| RHP2921 | Plan of Stornoway Harbour, Ross and Cromarty | 1846 |
| RHP3000 | Plan of the town of Stornoway showing feus | 1896 |
| RHP3019 | Architectural drawings of Crofters Houses (Ireland) and specification for houses at proposed Fishing Settlement at Battery Park, Stornoway | 1904 |
| RHP5212 | 1.-6 Plans and sections of proposed pier at Bayble Bay.
7. Ordnance Survey 6 inch plan (Island of Lewis, Ross-shire, Sheet 28), marked to show proposed pier at Bayble Bay and breakwater at Swordale Bay. | 1893 |
| RHP5231 | Plan and sections of Knock and Swordale Breakwater, Ross and Cromarty | 26 Sep 1893 |
| RHP5231/1 | Plan and cross sections of Knock and Swordale Breakwater, Ross and Cromarty | 26 Sep 1893 |
| RHP5231/2 | Sections of Knock and Swordale Breakwater, Ross and Cromarty | 26 Sep 1893 |
| RHP5447 | Bound plans and sections of work at Portnaguiran pier. | 1951 |
| RHP5921 | 1. Bound plans and sections of Stornoway Harbour. Book of Reference thereto. | 1925 |
| RHP13044/41 | Plan of the Town and Harbour of Stornaway, Island of Lewis, from actual survey | 1821 |
| RHP13242 | Sketch plan of Stornoway Bay: 1891. | 1891 |
| RHP14477 | Admiralty chart of Stornoway Harbour, marked to show hulks: 1914 | 1914 |
| RHP21140 | Ordnance Survey 6 inch plan marked to show proposed new holdings at Gress | 1914 |
| RHP21143 | 1-3. Bound plan and section (3 copies) of Stornoway Harbour
4-5. Book of reference thereto (2 copies) | 1946 |
| RHP21144 | Admiralty chart of Stornoway Harbour, marked | 1946 |
| RHP21145 | Admiralty chart of approaches to Stornoway, marked | 1946 |
| RHP21146 | Ordnance Survey 6 inch plan (Island of Lewis, sheet XXVIII) of Baybie area | 1939 |
| RHP21147 | Plan of the burgh of Stornoway, showing extension of burgh boundaries | 1954 |
| RHP21148 | Aerial photographs (2) of the burgh of Stornoway | 1954 |
| RHP21754 | Architectural plan of ground floor and elevation of Stornoway prison | Mid 19th century |
| RHP21755 | Architectural plan of second floor and elevation of Stornoway prison | Mid 19th century |
| RHP21756 | Architectural plan of third floor and roof of Stornoway prison | Mid 19th century |
| RHP21757 | Architectural plan of foundations and section of Tain prison | Mid 19th century |
| RHP21758 | Architectural plan of flues and section of Stornoway prison | Mid 19th century |
| RHP21759 | Architectural elevation and section of Stornoway prison | Mid 19th century |
| RHP21760 | Architectural sectional plan of Stornoway prison | Mid 19th century |
| RHP21761 | Architectural plan and elevation of boundary walls and section of ash pit etc of Stornoway prison | Mid 19th century |
| RHP23872 | 1. Bound plan and sections of Stornoway Harbour including proposed wharf and deepening of channel. 2. Book of reference thereto 3. Draft provisional order 4-5. Duplicates of Nos. 1-2 | 1925 |
| RHP23881 | 1. Ordnance Survey 1 inch map marked to show area of supply and compulsory works of Stornoway and District Electricity. 2. Special order | 1932 |
| RHP23889 | 1. Bound plan and sections of Stornoway Harbour including proposed slipway, causeway and embankment. 2. Book of reference thereto 3. Draft provisional order 4-5. Duplicates of Nos. 1-2 | 1946 |
| RHP23892 | Ordnance Survey 6 inch plan marked to show proposed new pier at Portnaguiran. | 1951 |
| RHP30866 | Volume containing 19 architectural plans, sections, elevations and site plans of Lewis Combination Poorhouse. | 1895-1914 |
