Cryofridge storage building, based on the ASE youtube tutorial made by CHipZz.
The template is just the building, so you can decorate the inside as you please. Pictures show an example of how I use it. There's no skins or mods and it's built on official.
To get the overhanging walls on the outside, you have to place the ceilings at the top level to get the snap points before placing the walls directly under it.