Sydney Same sex wedding venue November 2018 catering to young families?

Hi everyone - we are a same sex couple with three young children ranging from 3-6 years old. We also have lots of friends with young children who live in and around inner sydney. We would love a venue that would cater to us and ideally somewhere that also had accomodation so that the little ones could be put to bed and looked after by relatives or babysitters while the parents stayed at the reception. Many thanks