| RHP30906 | Architectural plan of ground floor of Coulregrein House, Stornoway. | 1935 |
| RHP30908 | Architectural plan, section and elevation (2 copies) of Coulregrein House, Stornoway. | 1937 |
| RHP34135 | Admiralty chart of approaches to Stornoway. | 1901 |
| RHP35128/1-13 | Plans showing feus for churches in Lewis, Ross and Cromarty | 1909 |
| RHP43155 | Plan of part of Stornoway, showing proposed roads and cottages adjacent to Lewis Cottage Hospital. | 1919 |
| RHP43156 | Plan of proposed site of Police Station at Stornoway. | 1937 |
| RHP43157 | Plan of proposed feu to Carnegie U.K. Trust in Stornoway. | 1920 |
| RHP43158 | Architectural section and pictorial elevation of school hostel at Stornoway. | 1920 |
| RHP43267 | Plan of island of Lewis, Ross and Cromarty | 1821 |
| RHP43425 | Ordnance Survey 1 inch map to show roads between Stornoway and Carloway. | 1907 |
| RHP44256 | 1. Ordnance Survey 6 inch plan marked to show proposed smallholdings scheme for Board of Agriculture for Scotland at and round Gress and [Glen Tolsta]. 2. Duplicate of no 1, also marked | 1915 |
| RHP44257 | 1. Feuing plan of Battery Park by Seaview Terrace, Stornoway. 2. Duplicate of no 1 | Aug 1904 |
| RHP46842 | Ordnance Survey 6 inch plan marked to show lands at Stornoway, part of estate of The Lews, referred to in petition of Donald Matheson for authority to feu | 1897 |
| RHP82262 | Architectural plans, elevation and section of proposed maternity wards at Lewis Hospital, Stornoway | Dec 1928 |
| RHP82263 | Architectural plan and elevation (No. 2) of proposed maternity wards at Lewis Hospital, Stornoway | Dec 1928 |
| RHP82264 | Architectural plan (No. 3) of proposed maternity wards at Lewis Hospital, Stornoway | 28 Dec 1928 |
| RHP82265 | Architectural plans and elevation (No. 4) of proposed maternity wards at Lewis Hospital, Stornoway | [1928] |
| RHP82268 | Plans and sections of proposed stone quay and timber wharf at Stornoway Harbour | Nov 1864 |
| RHP82269 | Bound plans and sections of Stornoway Harbour Provisional Order, proposed quay walls in inner and outer harbour and other works | Oct 1888 |
| RHP82270 | Bound plans and sections of Stornoway Harbour improvements (Gazette notice bound in) | Oct 1891 |
| RHP82271 | 1. Bound plans and sections of Stornoway Harbour Provisional Order:
2. Duplicate of no. 1 | Mar 1925 |
| RHP82273 | 1. Ordnance Survey 1 inch map (Stornoway, sheet 105) marked to show Stornoway and District Electricity area of supply:
2. Special order | 1932 |
| RHP82283 | 1. Ordnance Survey 6 inch plan (Ross-shire, sheet 27) marked to show proposed works under Stornoway Harbour Provisional Order: November 1880
2. Plans and sections of proposed works at Stornoway Harbour: November 1880
3. Plan and sections of proposed timber wharf and stone quay at Stornoway Harbour: November 1864
4. Provisional order | Nov 1864-Nov 1880 |
| RHP82285 | Bound plans and sections of Stornoway Harbour Provisional Order, proposed quay walls in inner and outer harbour | Oct 1888 |
| RHP82289 | 1. Bound plans and sections of Stornoway Harbour proposed works:
2. Provisional order | Nov 1891 |
| RHP82896 | Plan of Stornoway showing feus | [1911] |
| RHP93953/47 | General plans of Portnaguiran Pier | Sep 1954 |
| RHP93953/60 | General plan of Stornoway Harbour | Sep 1954 |
| RHP94612 | Tracing of architectural plans elevations and sections of Stornoway Coastguard Station, Leverhulme Drive | 30 Sep 1954 |
| RHP94613 | Tracing of architectural plans, elevations and sections of Stornoway Coastguard Station, Leverhulme Drive | 12 Oct 1954 |
