| RHP108 | Plan of the farm of Garth, Forfar, Angus | 1815 |
| RHP505 | Plan of the estate of Carse Gray, Angus | 1815 |
| RHP620 | Plan of grounds at Clocksbriggs, Angus | 1782 |
| RHP621 | Plans of the area at Locksbriggs, including an eel-house, in legal dispute, Angus | 1782 |
| RHP621/1 | Plan of the area at Locksbriggs, including an eel-house, in legal dispute, Angus | 1782 |
| RHP621/2 | Plan of the area at Locksbriggs, including an eel-house, in legal dispute, Angus | 1782 |
| RHP622 | Plan of the ground in Forfar disputed by David Gray, brewer in Forfar, and John Barry, manufacturer there and others | 20 Aug 1790 |
| RHP3274 | Plan of the estate of Carsegray, Angus | 1815 |
| RHP3504 | Ordnance Survey 1/2500 plan of burgh of Forfar marked to show intended outlet sewer | 1878 |
| RHP7929 | Architectural drawing of Forfar parish church, Angus | 1795 |
| RHP7930 | Architectural drawing of Forfar parish church, Angus | 1795 |
| RHP7931 | Architectural drawing of Forfar parish church, Angus | 1795 |
| RHP7932 | Architectural drawing of Forfar parish church, Angus. | 1795 |
| RHP7933 | Plan and index of Forfar parish church and churchyard, Angus | c 1800 |
| RHP7933/1 | Plan of Forfar parish church and churchyard, Angus | c 1800 |
| RHP7933/2 | Index of lairs in Forfar parish church and churchyard, Angus | c 1800 |
| RHP7934 | Plan of ground added to Forfar churchyard, Angus | 1832 |
| RHP7935 | Architectural drawing of Forfar parish church, Angus | 1 Aug 1882 |
| RHP7936 | Architectural drawing of Forfar parish church, Angus | 31 Aug 1882 |
| RHP7937 | Plan of proposed improvement of Lour Road, [Forfar, Angus] | 31 Mar 1883 |
| RHP7938 | Architectural plan of Forfar parish church, Angus | 1897 |
| RHP7939 | Architectural drawing of Forfar parish church, Angus | 1898 |
| RHP7940 | Architectural drawing of Forfar parish church, Angus | 1898 |
| RHP7941 | Architectural drawing of Forfar parish church, Angus | 1778 |
| RHP7942 | Architectural drawing of parish church of Forfar, Angus | [c 1796] |
| RHP13044/18 | Plan of the Town of Forfar from actual survey | 1822 |
| RHP15178 | Architectural plan of ticket office and porters' house at Forfar Station (Arbroath and Forfar Railway): 1839 | Jul 1839 |
| RHP15179 | Architectural south elevation of buildings for passengers at Forfar Station (Arbroath and Forfar Railway): 1839 | 1839 |
| RHP15180 | Architectural east and north elevation of buildings for passengers at Forfar Station (Arbroath and Forfar Railway): 1839 | 1839 |
| RHP15181 | Architectural plan and elevations of Kingsmuir Station House (Dundee and Forfar Railway): [19th century] | |
| RHP15267 | Architectural plan and elevation of proposed engine shed at Forfar for the Caledonian Railway, Northern Division | 1898 |
| RHP15803 | Architectural plan, section and elevation (2 copies) of engine sheds at Forfar Station (Arbroath and Forfar Railway): 1848 | 1848 |
| RHP15860 | Plan, including sectional plan, of lot eleven of the Arbroath and Forfar Railway in Forfar: 1836 | 1836 |
| RHP15861 | Plan of lot three of the Arbroath and Forfar Railway showing proposed line between Waulkmills and school near the Tarry Burn: 1837 | 1837 |
| RHP15862 | Plan of that part of the Whitehills plantation and field feued in 1837 by the magistrates and town council of Forfar to the Arbroath and Forfar Railway: 1840 | 1840 |
| RHP15863 | Plan and section of lot eleven of the Arbroath and Forfar Railway in Forfar: 1838 | 1838 |
| RHP15866 | Plan and section of lot ten of the Arbroath and Forfar Railway between Carse Moor and Swirrel Moss: 1836 | 1836 |
| RHP16370 | Architectural plan, section and elevation of passenger shed at Forfar (Scottish North Eatern Railway). | c 1860 |
| RHP16378 | Architectural plan, section and elevation of goods shed at Forfar (Scottish North Eastern Railway). | c 1860 |
| RHP16405 | Plan of Forfar Station (Aberdeen Railway). | c 1850 |
| RHP17125 | Plan of Scottish Midland Junction Railway from Glamis to Forfar. | c 1846 |
| RHP17725 | Plan of Forfar Station (Caledonian Railway). | 1871 |
| RHP17726 | Plan of Forfar Station (Caledonian Railway). | 1871 |
