When Jesus spoke of the Father’s house He was referring to Himself. God the Father dwells in His fullness in Christ. Christ is the only true and eternal House of God. Christ is not bringing us to beautiful homes in Heaven, He is bringing us to rest in the Father. It is the same rest Jesus enjoys—God resting in Him and He in God.
In my Father’s house are many mansions: if it were not so, I would have told you. I go to prepare a place for you. John 14:2
Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him. John 14:23