| RHP10000/SD1 | Plan of the whole coal and other minerals under lands of Clyneleish, Clynekirkton, and others | 1938 |
| RHP10000/SD2 | Plan of the whole coal and other minerals under lands of Clynelish, Clynekirkton, Brora, and others | 1938 |
| RHP11604 | Plan continuing the intended Portenleik road from eastward of Dunrobin to Dunbeath. | 1794 |
| RHP11693 | Plan of intended road from Golspie to Dunbeath. | Late 18th century |
| RHP13253 | Plan of Brora Harbour: 1891. | 1891 |
| RHP15450 | Architectural plan and elevation of station buildings at Brora (Highland Railway): 1895 | 1895 |
| RHP17437 | Plan of Brora Station showing land let to Mr. John Ross (Highland Railway). | 1911 |
| RHP33156 | Plans of connecting railway from Brora Colliery and Brick Works to main line in Brora town: 1947 or post | 1947 |
| RHP33157 | Plans of connecting railway from Brora Colliery and Brick Works to main line in Brora town: 1947 or post | 1947 |
| RHP33158 | Plan of Brora Colliery and Brick Works: 1947 or post | 1947 |
| RHP33159 | Plan of area surrounding Brora Colliery and Brick Works and Clynelish Distillery | [1947] |
| RHP33160 | Plan of Brora Colliery and Brick Works: 1947 or post | 1947 |
| RHP34061 | Plan of Brora colliery, showing limit of coal operations and proposed ten-year development programme | 1954 |
| RHP38300 | Ordnance Survey 1/25000 plan | nd |
| RHP38303 | Ordnance Survey 1 inch map marked to show area of proposed afforestation survey. | nd |
| RHP79407 | Ordnance Survey 6 inch plan (Sutherland, sheet LXIV) marked to show farm boundaries | [1944-1955] |
| RHP79408 | Ordnance Survey 6 inch plan (Sutherland, sheet LXV) marked to show farm boundaries | [1944-1955] |
| RHP79409 | Ordnance Survey 6 inch plan (Sutherland, sheet LXVI) marked to show farm boundaries | [1944-1955] |
| RHP79416 | Ordnance Survey 6 inch plan (Sutherland, sheet LXXV) marked to show farm boundaries | [1944-1955] |
| RHP79417 | Ordnance Survey 6 inch plan (Sutherland, sheet LXXVI) marked to show farm boundaries | [1944-1955] |
| RHP79418 | Ordnance Survey 6 inch plan (Sutherland, sheet LXXVII) marked to show farm boundaries | [1944-1955] |
| RHP79423 | Ordnance Survey 6 inch plan (Sutherland, sheet LXXXVII) marked to show farm boundaries | [1944-1955] |
| RHP79424 | Ordnance Survey 6 inch plan (Sutherland, sheet LXXXVIII) marked to show farm boundaries | [1944-1955] |
| RHP79433 | Ordnance Survey 6 inch plan (Sutherland, sheet XCVII) marked to show farm boundaries | [1944-1955] |
| RHP79434 | Ordnance Survey 6 inch plan (Sutherland, sheet XCVIII) marked to show farm boundaries | [1944-1955] |
| RHP79439 | Ordnance Survey 6 inch plan (Sutherland, sheet CV) marked to show farm boundaries | [1944-1955] |
| RHP79440 | Ordnance Survey 6 inch plan (Sutherland, sheet CVI) marked to show farm boundaries | [1944-1955] |
| RHP81716 | Plan (from Ordnance Survey) showing boundaries at Brora Station (British Railways) | 1969 |
| RHP97747 | Ordnance Survey 6 inch plan (Sutherland, sheet XCVI) marked to show classification of land | [1944-1954] |
| RHP140180 | Architectural drawing of house at Brora, Sutherland | 17 Aug 1925 |
| RHP143400/4/3 | Ordnance Survey 6 inch plan, Sutherland, Sheet NC 80 NW | 1970s-1980s |
| RHP143400/4/4 | Ordnance Survey 6 inch plan, Sutherland, Sheet NC 80 NE | 1970s-1980s |
| RHP143400/4/5 | Ordnance Survey 6 inch plan, Sutherland, Sheet NC 80 SE | 1970s-1980s |
| RHP143400/4/6 | Ordnance Survey 6 inch plan, Sutherland, Sheet NC 81 SW | 1970s-1980s |
| RHP143400/4/7 | Ordnance Survey 6 inch plan, Sutherland, Sheet NC 90 NW | 1970s-1980s |
| RHP143400/4/8 | Ordnance Survey 6 inch plan, Sutherland, Sheet NC 90 SW | 1970s-1980s |