| RHP17727 | Plan of Forfar Station (Caledonian Railway). | 1871 |
| RHP17728 | Plan of Forfar Station (Caledonian Railway). | 1871 |
| RHP18470 | Plan, section and elevation of bridge over the Scottish North Eastern Railway at Forfar. | 1856 |
| RHP18471 | Plan and section of bridge over the Scottish North Eastern Railway at Forfar. | 1856 |
| RHP18478 | Plan, section and elevation of bridge near Forfar (Scottish North Eastern Railway). | 1856 |
| RHP18479 | Plan, section and elevation of bridge (with pencil annotations of cost) near Forfar (Scottish North Eastern Railway). | 1856 |
| RHP18554 | Architectural plan, section and elevation of signal cabins at Forfar and Broughty Ferry Junctions (Dundee and Forfar Railway). | mid 19th century |
| RHP18556 | Architectural plan, section and elevation of tank house at Coupar Angus and Forfar (Scottish Midland Junction Railway). | 1848 |
| RHP21186 | Plans of various Caledonian Railway works | 1873 |
| RHP21476 | Architectural plan of ground floor of Forfar court house, constabulary and county buildings, including alternative wing. | 1862 |
| RHP25432 | Ordnance Survey 6 inch plan coloured to show ground near Forfar Station (Scottish North Eastern Railway). | 1856 |
| RHP30160 | Series of architectural plans, elevations and section (6) of the Reid Hall, Forfar. | 1951 |
| RHP30727 | Photocopy of plan of Whitemire, the property of town of Forfar. | 1793 |
| RHP30728 | Photocopy of plan of Whitehills (Whitehill) lands designed for feuing in lots. (Original damaged) | 1859 |
| RHP30729 | Photocopy of plan of old and new marches between Heatherstacks belonging to Charles Gray and Whitemire belonging to town of Forfar. | 1839 |
| RHP30730 | Photocopy of plan of part of land in South Muir of Forfar belonging to burgh of Forfar adjoining Craignathro. | 1840 |
| RHP30732 | Photocopy of plan of ground at Forfar required by Caledonian Railway for Dundee and Forfar Railway through the property of burgh of Forfar. (Original damaged) | 1871 |
| RHP30733 | Photocopy of plan of loan in dispute lying between plantation belonging to town of Forfar and lands of Criagnathro referred to in action at instance of magistrates and town council against Joseph Pullar and others, tenants of Craignathro. | 1841 |
| RHP30734 | Photocopy of plan of ground to be feued near county prison at Forfar. (Original on tracing paper and in fragile condition) | Mid 19th century |
| RHP30735 | Photocopy of plan of Forfar Station showing proposed alterations (Scottish North Eastern Railway). | 1866 |
| RHP30736 | Photocopy of copy plan of Forfar Station showing proposed alteration of roads [Scottish North Eastern Railway]. | 1866 |
| RHP30737 | Photocopy of architectural plan and elevations of public market, etc proposed to be erected at Forfar. | 1844 |
| RHP30738 | Photocopy of architectural plan, elevation and section of school at South Muir, Forfar. | 1853 |
| RHP30739 | Photocopy of architectural plans and elevations of four alternative designs for proposed public wash house for bleaching greens at Forfar. | 1872 |
| RHP30740 | Photocopy of architectural plan and elevation of proposed hide and tallow depot for Messrs William Murray & Son at Shambles, [Forfar]. | 1889 |
| RHP30858 | Volume containing 24 architectural plans, sections, elevations and site plans of Forfar Poorhouse. | 1859-1947 |
| RHP31361 | Photocopy of sectional plan of a new direction of road from Forfar leading past the Quilkoe (Quilkie). | [early 19th century] |
| RHP34344 | 1. Bound plan and sections of railway connecting Arbroath and Forfar Railway at Forfar and Scottish Midland Junction Railway at Glamis, including portion of Johnston's map of Forfar. 2. Book of reference 3. House of Lords Standing Orders 4. Duplicate of 1. | 1846 |
| RHP34404 | 1. Bound plans and sections of water works for the burgh of Forfar including Den of Ogil Reservoir. 2. Book of reference 3. Edinburgh Gazette notice | 1878 |
| RHP34428-34436 | Architectural plans and elevations (9) of new hotel at Forfar. | 1891 |
| RHP39207 | Bound volume of 6 inch Ordnance Survey. plans (26) showing additional powers conferred on Caledonian Railway.
