Former Police Station renamed Marquess Point (Seaham) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Department of Environment, English Heritage, Historic Buildings and Monuments Commission | 1950 | List of buildings of special architectural or historic interest, also known as "Greenbacks" | LB Volume, Map & Item: 488, 4, 34 |
| 2 | Unknown | 2003 | Londonderry House, North Terrace, Seaham | |
| 3 | John Potts Limited | 2003 | Hellens Developments, Seaham Police Station (Former Londonderry Offices) Supporting Statement and Heritage Impact Assessment | |
| 4 | 1974 | Police Station (former offices of Londonderry Estates) | ||
| 5 | Durham County Council | Marquess Point | ||
| 6 | Durham County Council | 29-Apr-2016 | 3 photographs of Former Police Station renamed Marquess Point |