| RHP5216 | Bound plans and sections of work at Ballochroy Pier. | 1910 |
| RHP11652 | Plan of the mouth of Loch Fyne, from Tarbert to Ardlamont Point. | 1806 |
| RHP11994 | Plan of a site on Burnside Lane in Tarbert. | 1887 |
| RHP12052 | Ordnance Survey 1/2500 plan (Argyllshire, Sheet CCXXIII.8) of area of Cnoc Donn, with hut marked. | 1877 |
| RHP13087 | Plan of Tarbert Harbour: 1891. | 1891 |
| RHP14640 | Ordnance Survey 1 inch map (Sheet 20), marked relating to Largie estate: 1905 | 1905 |
| RHP14641 | Ordnance Survey 6 inch plans, marked relating to Largie estate: 1926 | 1926 |
| RHP22206 | 1. Bound plans and sections of Ballochroy pier showing proposed new works. (Excerpt from Edinburgh Gazette attached.) 2.Duplicate thereof
3. Draft provisional order | 1909 |
| RHP22207 | 1. Bound plans and sections of Tarbert harbour, Lochfyne, showing proposed new works
2. Duplicate thereof
3-4. Excerpt from Edinburgh Gazette (2 copies)
5. Draft provisional order | 1909/1911 |
| RHP22207/1 | Bound plans and sections of Tarbert Harbour, Lochfyne, showing proposed new works | 1909/1911 |
| RHP22208 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXCII S.W) marked to show limits of Tarbert harbour | 18 Jul 1912 |
| RHP34110 | Admiralty chart of Lochgilp, Millport and East Loch Tarbert. | 1893 |
| RHP35897 | Plan and sections of the [projected] Argyll Canal from West to East Tarbert, showing limits of deviation and individual holdings required, with an enlarged plan of the route at East Tarbert. | 1845 |
| RHP76271 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXCI.SE) marked to show farm boundaries | [1944-1954] |
| RHP76528 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXCII.SW) marked to show farm boundaries | [1944-1945] |
| RHP76533 | Ordnance Survey 6 inch plan (Argyllshire, sheet CCI.NE) marked to show farm boundaries | [1944-1945] |
| RHP76535 | Ordnance Survey 6 inch plan (Argyllshire, sheet CCI.SE) marked to show farm boundaries | [1944-1945] |
| RHP76536 | Ordnance Survey 6 inch plan (Argyllshire, sheet CCII.NW) marked to show farm boundaries | [1944-1945] |
| RHP76538 | Ordnance Survey 6 inch plan (Argyllshire, sheet CCII.SW) marked to show farm boundaries | [1944-1945] |
| RHP76541 | Ordnance Survey 6 inch plan (Argyllshire, sheet CCXI.SE) marked to show farm boundaries | [1944-1945] |
| RHP86147 | 1. Plan and sections of Argyll Canal from East to West Loch Tarbert: 25 November 1845
2. Book of reference
3. Standing order
4. Act
5-6. Duplicates of nos. 1-2 | 25 Nov 1845 |
| RHP86148 | 1. Bound plans and sections of Argyll Canal from East to West Loch Tarbert, showing proposed lock, training walls and other works: November 1882
2. Book of reference
3-4. Duplicates of nos. 1-2 | Nov 1882 |
| RHP93953/63 | General plan of Tarbert Harbour (fishery basin and passenger pier) | Feb 1955 |
| RHP96385 | Ordnance Survey 6 inch plan (Argyll, sheet CXCII.SW) coloured to show classification of land | [1944-1955] |
| RHP140525 | Architectural drawing of farm steading of Auchnafad | [1880] |
| RHP142891 | Plans of repairs and works to Kilcalmonell and Skipness Parish Church | 1978-1994 |
| RHP142891/1 | Architectural drawing of extension to Kilcalmonell Parish Church, Argyll | 20 May 1978 |
| RHP142891/2 | Architectural drawing of extension to Kilcalmonell Parish Church, Argyll | 20 May 1978 |
| RHP142891/3 | Architectural drawing of repairs to Kilcalmonell Parish Church, Argyll | Jun 1990 |
| RHP142891/4 | Architectural drawing of proposed internal alterations to Kilcalmonell Parish Church, Argyll | 13 Sep 1994 |
| RHP142891/5 | Architectural drawing of proposed internal alterations to Kilcalmonell Parish Church, Argyll | 23 May 1995 |
| RHP142891/6 | Architectural drawing of existing Kilcalmonell Parish Church, Argyll | 12 Apr 1995 |
| RHP142891/7 | Architectural drawing of proposed internal alterations to Kilcalmonell Parish Church, Argyll | 13 Sep 1994 |
| RHP142891/8 | Architectural drawing of proposed new stone bell turret at Kilcalmonell Parish Church, Argyll | 13 Sep 1994 |
| RHP142891/9 | Drawing of a bird in flight | nd |
| RHP143000/1/21 | Ordnance Survey 1 inch map (Sheet 20, Killean) | 1882 |
| RHP143000/1/29 | Ordnance Survey 1 inch map (Sheet 28, Jura) | 1885 |