1 character?  No

But you can make or purchase extra houseparts to make it hold more.  Each housepart adds 1kg of space to your house.  

Be warned that whether you make your own, or buy premade, it will cost you a pretty penny.

The recipe for this can be found at www.larkinorguide.com

And no, I am not talented enough for it to show a link.

thanks that helps