1. Renfrewshire sheet 11, marked to show Gourouck Branch
2. Renfrewshire sheet 1, marked to show continuation of Gorouck Branch Quays no. 1 and 2 pier at Gorouck
3. Lanarkshire sheet VI, marked to show railways nos. 1 and 2 at Springburn and extra land at Pollockshields
4. Lanarkshire sheet XI, marked to show railways nos. 3 and 4 connecting Strathavon Branch and Hamilton Branch and extra land at Hamilton.
5. Lanarkshire sheet XVII, marked to show railways nos. 7 and 8 and extra land at Hamilton
6. Lanarkshire sheet XII, marked to show railways nos. 5 and 6 at Cleland Branch and extra land at New Stevenston and Motherwell
7. Renfrewshire sheet XIII, marked to show railway no. 9 near Braidbar Quarries, Eastwood
8. Renfrewshire sheet XVII, marked to show continuation of railway no. 9 to Busby
9. Lanarkshire sheet X, marked to show continuation of railway no. 9 through Busby
10. Lanarkshire sheet I, marked to show extra land at Possil Loch
11. Lanarkshire sheet II, marked to show extra land on Castlecary Branch at Glenboig
12. Lanarkshire sheet VII, marked to show continuation of extra land as in 11, and extra land at Cardowan
13. Lanarkshire sheet XXVI, marked to show extra land at Carstairs Junction
14. Dumfriesshire sheet XLIX, marked to show doubling of Lockerbie Line
15. Dumfriesshire sheet XLI, marked to show continuation of doubling of Lockerbie Line
16. Dumfriesshire sheet XLII, as no. 15
17. Dumfriesshire sheet L, as no. 15 1
8. Dumfriesshire LI, as no. 15
19. Stirlingshire sheet XVII, marked to show extra land on Scottish Central Railway at Stirling
20. Perthshire sheet XCV, marked to show extra land at Crieff 21. Perthshire sheet XCVII, marked to show extra land at Almondbank Station
22. Perthshire sheet LXIII, marked to show extra land on Blairgowrie Branch at Blairgowrie House
23. Forfarshire sheet LIV, marked to show extra land on Dundee And Perth Railway at Dundee
24. Forfarshire sheet XLVI, marked to show extra land on Arbroath And Forfar Railway at Arbroath
25. Forfarshire sheet XXXIV, marked to show extra land at junction of Brechin Branch and FORFAR to Aberdeen line
26. Forfarshire sheet XXXIX, marked to show extra land on Arbroath And Forfar Railway near Guthrie Junction | 1877 |
| RHP42503 | 1. Architectural plan (contract drawing no. 1) of sunk Floor of Forfar Court Housse.
