![](https://pbs.twimg.com/media/EJ9bru0U0AAWWJS.png)
- No stairs/hallways/elevators.
- Lower structural costs.
- No crane needed.
- More compact floorplans since homes have windows on both sides.
- Faster to build.
- Each unit cheap enough to be built without bank loan.
5/
![](https://pbs.twimg.com/media/EJ9jY8LUwAAsl2B.jpg)
Image by Jennvirskus, commons.wikimedia.org/wiki/File:Exam… 9/
![](https://pbs.twimg.com/media/EJ9j5fRUUAAFbL8.jpg)