Date |
Legislation |
Effect
|
20 October 1844 |
Counties (Detached Parts) Act 1844
|
|
25 March 1883 |
Divided Parishes and Poor Law Amendment Act 1882, Local Government Board Order 19622
|
|
25 March 1885 |
Local Government Board Order 16585
|
|
24 March 1888 |
Local Government Board Order 21701
|
- Part of Edlesborough transferred from Buckinghamshire
|
1 April 1889 |
Local Government Act 1888
|
|
30 September 1895 |
Local Government Board Order P 1170
|
|
30 September 1896 |
Local Government Board Order P 1173
|
- The part of the parish of Royston in Cambridgeshire transferred from Cambridgeshire to become North Royston parish1
- Part of Bassingbourn parish transferred from Cambridgeshire to become South Bassingbourn parish1
- Part of Kneesworth parish transferred from Cambridgeshire to become South Kneesworth parish1
- Part of Melbourn parish transferred from Cambridgeshire to become South Melbourn parish1
|
31 September 1896 |
Local Government Board Provisional Orders Confirmation (No. 13) Act 1896
|
|
30 September 1897
|
Local Government Board Order P 1312 |
|
Local Government Board Order P 1313 |
- Part of Shillington parish transferred from Bedfordshire to Hertfordshire
|
1 October 1900
|
Local Government Board Order 41337
|
|
1 April 1907
|
Counties of Bedford and Hertford (Alteration of County Boundaries) Order 1906
|
- Parts of parishes of Caddington, Hyde and Studham transferred from Bedfordshire
- Parts of parishes of Flamstead, Harpenden Rural and Markyate transferred to Bedfordshire
|
Counties of Buckingham and Hertford (Alteration of County Boundaries) Order 1906
|
|
1 October 1926 |
Ministry of Health Provisional Orders Confirmation (No. 10) Act 1926
|
|
18 September 1934 |
Ministry of Health Declaration under section 145 of the Local Government Act 1933 (Alteration of Watercourses)
|
- Realignment of boundary with Essex due to alteration of watercourses.
|
1 April 1935 |
The County of Hertford Review Order (Ministry of Health Order No. 80168) The County of Essex Review Order (Ministry of Health Order No. 83994)
|
|
28 September 1947 |
Ministry of Health Declaration
|
- Part of Arlesey transferred from Bedfordshire
|
13 August 1956 |
Ministry of Health Declaration
|
- Part of Arlesey transferred from Bedfordshire
|
1 April 1965 |
London Government Act 1963[3]
|
|
1 April 1989 |
The Cambridgeshire, Essex, Hertfordshire and Lincolnshire (County Boundaries) Order 1989[4]
|
|
1 April 1993 |
The Greater London and Hertfordshire (County Boundaries) Order 1992[5]
|
- Southern part of Elstree village from Barnet/Harrow to the Elstree and Borehamwood parish in Hertfordshire
- Some streets on the edge of Barnet town gained by Barnet from unparished area of Hertsmere, Hertfordshire
|
1 April 1993 |
The Essex and Hertfordshire (County Boundaries) Order 1992[6]
|
- Changes to Essex/Hertfordshire boundary
|
1 April 1994 |
The Essex, Greater London and Hertfordshire (County and London Borough Boundaries) Order 1993[7]
|
- Changes to the Greater London/Hertfordshire boundary: some alignment to the M25 motorway
|