UK-tax on house in the USA

[NonDom41]

I own a house in the USA. A foreigner like me who owns a property in the USA is subject to high US inheritance tax (only $60,000 allowance). In order to bring down these taxes for my son when I die, I have arranged the following:

I gift him a part of the house in the value of $15,000.00 every year. This amount is the annual US-gift allowance. Depending on how long I live this will decrease the taxable house value over time in terms of inheritance tax. This procedure has been approved by the IRS in the USA. However, how is this treated by HMRC in the UK?

A) Is there CGT due? I do not think so because the UK-CGT allowance is GBP 11,700 which is higher than the above $ 15,000.00.

B) However, how about UK-gift tax or any other taxes (income tax?) If at all, gift tax would only be due if I were to die before the 7-year time period elapses, correct?

Can anyone help?