| RHP94614 | Tracing of architectural plans, elevations and sections of Stornoway Coastguard Station, Leverhulme Drive | 15 Oct 1954 |
| RHP98447 | Sketch plan of situation, boundaries and principal pertinents of the tacks of Eilean Chaluim Chille (St Colum's) and Cromore (Cromor) | 1778 |
| RHP117139 | Plan of Sandwick Burial Ground Extension, Ross and Cromarty | Oct 1951 |
| RHP117140 | Ordnance Survey 25 inch plan (Ross and Cromarty, Isle of Lewis, sheet XX.14) marked to show boundary of special drainage district | Mar 1954 |
| RHP117141 | Ordnance Survey 25 inch plan (Island of Lewis, Ross and Cromarty, sheet XX.15), marked to show boundary [of special drainage district] | 1954 |
| RHP117142 | Plan of New Crossbost Cemetery, Ross and Cromarty | Sep 1965 |
| RHP117143 | Plan of Sandwick Burial Ground Extension, Ross and Cromarty | Sep 1966 |
| RHP117144 | Plan of Sandwick Burial Ground Extension, Ross and Cromarty | Aug 1966 |
| RHP117145 | Admiralty chart showing approaches to Stornoway, Ross and Cromarty | 1968-1977 |
| RHP117151 | Architectural drawing of Mac's Imperial Bar, North Beach Street, Stornoway | Jan 1981 |
| RHP117152 | Architectural drawing of Mac's Imperial Bar, North Beach Street, Stornoway | Jan 1981 |
| RHP141594 | Architectural drawings of Meteorological Office radar station, Beacon Hill, Lewis | 1990 |
| RHP141594/1 | Plan | Aug 1990 |
| RHP141594/2 | Elevations | Aug 1990 |
| RHP141594/3 | Elevations | Aug 1990 |
| RHP141594/4 | Section Y-Y | Aug 1990 |
| RHP141594/5 | Section Z-Z | Aug 1990 |
| RHP141594/6 | Section W-W | Aug 1990 |
| RHP141594/7 | Building plan and foundation plan | nd |
| RHP141594/8 | Location diagram and site plan | nd |
| RHP141594/9 | Setting out plan | nd |
| RHP142174 | Architectural drawings of property at nos 36 & 37 Bayhead Street, Stornoway | 1956 |
| RHP142174/1 | Floor plans, as existing | [1956] |
| RHP142174/2 | Floor plans, as proposed | [1956] |
| RHP142174/3 | Site plan | [1956] |
| RHP142638 | Plan of property on Bay Head Street, Lewis | 28 Jul 1890 |
| RHP142641 | Chart of Stornoway harbour | 6 Aug 1904 |
| RHP142642 | Plan of Newvalley and Guershader, Lewis | 4 Jun 1906 |
| RHP142643 | Plan of part of road from Stornoway to Portnaguran, Lewis | 26 Jun 1908 |
| RHP142644 | Plan of proposed weir across Bayhead River, Lewis | Oct 1908 |
| RHP142645 | Plan of Stornoway cemetery extension, Lewis | 12 Dec 1908 |
| RHP143000/3/18 | Ordnance Survey 1 inch map (Sheet 105, [Isle of Lewis]) | 1858 |
| RHP143000/3/19 | Ordnance Survey 1 inch map (Sheet 106, [Isle of Lewis]) | 1858 |
| RHP143400/3/36 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 43 NW | 1981 |
| RHP143400/3/37 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 43 NE | 1981 |
| RHP143400/3/38 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 43 SE | 1981 |
| RHP143400/3/39 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 43 SW | 1981 |
| RHP143400/3/40 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 44 SE | 1981 |
| RHP143400/3/43 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 53 NW | 1981 |
| RHP143400/3/44 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 53 NE | 1981 |
| RHP143400/3/45 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 53 SE | 1981 |
| RHP143400/3/46 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 53 SW | 1981 |
| RHP143400/3/47 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 54 NW | 1981 |