| RHP2734 | Plan and elevations of deep-water pier at Stromness Harbour, Orkney | 1877 |
| RHP2882 | Plan of the crown lands in Innertown comprising Innertown, Links, and Croval | 1849 |
| RHP2883/1 | Plan of Nether Mousland, Stromness, Orkney | 1849 |
| RHP2883/2 | Plan of Nether Mousland, Stromness, Orkney | 1849 |
| RHP3830 | Plan of the house in Stromness bought by the deceased David Sutherland and adjoining waste ground: 1765. | 1765 |
| RHP3831 | Plan of property in Stromness, Orkney | [1792] |
| RHP3832 | Plan of Chalmers Quoy in Stromness, Orkney | 1792 |
| RHP5219 | Bound plan and sections of works at Stromness Harbour. | 1896 |
| RHP5468 | Bound plans and sections of proposed works at Stromness harbour. | 1954 |
| RHP6271 | Photostat copy of plan of part of the town of Stromness | [19th century] |
| RHP6272 | Photostat copy of plan of property in the public street of Stromness | [19th century] |
| RHP13233 | Plan of Stromness Pier: 1891. | 1891 |
| RHP34162 | Admiralty chart of Hoy Sound. | 1905 |
| RHP79576 | Ordnance Survey 6 inch plan (Orkney, sheet CVI) coloured and marked to show types of farming and farm boundaries: [1944 x 1954] | nd |
| RHP97642 | Ordnance Survey 6 inch plan (Orkney, sheet C) marked to show classification of land | [1944-1954] |
| RHP97647 | Ordnance Survey 6 inch plan (Orkney, sheet CVI) coloured and marked to show classification of land | [1944-1954] |
| RHP97648 | Ordnance Survey 6 inch plan (Orkney, sheet CVI) marked to show classification of land | [1944-1954] |