Capt Douglas
There are no mandatory take-off minima for non-commercial flights in the UK, though there is a recommendation to use the commercial ones.
See AIP AD 1.1.2 paras 1.4 and 4.1
EricTheRed
AIP AD 1.1 11 refers to airports without published IAPs. If the airport has published IAPs, the operating minima (for landing) are mandatory for all flights (ANO Art 40).