2. Specification. | 1868 |
| RHP42504 | Architectural plan (contract drawing no. 4) of Attic Floor of Forfar Court House. | 1868 |
| RHP42505 | Architectural plan (drawing no. 5) of Roof of Forfar Court House | 28 Apr 1868 |
| RHP42506 | Architectural elevations (contract drawing no. 7) to West and North of Forfar Court House. | Jan 1868 |
| RHP42507 | Architectural section (drawing no. 8) on lines AB and CD of Forfar Court House. | 28 Apr 1868 |
| RHP42508 | Architectural section (drawing no. 11) on line GH of Forfar Court House. | 28 Apr 1868 |
| RHP42509 | Architectural plan, elevation and section (with details on reverse) of pump house at Forfar Court House, with specification added. | 29 Apr 1870 |
| RHP42510 | Architectural plan, elevation and section of proposed council or board room for Forfar County Council at Police Buildings, [Forfar]. | 1894 |
| RHP42511 | Architectural plan showing alterations of fittings within small court room, Forfar [Court House]. | 3 Oct 1900 |
| RHP42759 | Ordnance Survey 1/2500 plan (Forfarshire, sheet XXXVIII.3) of part of Forfar marked to show locus. | 1867 |
| RHP42760 | Ordnance Survey 1/2500 plan (Forfarshire, sheet XXXVIII.7) of part of Forfar marked to show localities. | 1867 |
| RHP43164 | Architectural plan and section of Forfar Museum. | 1957 |
| RHP44067 | Plan of farm of Restenneth. | 1818 |
| RHP44324 | Plan of march between Restenneth and Parks of Pitscandly, Angus | Jun 1790 |
| RHP44325 | Plan of march between lands of Restenneth and Pitscandly, Angus | Sep 1790 |
| RHP45369 | 1. Bound plans and sections of various Scottish North Eastern Railway works, including diversions at Coupar Angus, Forfar, Bridge of Dun and Stonehaven Station. 2. Book of reference | 1860 |
| RHP45371 | 1. Bound plans and sections of various Scottish North Eastern Railway works, including diversions at Coupar Angus, Forfar, Bridge of Dun and Stonehaven Station. (as RHP 45369/1 with different date) 2. Book of reference | 1861 |
| RHP45700 | 1. Bound plans and sections of Scottish North Eastern Railway various works, including purchase of lands at Friockheim, Bridge of Dun, Stonehaven, Guthrie and Coupar Angus Stations, various diversions and other works (Gazette notice bound in) 2. Book of reference
3-4. Duplicates of nos. 1-2 | Nov 1860 |
| RHP75527 | Ordnance Survey 6 inch plan (Angus, sheet XXXII.SE) marked to show farm boundaries | [1944-1955] |
| RHP75528 | Ordnance Survey 6 inch plan (Angus, sheet XXXII.SE) marked to show farm boundaries | [1944-1955] |
| RHP75555 | Ordnance Survey 6 inch plan (Angus, sheet XXXVIII.NW) marked to show farm boundaries | [1944-1955] |
| RHP75556 | Ordnance Survey 6 inch plan (Angus, sheet XXXVIII.NE) marked to show farm boundaries | [1944-1955] |
| RHP75557 | Ordnance Survey 6 inch plan (Angus, sheet XXXVIII.SW) marked to show farm boundaries | [1944-1955] |
| RHP75558 | Ordnance Survey 6 inch plan (Angus, sheet XXXVIII.SE) marked to show farm boundaries | [1944-1955] |
| RHP75559 | Ordnance Survey 6 inch plan (Angus, sheet XLV.NW) marked to show farm boundaries | [1944-1955] |
| RHP75560 | Ordnance Survey 6 inch plan (Angus, sheet XXXIX.NW) marked to show farm boundaries | [1944-1955] |
| RHP75564 | Ordnance Survey 6 inch plan (Angus, sheet XXXIX.SW) marked to show farm boundaries | [1944-1955] |
| RHP75580 | Ordnance Survey 6 inch plan (Angus, sheet XLIV.NE) marked to show farm boundaries | [1944-1955] |
| RHP75583 | Ordnance Survey 6 inch plan (Angus, sheet XLV.NW) marked to show farm boundaries | [1944-1955] |
| RHP81482 | Plan of Clocksbriggs Station (Caledonian Railway): [late 19th century], corrected to 1943 | Late 19th century |
