Hi guys, need some help here. i couldnt find a castaway thread in PsP hence im posting here. i hope the gameplays are the same.

my question is, is it possible to demolish a cabin and rebuild a new one? as in when you upgrade, it is usually because ure headin over to a new island,abandone the old 1, but for my case, im at the 3rd island and ive establish myself on the volcano outlook with a cabin but now that i could build a compact bungalow, it says that ive build the max things allowed and i need to remove some in order to build more.
Ive even tried deleting the roof,walls,window, etc etc manually one by one but still got stucked with that message.
i could find a "demolish" option or anything related (mayb its hidden?) hence the manual removing part.

is this a glitch? does it only apply to psp castaway?
any kind of help or advice would be greatly appreciated
thanx and have a nice day guys