Discipline and decorum is something that should have been ingrained within the individual, during his or her formative years as a child and later on as an adult. If that does not take place, and if such people come to work, they spread their indiscipline and behaviour amongst other people. Consequently, the whole office will be chaotic. Whosoever incharge of the organisation, they need to call all the people to assemble and explain to them the benefits of being disciplined and organised. You can give a futuristic date... not far off, may be from first of next month.... and inform them that attendance, punctuality will be monitored and maintained. As regards noisy or chaotic office, that should be handled forthwith, without a time frame. Above all, unless the top management walk the talk, that is they themselves come to the office on time,, rather before time, that will be a good example for others to emulate. When the boss walks in at 11 am, then one cannot expect discipline in the office. Everything should percolate from the top, ultimately, because as they say ' bottle-neck for the bottle is always at the top' !!!
You can even organise for a training programme on corporate or business etiquettes, punctuality, discipline etc. to guide them. Those who do not correct or change themselves, despite so much of advice and training, can be shown the door,without any emotion or softer approach !
Best wishes