Garden Walls, Spring Grove, Newgate (Barnard Castle) - 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: 770-1, 6, 146 |
| 2 | Durham County Council | Garden Walls, Spring Grove, Newgate | ||
| 3 | Durham County Council | Garden Walls, Spring Grove, Newgate | ||
| 4 | Durham County Council | Garden Walls, Spring Grove, Newgate |