openindex.co.uk/sources/nitrogen-dioxide), 2025 (1 km grid)

On the map: https://openindex.co.uk/map/sold-prices?around=-0.5512,51.6058,SL99TQ

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sl9-9tq.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.8, https://doi.org/10.5281/zenodo.23508850. The HTML page: https://openindex.co.uk/postcode/sl9-9tq