The Gatehouse website record of a licence to crenellate for Elslack Hall granted on 1318 Nov 24

In 1318 Nov 24, Godefridus de Alta Ripa (Godfrey Hauterive) was granted, by Edward II, (In year 12 of his reign) a Royal licence to crenellate Elslake in Craven [Estlake] (Elslack Hall)

Granted at York. Grant by King, on the information of Bartholomew de Badelesmere.

Original source is;

Lyte, H.C. Maxwell (ed), 1903, Calendar of Patent Rolls (1317-21) p. 242 online copy

(In fact, the original source given is usually a transcription/translation of what are precious medieval documents not readily availably. It should be noted that these transcription/translations often date to the nineteenth or early twentieth centuries and that unwitting bias of transcribers may affect the translation. Care should also be taken to avoid giving modern meaning to the medieval use of certain stock words and terms. Licentia is best translated as 'freedom to' not 'permission'.)

Significant later sources are;

Emery, Anthony, 1996, Greater Medieval Houses Vol. 1 (Cambridge) p. 421
King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol. 2 p. 540n128
Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol. 3 part 2 p. 407 online copy

a flourishing family of Yorkshiremen, holding of the Percy Fee in Craven, bore the name of De Alta Ripa, and remained till the time of Henry VI. Their fortunes were founded by two-coheiresses, Anne and Matilda de Carleton, who about 1235 married two brothers, Sir Geoffrey and Sir Ralph de Alta Ripa. Sir Geoffrey purchased the latter's share of Carleton and Lothersdene; and in the next generation Sir Thomas married Preciosa de Marton, who inherited Elslack from her grandfather, Ralph Darrel. Their son Geoffrey had license in 1318 "to kernel and embattle his house at Elslack-in-Craven, a hamlet dependent upon Broughton,(151) of which, as we find in Kirkby's Inquest, he was joint-Lord. "Of the embattled house of the Alta Ripas (if they ever availed themselves of their license to embattle) there are now no appearances; a few lancet windows may possibly be of that period."—Whitaker's Craven. The last heirs-male were Geoffrey's grandsons, who each left a daughter; and the estate "went, as it came, through two females." (Cleveland, 1889)

Badlesmere was one of the king's chief councillors and lieutenants and had just been appointed steward of the royal household in November 1318. His association with Godfrey Hauterive (the family has many variant names such as Dautry, Dawtry etc.) presumably came through his Kent connections. The Hauterive's seem to have had most of their possessions in Sussex.

Biographical source include;

Duchess of Cleveland, 1889, 'Dauntre' The Battle Abbey Roll Vol. 1 online copy