| RHP81495 | Plan of Forfar Station (Caledonian Railway) | [Late 19th century] |
| RHP81496 | Plan of Forfar Station (Caledonian Railway) | [Late 19th century] |
| RHP81497 | Architectural plan, elevation and section, with site plan, of waiting rooms on down main platform, proposed new plant inspector's office and parcels store at Forfar Station (Caledonian Railway) | 22 May 1916 |
| RHP81498 | Architectural plan, elevation and section, with site plan, of proposed lavatories for Goods Department at Forfar Station (Caledonian Railway) | 9 Dec 1912 |
| RHP81499 | Architectural plan, elevation and section, with site plan, of proposed goods shed and office for North British Railway at Forfar Station (Caledonian Railway) | [c 1912] |
| RHP81642 | Plan of proposed extension of premises of Messrs Graham & Scott's auction mart near Forfar Station (London Midland and Scottish Railway) | 28 Oct 1927 |
| RHP81659 | Plan of Auchterforfar Farm water supply for fields from railway side ditch (Caledonian Railway) | 18 Jul 1912 |
| RHP81750 | Architectural plans, elevations and sections, with site plan, of proposed signal box at Forfar Station (Railway Executive) | [c 1948] |
| RHP83318/1/13 | Plan of land at Curriehill Station and Baldragon Station for acquisition for Caledonian Railway various works | Dec 1906 |
| RHP83318/3/13 | Plan of land at Curriehill Station and Baldragon Station for acquisition for Caledonian Railway various works | Dec 1906 |
| RHP84223 | Plan of Caledonian Railway at Forfar | [c 1923] |
| RHP86256 | Feuing plan of field at Caldhame, the property of Lord Panmure | 1855 |
| RHP86258 | Feuing plan of Caldhame | 1865 |
| RHP94254 | Plan, elevation and sections of proposal to close Lour Level Crossing at 13 mp and provide improved drainage facilities, with details of inverted syphon and pump (London Midland and Scottish Railway) | 5 Jun 1929 |
| RHP94255 | Copy plans, including site plan, elevation and section of proposed filter for railway drainage at Lour (London Midland and Scottish Railway) | 12 Dec 1927 |
| RHP94257 | Plan and section of proposed new drainage system at Lour [London Midland and Scottish Railway] | [1927-1929] |
| RHP94629 | Tracing of architectural plans of site, ground floor and roof of Forfar Employment Exchange, Castle Street: October 1937, revised June 1939 | Oct 1937-Jun 1939 |
| RHP94630 | Tracing of architectural elevations and sections of Forfar Employment Exchange, Castle Street: September-October 1937, revised June 1939 | Sep 1937-Jun 1939 |
| RHP94631 | Tracing of architectural plans, elevations, sections and details of men's porch and waiting space, staff entrance etc at Forfar Employment Exchange, Castle Street | Sep 1937 |
| RHP94632 | Tracing of architectural plans, elevations, sections and details of heating chamber, men's entrance porch etc at Forfar Employment Exchange, Castle Street | Jul 1937 |
| RHP94633 | Tracing of architectural plans, including site plan, elevations and details of drainage and lavatories at Forfar Employment Exchange | Jul 1937 |
| RHP94634 | Tracing of architectural plans, elevations and section of entrance porch for juveniles, staff and women, men's vestibule etc at Forfar Employment Exchange | Nov 1937 |
| RHP94635 | Tracing of architectural plans, elevation and section of ground floor and roof of Forfar Employment Exchange | Jan 1938 |
| RHP94636 | Tracing of architectural plans, sections and details of heating chamber at Forfar Employment Exchange | Jul 1937 |
| RHP94637 | Tracing of architectural plan of ground floor of Forfar Employment Exchange, Castle Street, with notes for electrical contractor | Oct 1937 |
