| RHP3633/1 | Plan of the town street and common of Medomsley, belonging to Mr Robert Hunter | 1736 |
| RHP3633/2 | Plan of several parcels of ground at and nigh Medomsley, belonging to Mr Cuthbert Hunter | 1755 |
| RHP3633/3 | Plan of the village of Medomsly | 1776 |
| RHP3866 | Chart of Hartlepool Bay, with the new docks and harbour: 1834. | 1834 |
| RHP6980 | Admiralty chart of coast from Flamborough Head to Hartlepool | 1902 |
| RHP6981 | Admiralty chart of coast from Hartlepool of St. Abb's Head | 1912 |
| RHP9717/30-34 | 30-33. Architectural tracing plan, section and elevations of Trinity Chapel in Gateshead 34. Note relating thereto. | 1843 |
| RHP14609 | Map of the county palatine of Durham, with inset maps of part thereof in Northumberland and the North Riding of Yorkshire 1818-19, published in 1831 (Vignette of Durham Cathedral) | 1818-1819 |
| RHP20635 | Map (4 sheets) of the county palatine of Durham: 1818-19, published in 1820. (Vignette of Durham Cathedral) | 1818-1819 |
| RHP20879 | Plan (2 copies) of the Backstone Bank estate in the parish of Wolsingham (affixed to particulars of the estate, to be sold by auction) | 1883 |
| RHP20880 | Tracing plan of Backstone Bank estate | 1883 |
| RHP20881 | Tracing plan of Backstone Bank estate | Mid 19th century |
| RHP20882 | Plan of Horden collieries | 1905 |
| RHP21633 | Architectural plan of ground floor of South Shields police station and court house | Late 19th century |
| RHP21634 | Architectural plan of first floor of South Shields police station and court house | Late 19th century |
| RHP21635 | Architectural plan of second floor of South Shields police station and court house | Late 19th century |
| RHP21636 | Architectural sectional plan of South Shields police station and court house | Late 19th century |
| RHP21637 | Architectural elevations of South Shields police station and court house | Late 19th century |
| RHP21638 | Architectural elevations of South Shields police station and court house | Late 19th century |
| RHP21639 | Architectural pictorial elevation of South Shields police station and court house | Late 19th century |
| RHP21640 | Architectural plan, elevation and section of house [in South Shields?] | Late 19th century |
| RHP23785 | Pictorial view of Hetton Colliery, showing locomotives on its railway, and including the depot on the River Wear near Sunderland and a sectional plan of the strata. | 1824 |
| RHP31928 | Ordnance Survey 1/2500 plan marked to show Ironside's estate at Houghton-Le-Spring. | 1901 |
| RHP38962 | Specimen north-eastern area control graph between Trimdon, Ryhope and Cemetery North. | c 1960 |
| RHP41827 | Plan of River Tyne from the Sea to Newburn: [ante 1923] | 1923 |
| RHP44792 | 1. Bound plans and sections of the Newcastle and Berwick Railway, with branches to Kelso, Alnwick and Blyth: 1844 2. Book of reference 3. Act of authorisation. 4-5. Duplicates of nos 1-2 | 1845 |
| RHP44793 | 1. Bound plans and sections of the Northumberland Railway between Newcastle upon Tyne and Berwick- upon-Tweed, with branches to Kelso, Gateshead and Morpeth. 2. Book of reference 3-4. Duplicates of nos 1-2 | 1844 |
| RHP46892 | Photocopy of map of county palatine of Durham | 1840 |
| RHP72888 | Refiner (Small) No. 129 for Team Valley Paper Mills Ltd: Arrangement. | 1949 |
| RHP72943 | Felt Washer for Team Valley Paper Mills Ltd, Gateshead: Plan and elevation. | 1905 |
| RHP73013 | Paper Making Machine for Hartlepool Pulp and Paper Company Ltd, West Hartlepool: Plan and elevation. | 1920 |
| RHP83369 | Architectural drawing of Houghton Hall, Durham, England | [Early 19th century] |
| RHP83370 | Architectural drawing of ground floor of Houghton Hall, Durham, England | Jan 1845 |
| RHP83371 | Architectural drawing of ground floor of Houghton Hall , Durham, England | 1849 |
| RHP83372 | Architectural drawing of ground floor of Houghton Hall, Durham, England | Oct 1849 |
| RHP83373 | Architectural drawing of interior of schoolroom at Houghton le Spring, Durham, England | 1828 |
| RHP83374 | Architectural drawing of ground floor of Finchale Priory, Durham, England | 14 Sep 1836 |
| RHP85630 | Plans of Garesfield Colliery Railway from Chopwell A Pit to staith at Derwenthaugh, Durham, England | Sep 1846 |