* Tense: The sentence is in the present tense, suggesting a regular or ongoing action. It's more natural to say "He is touring the house" if you're talking about an action happening now.
* Clarity: "Tours" could be interpreted as a job or something he does regularly. "Is touring" is clearer if you're talking about a single instance.
Here are some alternative ways to phrase the sentence:
* He is touring the house. (Clearer if it's happening now)
* He toured the house. (Past tense, if he already finished touring)
* He's giving a tour of the house. (More specific about the action)
It really depends on the context of what you're trying to say!