Outside the front of the house are Grade II* listed wrought-iron railings that feature the intertwining initials of Harle and his wife Mary.

The close proximity of the commercial and domestic buildings is described by the National Trust as "significant because it seems to be a rare survival of a practice which was once widespread".

A 2011 Heritage Scoping Study noted that the main building should be reviewed, stating that "it is one of the finest and best-preserved examples in England of a medium-sized early Georgian merchant’s house" with the National Trust receiving credit for their work on maintaining the property.

[12] Ten years later, after transferring the responsibility for the sailing ventures to a cousin, he purchased the Rainham property, including the wharf.

[16] Two brothers who had lived at Rainham as tenants, Edward and Octavius Daldy, purchased the property in 1887, and in the meantime sub-let the hall while running the wharf business.

[20] Sturges extended the living space upwards, creating attic rooms in order to accommodate his family of 6 children.

The house was upgraded for modern safety standards, as well as restoration of various elements of the historic décor to reflect the complex history.

[29] In 2013, a team of archaeologists conducted a dig in the gardens, turning up ceramic, glass and brass artefacts, as well as discovering an unusual planting border constructed of animal bones.

[30] The house opened for visitors in October 2015, showcasing the decorative elements applied by tenants throughout the years and items found under the floorboards as a means of illustrating its history.

[31] In 2019, Rainham Hall was used as a filming location for the BBC adaptation of A Christmas Carol, with both the interior and exterior used to create the home of Ebeneezer Scrooge.

[32] That same year, an exhibition on the career of Anthony Denney was held in the house, showcasing his work in both interior design as well as photography.

[33] The house now contains a series of four exhibitions reflecting on its owners and history, including Nicholas Brady, the day nursery, Anthony Denney and John Harle.