# UB9

Postcode district covering Harefield and Denham Green, in Buckinghamshire and Hillingdon.

UB9 is a postcode district covering Harefield and Denham Green, in Buckinghamshire and Hillingdon. Median sale price £487,550 in 2025.

Postcode district. Code UB9. In: [Postcodes](https://openindex.co.uk/postcode) › [UB](https://openindex.co.uk/postcode/ub)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an UB9 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £487,550** (2025). The median price paid for a home in UB9 was £487,550 in 2025. 312th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/ub9#f-house-sales-median-price
- **Population: 15,660** (2021). UB9 had 15,660 usual residents at the census (ONS Census 2021). 1,044th least 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. https://openindex.co.uk/postcode/ub9#f-population
- **People in radon Affected Area squares: 93%** (2022). About 93% of people in UB9 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. https://openindex.co.uk/postcode/ub9#f-radon-affected-share
- **Gigabit broadband coverage: 79.3%** (January 2026). In UB9, 79.3% 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. https://openindex.co.uk/postcode/ub9#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=UB9) (Worked out by Open Index · 2022): About 93% of people in UB9 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=UB9) (Worked out by Open Index · 2025): 190 homes were sold in UB9 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=UB9) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for UB9.
- [Population by postcode district](https://openindex.co.uk/map/population?place=UB9) (Census 2021, England and Wales): UB9 had 15,660 usual residents at the census.

## How UB9 compares

Each postcode district against every other postcode district the measure covers.

| Measure | UB9 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £487,550 | 4th most expensive | 10 postcode districts, UB · 2025 |
| Population | 15,660 | 2nd least populated | 11 postcode districts, UB · 2021 |
| People in radon Affected Area squares | 93% | most people in radon Affected Areas | 11 postcode districts, UB · 2022 |
| Gigabit broadband coverage | 79.3% | lowest | 11 postcode districts, UB · Jan 2026 |

## Is UB9 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in UB9 at a rate of 82.5 per 1,000 people.
That compares with 115.2 per 1,000 people across the UB postcode area.
In August 2026 alone, 102 cases of crime and anti-social behaviour were recorded in UB9.
In the 12 months to August 2026, the most common types were violence and sexual offences (392), anti-social behaviour (268) and other crime (222).
A year earlier, the recorded crime rate in UB9 was 81.5 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

## Deprivation in UB9, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so UB9 has no single figure. Of its 9 neighbourhoods with a rank:
- Decile 3: 2 neighbourhoods
- Decile 4: 1 neighbourhood
- Decile 5: 3 neighbourhoods
- Decile 6: 1 neighbourhood
- Decile 8: 2 neighbourhoods

Source: English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

## Neighbourhoods in UB9

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Buckinghamshire 059A](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017810) | 2,317 | 81.5 per 1,000 | 5 | 66.8% |
| [Buckinghamshire 059B](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017811) | 1,227 | 62.3 per 1,000 | 8 | 89.2% |
| [Buckinghamshire 059C](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017812) | 1,917 | 91.2 per 1,000 | 5 | 79.2% |
| [Buckinghamshire 059D](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017813) | 2,014 | 112.7 per 1,000 | 8 | 86.3% |
| [Hillingdon 003A](https://openindex.co.uk/hillingdon/neighbourhood/e01002438) | 1,441 | 54.2 per 1,000 | 6 | 75.7% |
| [Hillingdon 003B](https://openindex.co.uk/hillingdon/neighbourhood/e01002439) | 1,549 | 84.7 per 1,000 | 5 | 79.2% |
| [Hillingdon 003C](https://openindex.co.uk/hillingdon/neighbourhood/e01002440) | 1,584 | 59.1 per 1,000 | 4 | 93.6% |
| [Hillingdon 003D](https://openindex.co.uk/hillingdon/neighbourhood/e01002441) | 1,601 | 125.2 per 1,000 | 3 | 58.8% |
| [Hillingdon 003E](https://openindex.co.uk/hillingdon/neighbourhood/e01002442) | 1,625 | 60.3 per 1,000 | 3 | 95.1% |