| RHP94638 | Architectural drawing of ground floor of Forfar Employment Exchange, Castle Street, Angus | Oct 1937 |
| RHP94838 | Architectural plan of sunk floor and dwarf walls of Forfar [Sheriff] Courthouse, annotated | 28 Apr 1868 |
| RHP94839 | Architectural plan and detail of courtroom floor of Forfar [Sheriff] Courthouse | Aug 1868 |
| RHP94840 | Architectural plan of ground floor of Forfar [Sheriff] Courthouse | Aug 1868 |
| RHP94841 | Architectural elevation of south front of Forfar [Sheriff] Courthouse | Aug 1868 |
| RHP94842 | Architectural elevations of east and west fronts of Forfar [Sheriff] Courthouse | Aug 1868 |
| RHP94843 | Architectural elevation of north front of Forfar [Sheriff] Courthouse | Aug 1868 |
| RHP94844 | Architectural drawing of section of Forfar [Sheriff] Courthouse | 28 Apr 1868 |
| RHP94845 | Architectural plan and details of boundary walls of Forfar Courthouse, variously annotated, including docquet relating to contract signed in terms of the Sheriff Courthouses Act, 1860: 28 April [1868] | 1860-28 Apr 1868 |
| RHP94850 | Architectural plan of ground floor of Forfar Prison, showing proposed additions, annotated with names of individuals contracted by Forfarshire Prison Board | 10 Apr 1850 |
| RHP96324 | Ordnance Survey 6 inch plan (Angus, sheet XXXVIII.NW) marked to show classification of land | [1944-1955] |
| RHP129062 | Hand coloured drawing showing elevations, plan and section for overbridge at 181 miles 41 chains from Carlisle, near Forfar (Caledonian Railway) | c 1923 |
| RHP129063 | Hand coloured drawing showing elevation, plan and sections for overbridge for Occupation Road at 181 miles 41 chains near Forfar (London, Midland and Scottish Railway) | 1923-1947 |
| RHP131309 | Weight diagram showing elevation, plan and section of bridge carrying public road over Dundee to Forfar railway at 13 miles 13 chains between Kirkbuddo and Kingsmuir Stations (London, Midland and Scottish Railway) | 1933 |
| RHP131802 | Elevation, plan and sections of a bridge carrying the Forfar to Kirriemuir road over the railway about one mile west of Forfar Station (London Midland and Scottish Railway) | 1933 |
| RHP131803 | Elevation, plan and sections of a bridge carrying the Forfar to Brechin road over the railway about half a mile west of Forfar Station (London Midland and Scottish Railway) | 1933 |
| RHP131804 | Elevation, plan and section of a bridge carrying the Forfar to Brechin road (B9134) over the Forfar and Dundee Branch Railway about half a mile east of Forfar Station (London Midland and Scottish Railway) | 1933 |
| RHP140120 | Plan of Forfar and Lunanhead, Angus | 21 Feb 1912 |
| RHP140420 | Architectural drawing of Forfar Post Office | 17 Sep 1969 |
| RHP141513 | Architectural drawing of part of High Street, Forfar | 28 Jul 1836 |
| RHP141738 | Plan of lands of Lour | 1875 |
| RHP142051 | Plan of proposed extension of boundaries of the Royal Burgh of Forfar , Angus | 1971 |
| RHP142460/26 | Plans of salmon fishing rights on River North-Esk, Forfarshire and Kincardineshire | 1902-1920 |
| RHP142460/27 | Plans of salmon fishing rights on River South-Esk, Forfarshire | c1902-c1920 |
| RHP142460/28 | Plans of salmon fishing rights on River Isla, Forfarshire and Perthshire | c1902-c1920 |
| RHP143000/2/16 | Ordnance Survey 1 inch map (Sheet 57, [Forfar]) | 1868 |
| RHP143400/12/87 | Ordnance Survey 6 inch plan, Angus, Sheet NO 44 NE | 1960s-1970s |
| RHP143400/12/88 | Ordnance Survey 6 inch plan, Angus, Sheet NO 44 NW | 1960s-1970s |
| RHP143400/12/93 | Ordnance Survey 6 inch plan, Angus, Sheet NO 45 SE | 1960s-1970s |
| RHP143400/12/94 | Ordnance Survey 6 inch plan, Angus, Sheet NO 45 SW | 1960s-1970s |