[2] Historian Anthony Emery suggests that the design may have been influenced by that at Ashby de la Zouch Castle, rebuilt in 1464 by Lord Hastings.

[3] The tower suffered a serious fire in 1602 but after repairs remained in use; the historian Anthony Emery states that the tower was in use until the end of the 17th century, but the historian Roy Palmer states that William Coward and his sister Agnes Wheeler lived there at the end of the 18th century.

[4] One of the walls of the tower collapsed around 1900, and as of 2014, English Heritage considered that the condition of the castle was very bad, and that urgent works were required.

[5] Arnside Tower is a Scheduled Monument and Grade II* listed building.

The local tourist board recommends that good views of the tower can be seen from the public footpath which runs alongside.