Defining which property is your main residence can sometimes be tricky. Aspects to consider when making the decision are where most of your belongings are kept and where you spend the majority of your time.
For instance, if one address is predominantly used for legal interests, is where your car is registered and is what you would consider to be the family home then your insurer will use this distinction to provide cover for your main residence. Anything outside of these situations would typically be a second home, including holiday homes and weekday/weekend properties.