Some things you will want to keep in mind when upsizing:
Increase in expenses: So the biggest and of course most commonly thought about will be the increase in expenses, be sure to account not only for your increase in mortgage payments but also maintenance and property tax as these costs would typically be higher as well
Space requirements: Make sure the layout will suit your future needs and accounting for all additional furniture that may be needed as a result
Buyer or selling first?: This is an important decision to make and should be determined based strongly on the market conditions at the time.
Upsizing of course is an exciting process but can be costly so it’s best to be adequately prepared and do your research!