The GTE House (also called the telephone house) is a building next to Marcus' House. The building was owned by GTE Phone company until they merged with Verizon. Exactly what is in the building is unknown. Once a day, Verizon vans and trucks come to the building, stay for an hour, then leave. Adam, Marcus and Liam have tried to break in, but have never been successful. They have also thrown various things up on the roof including bottles and phonebooks. Because of this, a "No Trespassing" sign appeared on the building.

The building has bushes that act as a fence to separate it from Marcus' House, and are also used for Bush Jumping.