Colnbrook

Colnbrook is covered by postcode district SL3. It is mostly in the Slough council area: 61 of its 62 postcodes. The other is in Windsor and Maidenhead.

Every postcode in Colnbrook, by gigabit broadband

Map of every postcode in Colnbrook, by gigabit broadband Of the 62 postcodes in Colnbrook that ONS places, 21 have no home or business that can get gigabit, 15 have some that can, 25 can all get it and 1 have no Ofcom figure. One group of postcodes without gigabit is outlined: 16 postcodes without gigabit. Places named: Colnbrook. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SL3 0FN: no Ofcom figureSL3 0HA: gigabit for allSL3 0JE: gigabit for allSL3 0JF: gigabit for allSL3 0JG: gigabit for allSL3 0JX: gigabit for allSL3 0LA: gigabit for allSL3 0LB: gigabit for allSL3 0LD: gigabit for allSL3 0LE: gigabit for allSL3 0LG: gigabit for allSL3 0LH: gigabit for allSL3 0LL: gigabit for allSL3 0LP: gigabit for allSL3 0LQ: gigabit for allSL3 0LR: gigabit for allSL3 0LW: gigabit for allSL3 0NA: gigabit for allSL3 0NB: gigabit for allSL3 0ND: gigabit for allSL3 0NF: gigabit for allSL3 0NL: gigabit for allSL3 0RE: gigabit for allSL3 0RH: gigabit for allSL3 0RJ: gigabit for allSL3 0RL: gigabit for allSL3 0HR: some gigabitSL3 0HS: some gigabitSL3 0JH: some gigabitSL3 0JJ: some gigabitSL3 0JQ: some gigabitSL3 0JT: some gigabitSL3 0JU: some gigabitSL3 0JZ: some gigabitSL3 0LF: some gigabitSL3 0LN: some gigabitSL3 0LX: some gigabitSL3 0RA: some gigabitSL3 0RB: some gigabitSL3 0RD: some gigabitSL3 0RF: some gigabitSL3 0AW: no gigabitSL3 0EA: no gigabitSL3 0HD: no gigabitSL3 0HT: no gigabitSL3 0HU: no gigabitSL3 0JL: no gigabitSL3 0JN: no gigabitSL3 0JP: no gigabitSL3 0JR: no gigabitSL3 0JW: no gigabitSL3 0JY: no gigabitSL3 0LU: no gigabitSL3 0LY: no gigabitSL3 0LZ: no gigabitSL3 0NG: no gigabitSL3 0NP: no gigabitSL3 0QL: no gigabitSL3 0QY: no gigabitSL3 0RG: no gigabitSL3 0XA: no gigabitSL3 9NT: no gigabit Colnbrook 16 postcodes without gigabit, outlined: this goes to SL3 0JY, the one nearest the middle of them16 postcodes without gigabit Map of every postcode in Colnbrook, by gigabit broadband Of the 62 postcodes in Colnbrook that ONS places, 21 have no home or business that can get gigabit, 15 have some that can, 25 can all get it and 1 have no Ofcom figure. One group of postcodes without gigabit is outlined: 16 postcodes without gigabit. Places named: Colnbrook. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Colnbrook
  • No home or business can get gigabit: 21
  • Some can get gigabit: 15
  • Every home and business can get gigabit: 25
  • Ofcom gives no figure: 1
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 62 postcodes in Colnbrook that ONS places, 21 have no home or business that can get gigabit, 15 have some that can, 25 can all get it and 1 have no Ofcom figure.

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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn.

The middle of its postcodes: latitude 51.4838, longitude -0.5244. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Postcodes without gigabit

21 postcodes here have no gigabit. These are the 12 first in postcode order.

Where the postcodes without gigabit lie together

What is it like to live in Colnbrook?

Homes sold for a typical £380,000 in the 12 months to September 2026. At 25 of the 61 postcodes Ofcom reports on, every home and business can get gigabit broadband. The Environment Agency counts 63 homes and businesses at high or medium risk of flooding from rivers or the sea, at 22 of its 62 postcodes. It has 1 primary school at its postcodes. The nearest GP practice is Langley Health Centre, 1.7 km from the middle. The nearest railway station is Heathrow Terminal 5, 2.8 km from the middle of its postcodes in a straight line.

