I have two DSC (boy 13, girl 9), DS4 and one on the way. We think the baby is a girl. Currently we live in a 4 bed terrace in london with DSC sharing a room and DS in the smallest bedroom. The other bedroom is used as an office as both DH and I work from home extensively. We have considered a loft conversion to put the office in there but money is tight and ultimately I wonder if we will need another bedroom anyway as DSC won't want to share? Do others have DSC of mixed genders sharing? Now that DSS is 13 I'm wondering if it's really appropriate?