Sofia and Lucas' family has built a new house, and they have invited the club to a housewarming party! But first Sofia and Lucas are going to explain the building process to their friends, step by step. Share the excitement as the Junior Engineers Club gets a firsthand look at how a house is built.

Includes index.

Junior Engineers' Club -- House design -- Construction -- Finishing touches -- Houses built in amazing ways -- Machinery and tools to build a house.