We don't rate places; here are the figures so you can judge.

Sources: HM Land Registry Price Paid Data; Ofcom Connected Nations; Environment Agency flood risk; Get Information about Schools; NHS GP practices; NaPTAN. Each figure is from a section of this page, which gives its date.

What do homes cost in Colnbrook?

Homes in Colnbrook sold for a typical £380,000 in the 12 months to September 2026, across 10 sales, HM Land Registry's figures show. The 12 months before gave £257,250 from 16 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£380,000 typical price, the 12 months to September 2026
£257,250 12 months to September 2025
  • Semi-detached 2 sales, too few to price
  • Terraced £400,000 5 sales
  • Flat or maisonette 3 sales, too few to price

Across the whole SL3 district, Colnbrook's main postcode district: a typical £475,000.

Sales at the postcodes ONS places in Colnbrook: 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 October 2026.

Are new homes being built in Colnbrook?

1 of the 62 postcodes now in use in Colnbrook came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 0 of the 16 homes sold in Colnbrook were newly built (0%), HM Land Registry's records show; across the SL3 district, 0%.

The newest postcodes

A new postcode is often a new street or estate, but Royal Mail also makes new postcodes when it reorganises old ones, so not every one means new homes. Only postcodes still in use are counted.

New homes among the homes sold

PeriodIn ColnbrookAcross the SL3 district
The 12 months to September 2026 0 of 10 (0%) 0 of 284 (0%)
The 12 months to September 2025 0 of 16 (0%) 0 of 392 (0%)

Standard sales of homes at market value that HM Land Registry marks as newly built. New homes take longer to be registered than other sales, so the latest 12 months count fewer of them than were sold. A share is given from 5 sales or more.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; HM Land Registry Price Paid Data, files dated 28 October 2026.

What broadband can you get in Colnbrook?

Ofcom reports on 61 of the 62 postcodes in Colnbrook. At 25 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit25 of 61
Postcodes where every home can get superfast56 of 61

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, Connected Nations, Spring 2026, data for January 2026.

Is Colnbrook at risk of flooding?

22 of the 62 postcodes in Colnbrook have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 63 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 22 of 62 postcodes High: 53Medium: 10Low: 61Very low: 92

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

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 flood risk, published 6 July 2026.

Which schools are in Colnbrook?

The primary schools are at the postcodes in Colnbrook. There is no secondary school at its postcodes; these are the nearest to its middle. Distances are straight lines from the middle of its postcodes. Distance is not a catchment: each council sets its own admission rules. Special schools and alternative provision, which children join by referral, are not listed.

An orange bar: the school has as many pupils as places, or more (Department for Education's figures).

Find and compare schools in England, on GOV.UK

Source: Get Information about Schools, read 17 October 2026. Each school opens its own record there.

How far is the station from Colnbrook?

The nearest railway station to the centre point of the postcodes in Colnbrook is Heathrow Terminal 5 Rail Station, 2.8 km away in a straight line.

  • Heathrow Terminal 5 Rail Station Railway station 2.8 kmCycle
  • Sunnymeads Rail Station Railway station 2.8 kmCycle
  • Langley (Berks) Rail Station Railway station 3.0 kmCycle
  • Heathrow Terminal 5 Underground Station Underground, metro or tram 2.8 kmCycle

Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.

Straight-line distances from the middle of the postcodes, not routes. Each postcode page lists its own nearest stations and bus stops. The Department for Transport's register does not say how often services run.

Source: NaPTAN, read 17 October 2026.

Which GP surgeries are in Colnbrook?

There is no GP practice at the postcodes in Colnbrook. These are the nearest to its middle, in a straight line. Each practice sets the area it takes patients from, so check with it before registering.

Find a GP on the NHS website

Sources: NHS GP practices, read 17 October 2026; Care Quality Commission, ratings of 1 October 2026.

