Plot 340 is part of the following land areas:
| Tuesday 28 January 1550 | Colne Priory Rental | 43401168 |
| 1598 | Terrier to accompany Map of Earls Colne and Colne Priory Manors | 44600199 44600554 |
| September 1598 | Colne Priory Rental | 43501198 |
| Monday 10 January 1614 | Harlakenden Account Book | 22902203 |
| Wednesday 19 May 1619 | Colne Priory Manor Court Rolls | 33601664 33601752 |
| Friday 6 January 1654 | Colne Priory Manor Court Rolls | 34900924 |
| Wednesday 4 November 1657 | Colne Priory Manor Court Rolls | 35000888 35001080 |
| Tuesday 19 March 1678 | Earls Colne and Colne Priory rental | 22503234 |
| Tuesday 8 April 1701 | Colne Priory Manor: Index of Admissions | 35902270 |
| Friday 30 March 1733 | Colne Priory Manor Court Rolls | 36600513 |
| Thursday 3 February 1743 | Maps | 90100010 90100020 |
| Sunday 20 January 1745 | Colne Priory Manor Court Rolls | 37100795 |
| 1806 | Maps | 90200005 |
| 1838 | Earls Colne Tithe Award | 90000015 |
| 1854 | Rental of the Manors of Earls Colne and Colne Priory | 80000750 |