What house is it that gives you the team rocket disguise?

The team Rocket disguise in Pokemon games is not associated with a specific house. It's a special item called the Disguise Kit that you obtain from Giovanni after defeating him at Silph Co. in Pokemon Red, Blue, and Yellow.

Once equipped, this item allows your character to transform into a Team Rocket Grunt, allowing you to infiltrate their base and carry out certain missions.

So, there's no "Team Rocket house" in the traditional sense.