Spurs ahave agreed a fee with the Canaries for the sale of the 24-year-old Republic of Ireland international centre-back/centre-forward.
"I'm pleased that the two clubs have reached this agreement," Norwich boss Nigel Worthington told his clubs official website. "With the player currently away on international duty the next step will take place Thursday. "I'm very much looking forward to Gary arriving in Norwich and hopefully we will be able to complete the deal on Thursday, then he can have his medical."