Is Colnbrook safe? Crime recorded around it

Police.uk records 830 crimes and reports of anti-social behaviour within a mile of the middle of the postcodes in Colnbrook over the 12 months from September 2025 to August 2026. August 2026 is the latest month it has published. These are counts, not a rate: we hold no count of the people who live, work or pass through, so we do not say whether a place is safe.

Each month, September 2025 to August 2026

  1. 80 September 2025
  2. 67 October 2025
  3. 65 November 2025
  4. 53 December 2025
  5. 56 January 2026
  6. 61 February 2026
  7. 75 March 2026
  8. 54 April 2026
  9. 70 May 2026
  10. 83 June 2026
  11. 91 July 2026
  12. 75 August 2026

By kind, over the 12 months

Violence and sexual offences323 reports
Criminal damage and arson91 reports
Vehicle crime84 reports
Anti-social behaviour82 reports
Other theft74 reports
Public order66 reports
Burglary23 reports
Drugs22 reports

Also: shoplifting 21, other crime 16, robbery 9, bicycle theft 8, possession of weapons 6, theft from the person 5.

Police.uk says its locations "always represent the approximate location of a crime". Each crime is moved to the nearest of a fixed list of map points, each over a street centre, a public place or a commercial premises, chosen so that every point covers at least eight addresses or none. A mile is a wide circle: in a town it takes in the centre and its shops, where much crime is recorded.

Crime around one postcode

Source: police.uk, data to August 2026, from its download of 30 September 2026.

Who runs Colnbrook?

Councils
Slough (61) and Windsor and Maidenhead (1)
Parliamentary constituency
Windsor
Police force area
Thames Valley
Region
South East
Country
England
MP
Jack Rankin (Conservative)

Where the place crosses a boundary, a row lists each side with its number of postcodes. Check a postcode for its own. What council am I in?

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; UK Parliament, read 14 October 2026.

Moving to Colnbrook

Who to tell and what to sort out in your first week. Most of Colnbrook is in Slough; near its edge, check which council a postcode is in.

Colnbrook postcodes

62 postcodes in use in Colnbrook, by district:

That district is in the SL postcode area.

Check a Colnbrook postcode

Enter a full postcode to see its ward, its flood risk, house prices in its sector and its nearest schools.

Do not know the postcode? What is my postcode?

Places near Colnbrook

With the typical price of a home in each, to set beside Colnbrook's £380,000. Distances are straight lines between the middles of each place's postcodes.

Quick answers about Colnbrook

What is the postcode for Colnbrook?
Postcode district SL3, with 62 postcodes in use. Source: ONS.
Who is the MP for Colnbrook?
Jack Rankin (Conservative), for Windsor. Source: UK Parliament and ONS.
How much are houses in Colnbrook?
A typical £380,000 in the 12 months to September 2026, from 10 sales. Source: HM Land Registry.
What schools are in Colnbrook?
Primary schools at its postcodes include Colnbrook Church of England Primary School; the nearest secondary school to the middle of its postcodes is Langley Grammar School, 2.6 km away. Source: Department for Education.
Does Colnbrook have a railway station?
The nearest is Heathrow Terminal 5 station, 2.8 km from the middle of its postcodes in a straight line. Source: Department for Transport.
What broadband can you get in Colnbrook?
Ofcom reports on 61 of the 62 postcodes in Colnbrook. At 25 of them every home and business can get gigabit broadband. Source: Ofcom.
Is Colnbrook at risk of flooding?
22 of the 62 postcodes in Colnbrook have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 63 homes and businesses in an area at high or medium risk. River and sea risk for the land, not surface water. Source: Environment Agency.
Are new homes being built in Colnbrook?
1 of the 62 postcodes now in use in Colnbrook came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 0 of the 16 homes sold in Colnbrook were newly built (0%), HM Land Registry's records show; across the SL3 district, 0%. Source: ONS and HM Land Registry.

Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. This uses Care Quality Commission information. Contains Parliamentary information licensed under the Open Parliament Licence v3.0.

Licences: Open Government Licence v3.0; Open Parliament Licence v3.0.

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