| RHP4187 | Ordnance Survey 6 inch plan (Roxburghshire, XXII) of Hownam area | 1863 |
| RHP7424 | Architectural drawing of Hownam parish church, Roxburghshire | [20th century] |
| RHP11186 | Plan and reference list for the estate of Over Chatto, Roxburghshire | 1808 |
| RHP11186/1 | Plan of the estate of Over Chatto, Roxburghshire | 1808 |
| RHP11186/2 | Table of contents for the estate of Over Chatto, Roxburghshire | 25 Jan 1808 |
| RHP30802 | Photocopy of plan of excambion between farm of West Grange belonging to John, Duke of Roxburghe and part of Hownam belonging to Robert Marshal for settlement of marches. | 1797 |
| RHP30919 | Plan of marches of the lands of Greenhill and of Mainside | 6-19 Nov 1777 |
| RHP30919/1 | Plan of marches of the lands of Greenhill and of Mainside | 6-7 Nov 1777 |
| RHP30919/2 | Note by Thomas Wilson, land surveyor | 19 Nov 1777 |
| RHP32927 | Plan of barony of Whitton | 1762 |
| RHP47870 | 1. Photocopy of plan of lands of Upper and Nether Hindhope, Plenderleith and Browndownlaws belonging to John, Duke of Roxburghe
2. Photocopy of book of reference | 1769 |
| RHP47896 | Photocopy of plan (from Ordnance Survey) marked to show various farms and estates in parishes of Oxnam and Hownam | mid 20th century |
| RHP47899 | Photocopy of plan (from Ordnance Survey) marked to show various farms and woods in parishes of Yetholm, Hownam and Morebattle | mid 20th century |
| RHP49671 | Bound plans and sections of Kelso Water Supply by conduit from Heatherhope Reservoir | April 1911 |
| RHP79459 | Ordnance Survey 6 inch plan (Roxburghshire, sheet XIV) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP79460 | Ordnance Survey 6 inch plan (Roxburghshire, sheet XV) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP79464 | Ordnance Survey 6 inch plan (Roxburghshire, sheet XX) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP79465 | Ordnance Survey 6 inch plan (Roxburghshire, sheet XXI) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP79470 | Ordnance Survey 6 inch plan (Roxburghshire, sheet XXVI; Northumberland, part of sheet XXXI) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP79471 | Ordnance Survey 6 inch plan (Roxburghshire, sheet XXVII) | [1944-1955] |
| RHP89372 | Photocopy of plan of runrig lands of Hownam, the property of Duke of Roxburghe and Henry Davidson | 1753 |
| RHP89373 | Photocopy of plan of lands of Hownam and Kirkraw, the property of Duke of Roxburghe, distinguishing that part of lands of Hownam lately set off for Robert Davidson when these lands were under division, with table of contents: (Original badly damaged) | 1765 |
| RHP94300/22 | Photocopy plan of lands of Cessford, with table of contents | [c 1840] |
| RHP94300/23 | Photocopy plan of lands of Marchcleuch, with table of contents | [c 1840] |
| RHP94300/33 | Photocopy plan of lands of Hounam-Mains, with table of contents | [c 1840] |
| RHP94300/35 | Photocopy plan of lands of Greenhill, with table of contents | [c 1840] |
| RHP94300/36 | Photocopy plan of lands of Mainside, with table of contents | [c 1840] |
| RHP94309-94310 | Ordnance Survey 6 inch plans marked to show boundaries of farms, and drainage and fencing improvements in area between Edgerston and Beefstand Hill | [1983] |
| RHP143000/1/19 | Ordnance Survey 1 inch map (Sheet 18, Morebattle) | 1863 |