HP9 postcode district: Beaconsfield and around, Buckinghamshire

HP9 is a postcode district in England, with 554 postcodes in use in 3 sectors. It has postcodes in Beaconsfield, Seer Green and Chalfont St Giles. Its council is Buckinghamshire.

Postcodes in use: 554
Sectors: 3
Council: Buckinghamshire
Places: 3 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in HP9, and which are new since 2020

New since 2020: 28
In use before 2020: 526
Outline: where 5 or more new postcodes since 2020 lie together

Of the 554 postcodes in HP9 that ONS places, 28 are new since 2020 and 526 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 180 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.6101, longitude -0.6402. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 5 newest postcodes

HP9 2RJMay 2026 HP9 2LPApril 2026 HP9 2YFMarch 2026 HP9 9FAJanuary 2026 HP9 9FBJanuary 2026

Where the new postcodes lie together

11 new postcodes since 2020, outlined on the map. HP9 2BL, is the newest of them.
10 new postcodes since 2020, outlined on the map. HP9 2YF, is the newest of them.

What broadband can you get in HP9?

Ofcom reports on 535 of the 554 postcodes in HP9. At 335 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit335 of 535

Postcodes where every home can get superfast492 of 535

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is HP9 at risk of flooding?

None of the 554 postcodes in HP9 is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in HP9?

Homes in HP9 sold for a typical £889,750 in the 12 months to August 2026, across 168 sales, down 9.9% on the 12 months before, HM Land Registry's figures show.

£889,750 typical price, the 12 months to August 2026

£987,500 12 months to August 2025

▼ down 9.9% on the 12 months before

Detached £1,300,000 75 sales
Semi-detached £730,000 39 sales
Terraced £725,000 19 sales
Flat or maisonette £390,000 35 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it