2-6, Castlereagh Road AKA former Co-operative building, Seaham - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Durham County Council, The District of Easington Council | 2006 | Seaham Conservation Area Appraisal | pages 15, 17, 29 & 32; Image page 22 |
| 2 | Ordnance Survey | 1894 to 1899 | Second Edition Ordnance Survey Map | |
| 3 | Local Heritage List, Seaham, January 2024 |