"Thistle Pit" shown on 18th century "Plan of Heaton Estate". Grid ref is approximate. The Thistle Pit was won in 1736. It used the pillar and stall method of working which was common practice in Northumberland and Durham. The Heaton Colliery was managed by John Bullock until 1733 when he was succeeded by Nicholas Walton. Pit had been sealed and planted over with trees by 1815.

"Knab Pit" shown on 18th century "Plan of Heaton Estate". Grid ref is approximate. A 1733 drawing of the engine used to drain the Knab Pit shows that it was much more sophisticated than the early coffee pot type used at Tanfield. Pit had been sealed and planted over with trees by 1815.

Three "engines" shown on 18th century "Plan of Heaton Estate". Grid ref is approximate. Engine Pit named in this area on the Plan of Heaton Royalty in Turnbull's book. A 1733 drawing of the engine used to drain the Knab Pit shows that it was much more sophisticated than the early coffee pot type used at Tanfield. The engine house is a large, two stories, building housing an engine with 42 inch cylinders and a seven foot stroke which was capable of ten strokes a minute and drawing 11,550 gallons of water an hour. Richard Ridley later bought the engines from the Grand Allies and operated the colliery, or at least the pumps for another decade.

Bunker Hill is a colliery hamlet in the Newbottle township chiefly inhabited by the workmen employed in the adjoining collieries. Whelan's Directory of 1856 lists Robert P. Clark, mechanical engineer, Richard Heckels, colliery viewer, William Livingston, land steward to Lord Durham and John Stokoe, inspector of railways {1}. Also mentioned in Whellan's Directories of 1865 and 1894 {2 and 3}. The earliest reference so far found is on the map accompanying the Newbottle Tithe Award, 1839 (Durham Record Office D/X 755/7), which also shows the fields around Bunker Hill. The owner is listed as David Nesham esq. and the occupier as the Earl of Durham. One can guess that the Earl leased all or part of a farm in the Newbottle parish in order to construct his railway, build houses for his workers and exploit the coal deposits. It seems possible that he acquired the land later, though even this is not clear. Perhaps the buildings on the west side of the lane were fairly grand houses for the people named in the directories, and the brick buildings on the east side, some early19th century but most late, began as colliery housing, and only later were adapted for farm purposes {4}. There are the remains of a farm on the east side of a north to south lane. There is a house at the NW corner and another at the SW. Both are heavily rendered and quite unremarkable. Between them is a west-facing yard surrounded by almost entirely brick buildings of the 19th century and C20. North side, west half. Single storey, pantiled roof. In three sections. For livestock. North side, east half, east side and south side. Two storey brick, the upper an addition, slate roofs. In the upper storey of each range there is a hoist, and windows with vertical bars. In the lower storey the openings etc. have been much altered. Behind the north range there is a large lean-to covered area with wall troughs - for livestock. Behind the south range there has been a similar arrangement, now largely burnt and deroofed. Also a small range of brick looseboxes. The only building which could be earlier is the remnant of a small stone structure with hipped pantile roof at the west end of the south range. On the west side of the lane is a large open space surrounded by trees. The modern OS map indicates there were farm buildings here, and the 1st edition suggests these included a gingang. In addition there are traces of a demolished building south of the farm - colliery offices, dismantled part of the Lambton Railway, disused brick sub-station and disused brick stables {5}.

Small brick building with small segmental headed and barred openings. Single storey {1}.

Coast Road on stone arch over Park Ravine. Quality architecture {1}. When Sir Hedworth Williamson donated land to Sunderland Corporation for Roker Park in 1880, this was on the condition that the Corporation built a road bridge to span the ravine to open up Williamson's lands to the north for development. The bridge and park opened in 1880 and served as the nucleus around which the late Victorian and Edwardian suburb developed. The bridge is an impressive sandstone structure especially when viewed from lower ground as one passes from the beach to the park.

Bandstand. C1880. Cast-iron structure and ornamental railings with wood base and metal-covered roof with central cupola and spiked iron finial. Octagonal. Corniced base has panelled patterns on sides. Slender columns support ornamental arch braces and patterned beams. Scalloped edges to tiers of roof covering {1}. The present structure replaced the original uncovered stand in 1904.

Blacksmith's shop. Late C18. Coursed squared sandstone and brick. Pantiled roof. 1 storey. Dutch door left. Yorkshire sliding sash with vertical glazing bars and external shutters. Low offshoot to rear. One end brick chimney. Interior – a complete working smithy with hood and fire and anvil. It provides a connection to the pre industrial agricultural past of Hetton and surrounding areas. Most surviving smithies date from the mid-late 19th century so this example is exceptional as it is thought to date from the 1790s. It contains an historical collection of blacksmithing tools and products. The building was restored in 2014 and was in the final 4 shortlist for the best rescue of a historic, industrial building in the 2014 English Heritage Angel Awards.

At Fulwell Quarry (SMR 2680), source of 'cannonball limestone' is a long range of very attractive lime kilns. There are three long oval kilns with three or four openings. The stonework, of magnesian limestone, has vertical recessed panels on the vertical face, one above each opening. The access openings have been partly concealed at their base by waste tipping, and the kilns probably date from the second half of the 18th century {2}. Further lime kilns at NZ 392 596 (SMR 2695).
NB the grid reference for this entry corresponds with 'Old Limekilns' shown on the Ordnance Survey First Edition map of 1862, however these are not shown on subsequent maps and do not appear to be extant. From the Ordnance Survey Second Edition map of 1896, a set of three 'Limekilns' are shown at NZ 38852 60022, shown as 'Old Limekilns' on the 1946 map. The description above seems more likely to apply to these, however they also do not appear to be extant.

Site of waddlefan {1}.