| RHP9726 | Plan of 5 miles round the City of Bath | 1773 |
| RHP9727 | Plan of the city of Bath "with the additional buildings to the present time" | 1779 |
| RHP9729 | Title page from Ordnance Survey 1 inch maps (Somerset, Devon and Cornwall) | 1809 |
| RHP9730 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XX) | 1809 |
| RHP9731 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XXV) | 1809 |
| RHP9732 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XXIV) | 1809 |
| RHP9733 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XXIII) | 1809 |
| RHP9734 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XXII) | 1809 |
| RHP9735 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XXVI) | 1809 |
| RHP9736 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XXI) | 1809 |
| RHP9737 | Ordnance Survey 1 inch map (Somerset, Devon and Cornwall, Sheet No XXVII) | 1809 |
| RHP9764 | Plan of the country round the City of Bath, to the extent of fifteen miles and upwards | 1814 |
| RHP20650 | Map (6 sheets) of the county of Somerset, published in 1822. (Vignette of Wells Cathedral) | 1820-1821 |
| RHP38344 | Ordnance Survey 1 inch map marked to show line of proposed West Somerset Light Railway and connections. | 12 June 1924 |
| RHP38358 | Ordnance Survey. 6 inch plan showing railways in Shepton Mallet area. | 1948 |
| RHP38363 | Diagram plan of Somerset and Dorset Joint Line (SR and LMSR) and connections, with gradient profiles and authorisation and opening dates. | 1936 |
| RHP38365 | Ordnance Survey 1/2 inch map marked to show lines of Somerset and Dorset Joint Railway and connections. | 1933 |
| RHP41876 | Map of 5 miles round the city of Bath from an actual survey, including all the new roads, with alterations and improvements to the present time: | 25 March 1787 |
| RHP41877 | A new and correct plan of the city of Bath and places adjacent, with description of the city and 'rules relating to Bath as they stand in the Pump Room': [late 18th century] | [late 18th century] |
| RHP41878 | Sketch plan of streets at Queen's Square, Bath: | [late 18th century] |
| RHP41884 | Map of the environs of Taunton showing railways, stations, roads, etc: ante 1876 | c1876 |
| RHP42011 | Plan of unidentified farm property lying between Wellington and Taunton. | [19th century] |
| RHP43162 | Architectural plan of first floor of Holbourne Museum, Bath. | 1967 |
| RHP43163 | Architectural plan of second floor of Holbourne Museum, Bath. | 1967 |
| RHP72682 | Paper making machine No. 201 for R. Sommerville & Co. Ltd, Creech St. Michael Paper Works: Plan and elevation. | 1918 |
| RHP72884 | Refiner (Large Size, Motor Driven) No. 110 for Wansbrough Paper Company Ltd, Watchet: Arrangement. | 1932 |
| RHP72908 | Pulp Masters Nos. 17-18 for Wansbrough Paper Company Ltd, Watchet: General Arrangement. | 1951 |
| RHP117004 | Admiralty chart of the coast of Somerset and Devon (sheet 1160) | 1983 |