Remember the bible is written in human language, for example God is EVERYWHERE like he said-
"Heaven is my throne, earth is my footstool, how can you build a house for me?"...."Do not I fill heaven and earth?" (Jer 23:24, Isaiah 66:1)
so when Jesus spoke of "my fathers house" he simply meant "paradise", not necessarily a bricks-and-mortar building.
And that "paradise" will be anything we want it to be, for example a golfer asked Billy Graham if there'll be golf courses in heaven, to which Graham replied "Yes if you want them to be".
Same with a house, if you want to live in one in paradise, that's what you'll get, something like this maybe-