A flint scatter comprising up to 900 items was recovered during field-walking exercise in the early-mid 1990s. The flints included tools and cores, apparently from the Mesolithic and Neolithic periods. A They were recovered from a wide are between Brenkley and Gasrdener’s Houses, with a particular concentration around NZ 2140 7484.

An Infant School of simple, rectangular plan is shown on the 2nd edition Ordnance Survey map of 1898, but not on the 1st edition surveyed c.1855. Its position appears to be at the east end of Harras Bank, west of the entrance to Birtley Hall drive. The building also appears on subsequent editions of the Ordnance Survey plan, but is not named, suggesting that its use may have changed.

An ‘Institute’ building of L-shaped plan is shown on the 2nd edition Ordnance Survey map of 1898, but not on the 1st edition surveyed c.1855. Its position appears to be at the east end of Harras Bank, west of the entrance to Birtley Hall drive. It had been replaced by housing by the time the 3rd edition Ordnance Survey map was published in 1919.

The Moulders Arms public house is shown to the south of Birtley Old Hall on the 1st edition Ordnance Survey Map, but not on subsequent editions, so had presumably closed or been demolished by 1898.

The Birtley Brick and Tile Works occupies a substantial area on the 2nd edition Ordnance Survey Plan, the east part of the complex being occupied by a large clay extraction area, with small pond, and the west by a range of buildings extending as far as Durham Road.

Appears on the 2nd edition Ordnance Survey plan, but not on the 1st edition, suggesting that it was constructed in the period 1855-1898.

Two lodges are shown on the 1st edition Ordnance Survey map, surveyed c.1855, at the top of the drive to Birtley Hall. This one is on the east side of the entrance to the drive. It is not shown on the tithe map of 1846 so was presumably built in the period 1846-1855.

Two lodges are shown on the 1st edition Ordnance Survey map, surveyed c.1855, at the top of the drive to Birtley Hall. This one is on the south side of the modern Harras bank, west of the entrance to the drive. Whether or not it is shown on the tithe map of 1846 is unclear, but it is unlikely to pre-date the Hall, constructed in the 1820s.

Birtley Old Hall was built by John Emmerson in 1692 and demolished following a fire in 1961.

A well of supposed 19th century date was found at this location during excavations in 1995. A range of medieval structural remains, including drains were also found and interpreted as the remains of structures associated with the medieval Haymarket.