We have now spent a 40th birthday and a 50th birthday at The Old Church Byron Bay (but actually at Newrybar in hinterland outside Byron. It comfortably sleeps 10 adults all with their own sleeping space (albeit 1 couple on a mezzanine floor). It sleeps more but you wouldn't bother. The set up is great with 3 toilets and showers. The converted church part is absolutely gorgeous and a great setting for some huge dinner parties. The heating is great but sadly no fire place - great gas heater instead (same effect, less mess and work). The kitchen has absolutely EVERYTHING you could need and the set up of glasses means the place was designed with partying in mind. Corner stall is great but don't rely on it for bottle shop supplies (limited). Harvest Restaurant /Deli nearby and looks fabulous. We loved cooking there though, it was relaxing and well equipped. Photos on website do the place justice.