West Boldon Hospital for Infectious disease shown on Ordnance Survey 3rd edition 1:2500 map.

Standing stone marked as 'Stone' on the Ordnance Survey 1897 25 inch map. It is not shown on previous or subsequent editions. Images are available on the internet but no antiquarian references are known. The stone was reported by a member of the public to have disappeared in 2021, having been leaning about 20 degrees from vertical. The field contains medieval ridge and furrow (HER17594) indicating that the stone is post-medieval in date. Its purpose is unknown.

This tunnel was discovered during excavations for a carrier drain associated with road improvements. The brick-built arched structure was investigated by the mechanical excavation of test pits along its projected alignment which were subject to a watching brief (event 5193 report 2017/154). It consisted of two parallel brick walls, set 0.8m apart, which survived to a maximum height of 1.8m, and the remains of a brick floor. The walls and capping of the structure were two brick courses wide and comprised hand-made bricks bonded with a lime-based mortar and laid stretcher bond. Two upright wooden planks were set against the south-east facing wall. The structure lay at approximately 2m below ground level and had been damaged during past groundworks. It was tentatively interpreted as a drift, providing access from the pit shaft to a coal seam or another shaft.

This north-south wagonway was identified during trial trenching carried out in 2020. Only the trackside gullies filled with coal fines survived.

A Second World War Air raid precaution post or firewatcher's post located adjacent to the car park at Hebburn Sports and Social Club (cricket ground).

Ridge and furrow earthworks which are thought to have medieval and/or post-medieval origins. The earthworks have been identified to be typical of those created by medieval oxen-driven ploughs.

A 19th century walled garden located east of Penshaw House (HER 7043) a Grade II listed building (List Entry 1354969) which was constructed c. 1830. The walled garden is considered to form part of the visual and context setting of the listed building. The walled garden was constructed when Penshaw House was owned by Nathaniel Hindhaugh who in 1847 was responsible for the diversion of Station Road to create private grounds for the house. The walled garden does not appear on the tithe map of 1848 and first appears on the Ordnance Survey map of 1857-1889. The walled garden was subject to Historic England Level 2 standard building recording in 2022 prior to refurbishment. A series of horticultural cold frames were recorded adjacent to the eastern wall and in the south-west corners of the walled garden. A greenhouse/glass house was recorded in the north-east corner, and an iron pipe was noted to run from the easternmost structure along the northern wall towards the greenhouse/glasshouse. The presence of the iron pipe suggests that there was a boiler house which would have been used for heating the structure within the walled garden. One of the bricks within the greenhouse/glasshouse was stamped ‘PENSHAW BRICK WKS CO DURHAM’ which was in operation from between 1897-1925 (Davison 1986, 187). The south face of the southern boundary of the garden comprises of a roughly coursed sandstone wall with coping stones, the north facing side of the wall comprises of a brick lining in an English Garden Wall bond. The western part of the boundary wall survived for 17.50m ENE/WSW and was 0.46m wide and 1.57m high. Many walled gardens have stone on the external face and brickwork on the internal is because brick absorbs and retains solar heat and then slowly releases it, which allows fruit trees and other more tender plants to be grown within the garden (PCA 2020). The south-east boundary wall is noted in the report to be in a poor condition due to stability issues caused by nearby tree roots. Modern brick buttress had been constructed to hold up the western part of the wall. The boundary between the walled garden and Penshaw House is formed out of a low c.19th century ashlar stone wall with later 20th century steel railings. It has been suggested that the steel railings were installed to replace the original railings which could have been removed in the Second World War. Located in the north-west corner of the garden, there is a cast-iron gate and gate posts which could be remnants of earlier metal works.

East Denton Hall chapel was removed and installed at 26 West Avenue. The chapel was moved as the Bishop’s residence was moved from East Denton Hall which had been the Bishop’s House since 1942, to West Avenue

A member of the public reported that his father worked at what was Self's Garage opposite the Denton Hotel in the 1950s, and had said that during works to build bigger premises they uncovered a ‘tiled well’, but it was covered up so that work could continue.

This possible enclosure was identified from Google Earth Pro aerial photography by a desk based assessment in 2021 (event 5162 report 2021/31). It appears as a darker cropmark suggesting a ditch. It is square in shape and measures approximately 30m across. The edges are aligned with the ploughing regime of the field which may indicate a modern agricultural origin.