Harmondsworth, West Drayton, Middlesex

Colnbrook Residential Short-Term Holding Facility (STHF)

United Kingdom

Status

In use

2023

Type: Immigration detention centre (Administrative)

Custodial Authority: UK Visas and Immigration

Management: Serco Ltd. (Private For-Profit)

Detains: Adult men, Adult women, Asylum seekers (administrative), Undocumented migrants (administrative)

Capacity Reported population Deaths at facility
18
8

31 December 2023

Yes

6 December 2016

United Kingdom

23,970

Migration Detainees

15,864

Migration Detainee Entries

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FACILITY NAMES
Colnbrook Residential Short-Term Holding Facility (STHF)
Location

Country: United Kingdom

City & Region: Harmondsworth, West Drayton, Middlesex, Europe

Latitude, Longitude: 51.4826657425, -0.482711792

Contact Information

Address: Colnbrook STHF Colnbrook Bypass Harmondsworth West Drayton Middlesex UB7 0FX UK


MANAGEMENT & BUDGET

Center Status
Status
Year
In use
2023
Last documented use
2016
In use
2013
Facility type
Category
Type
Year
Administrative
Immigration detention centre
2011
National typology
Official Typology
Year
Short-Term Holding Facility
2015
Management
Management
Type
Year
Serco Ltd.
Private For-Profit
2011
Custodial Authorities
Agency
Ministry
Ministry type
Year
UK Visas and Immigration
Home Office
Interior or Home Affairs
2011
Operating Period
Year of entry
Year ceased
2004

DETAINEES

Demographics

Adult men

2010

Adult women

2010
Categories of detainees

Asylum seekers (administrative)

2011

Undocumented migrants (administrative)

2011
Countries of Origin

Country #1 Brazil

Country #2 India

Country #3 Bulgaria

Country #4 Malaysia

Country #5 Pakistan

2023

SIZE & POPULATION

Capacity (specialised migration-related facility)

Type Standard capacity

Capacity 18

2024

Type Standard capacity

Capacity 8

2023

Type Standard capacity

Capacity 80

2009
Migration Detainee Entries

Number 620

2023
Reported Single-Day Migration Detainee Population at Facility (day)
Number
Date
8
31 December 2023
3
30 September 2023
14
31 December 2022
2
30 September 2022
6
31 December 2021
6
31 December 2020
2
31 December 2019
1
31 December 2018
9
31 December 2017
11
31 December 2016
8
31 December 2015
2
31 December 2014
6
31 December 2013
65
31 December 2012
Number of women detained on single day
Number
Date
14
30 September 2022
3
31 December 2022

LENGTH OF DETENTION

Detention Timeframe (long, medium, short)

Length Medium-term (4-20 days)

2011
Maximum Legal Length of Detention (days)
Days
Year
7
2023

OUTCOMES

CONDITIONS

CARCERAL INDICATORS

External Security Regime

Secure

2011

STAFF

SEGREGATION

Gender Segregation

Yes

2011

CELLS

COMMUNAL SPACE & ACTIVITIES

HEALTH

Reports of Deaths
Name of deceased individual
Date of death
N.A.
6 December 2016

MONITORING & ACCESS

TELECOMMUNICATIONS