Tensei Shachiku no Cheat Saien ~Ban'nou Skill to Benri na Tsukaima Yousei wo Kushishitetara, Kidzukeba Tairiku Ichi no Seisan Kyoten ga Dekiteita~ - …

[MangaDex]

 

[welcome2atlantis]

Nobody in town complained about strange buildings sprouting all over?

 

[EchoGirl]

Nobody in town complained about strange buildings sprouting all over?

Doesn't he own the land and the magic expanding island the dragon mother have him?

 

[TiJoTo]

Nobody in town complained about strange buildings sprouting all over?

When your not on the island the only thing visible is a small bare floating island.
I do wonder where he parked it though as he ended the land rental after getting it.