Why do you want to work from home?

"I want to work from home because it will afford me some degree of flexibility, my productivity will be increased from not having to commute, and it will give me a healthy work-life balance that will keep me happy and performing at the highest level" is a good answer to this interview question.

When answering this interview question, it is also important to inject data and facts about working from home. There has been much research into this area as of late, so you should have no problem finding some adequate sources. In most cases, remote working professionals have higher productivity levels, so make sure you bring this up in your answer.