This mansion is built in a custom swamp terrain which is actually a small island in a big ocean. The area surrounding the mansion includes custom objects such as huge trees. It’s great to use as a survival map in case you want to live somewhere more fancy than your ordinary dirt house to survive the first night.
The house is a modern mansion with a lot of smart redstone contraptions. These systems have been put in place to keep out possible intruders, but also to make it more convenient for the house owner.