I don’t know what you mean by fully furnished house?
I think that’ll be very helpful for the enviornment if everyone lives with only the basic necessities (only one washing machine, one PC or laptop, one fridge small etc) but having basic necessities in your house and having decorations made of silver and gold are incompareable.
There are more than few mosques where pure gold has been used.
27 Worlds Most Amazing Mosques - Part 1
Besides when it comes to housing, I don’t think if a comfortable or enjoyable house and lifestyle has been condemned by anyone.