MARS Sky House fits on 512, 3 prim

MARS Sky House fits on a standard 512 sq. m (16x32). 15.5 m diameter. Low 3 prim. Door is phantom so you just fly through it. After you place the sky house make a landmark for easy access. Copy / modify, so you can size it as desired. Unfurnished add what you like. Door is invisible on the inside, acts like a window, you can see out , but they can't see in.