This licence was revoked
The licence to fortify this castle, granted in 1199, was withdrawn before completion. King writes "Richard Malebisse was given a licence by King John, which was revoked at the request of the citizens of York, to whom such a castle appeared as a threat. The chronicler [Hoveden] is obviously telling the truth, for Richard had acquired an interest in Wheldrake, being licensed to plough up ('frussiare ad cultur') part of the forest there (Rot. Chart., 42b). This is the only licence in the rolls, and John's licence to crenellate was clearly verbal. It does not at all follow that Richard wished to fortify the Stephanic site. See also Holt, The Northerns (Oxford, 1961) 161, n7. Richard, as keeper of the forest of Galtres, had misappropriated 250 of the King's oaks to build his castle. It does not follow that he had actually used them; he had also been selling a lot of the King's timber.
Original source is
(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.)
Significant later source are;
More details about licences to crenellate can be found here.
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