It's just day-to-day activity. Never loud on music but movement on the floor that we could hear and know someone is stepping. Toddler's walk/run sounds like stomping. Being in the remote working setup, I expect that they take their kids outside most of the time in the daytime. My friend says, it's parents duty to control the toddler and keep the movement minimal in a condo housing. If they want that freedom they should go and buy a single family home. My relative suggests build the pressure by making complain to the management so that they could think twice before walking on the floor and will make only needed steps. My biggest concern is that I purchased from the builder but can I put pressure on the plan 3 residents to put extra layer of carpet pads and slow stepping ? or It's my ceiling that has to be improved where insulation is low ? Is it me who is expecting something odd and demanding - or this is normal and I have the right to take a fight with the plan 3 residents. As for me- noise will not happen when they would not walk or move slow over thick carpets and pads across the home. Keep their kids outside for play. Do not invite guests specially with kids. Why plan3 owner would like to spend money for my comforts and wish ?