## Your MP

- [Beaconsfield](https://openindex.co.uk/constituency/beaconsfield): Joy Morrissey (Conservative), MP since July 2024. 52% of the people here.
- [Ruislip, Northwood and Pinner](https://openindex.co.uk/constituency/ruislip-northwood-and-pinner): David Simmonds (Conservative), MP since July 2024. 36% of the people here.
- [Uxbridge and South Ruislip](https://openindex.co.uk/constituency/uxbridge-and-south-ruislip): Danny Beales (Labour), MP since July 2024. 11% of the people here.
- [Chesham and Amersham](https://openindex.co.uk/constituency/chesham-and-amersham): Sarah Green (Liberal Democrat), MP since July 2024. 0.2% of the people here.
- [South West Hertfordshire](https://openindex.co.uk/constituency/south-west-hertfordshire): Mr Gagan Mohindra (Conservative), MP since July 2024. 0.2% of the people here.

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

## Middle areas in UB9

[Denham](https://openindex.co.uk/buckinghamshire/denham), [Harefield](https://openindex.co.uk/hillingdon/harefield)

## Postcode sectors in UB9

[UB9 4 (76 postcodes)](https://openindex.co.uk/postcode/ub9-4), [UB9 5 (153 postcodes)](https://openindex.co.uk/postcode/ub9-5), [UB9 6 (202 postcodes)](https://openindex.co.uk/postcode/ub9-6)

## Councils UB9 covers

[Buckinghamshire](https://openindex.co.uk/buckinghamshire), [Hillingdon](https://openindex.co.uk/hillingdon)

## Towns in UB9

[Hillingdon](https://openindex.co.uk/hillingdon)

## Postcode districts next to UB9

[HA4](https://openindex.co.uk/postcode/ha4), [HA6](https://openindex.co.uk/postcode/ha6), [SL0](https://openindex.co.uk/postcode/sl0), [SL3](https://openindex.co.uk/postcode/sl3), [SL9](https://openindex.co.uk/postcode/sl9), [UB8](https://openindex.co.uk/postcode/ub8), [UB10](https://openindex.co.uk/postcode/ub10), [WD3](https://openindex.co.uk/postcode/wd3)

## Nearest rail stations

[Denham (1.6 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.4974,51.5788), [Denham Golf Club (2.6 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.5178,51.5806), [West Ruislip (3.9 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.4379,51.5697), [West Ruislip (3.9 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.4378,51.5698)

## More in the UB postcode area

[All UB postcode districts](https://openindex.co.uk/postcode/ub), [Every UK postcode area](https://openindex.co.uk/postcode)

## UB9 in brief

UB9 is a postcode district covering Harefield and Denham Green, in Buckinghamshire and Hillingdon.
About 15,809 people lived in UB9 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £487,550 in 2025 across 190 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 82.5 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in UB9 was £487,550 in 2025.
UB9 had 15,660 usual residents at the census.
About 93% of people in UB9 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In UB9, 79.3% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: UB9
- Postcode area: [UB](https://openindex.co.uk/postcode/ub)
- Constituency: [Beaconsfield †](https://openindex.co.uk/constituency/beaconsfield)
- Council: [Buckinghamshire †](https://openindex.co.uk/buckinghamshire)
- Area: 30.88 km²
- People, mid-2024: 15,809*
- Neighbourhoods: 9
- Output areas: 49

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[WD3](https://openindex.co.uk/postcode/wd3), [SL9](https://openindex.co.uk/postcode/sl9), [UB10](https://openindex.co.uk/postcode/ub10), [SL0](https://openindex.co.uk/postcode/sl0), [HA6](https://openindex.co.uk/postcode/ha6), [HA4](https://openindex.co.uk/postcode/ha4)

## Latest updates for UB9

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/UB9

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/ub9, or to one figure with its anchor, https://openindex.co.uk/postcode/ub9#f-house-sales-median-price.

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 2026.10.9. The HTML page: https://openindex.co.uk/postcode/ub9