Prequel:
The Magnificent Residence is currently the most expensive building and it is also strong sink for highend resources.
The problem:
Unfortunately, it is not the most space-efficient building (125 settlers per size of a Frozen Manor for a total of 500 using the space of 4 Manors), so it is widely ignored by people who have the resources required to obtain it and most wealthy players who have these Residences go over to sell them in favour of Frozen Manors - which is a pity for an epic item!
Solution:
Let us upgrade the Magnificent Residence to the point where every player's dream would be to have a level 5 Magnificient Residence on their island.
Suggestion:
Let the Heroic Little Tailor, the "grand finale" of the Fairytales adventures, award a new item called "Magnificent Bricks" in the slot where other Fairytales currently drop followup adventures.
The Magnificient Bricks could be used to upgrade the Magnificient Residence as follows:
Level 2: 1000 Beanstalks + 1 Magnificient Bricks (+75 Settlers = 575 total)
Level 3: 2000 Beanstalks + 3 Magnificient Bricks (+75 Settlers = 650 total)
Level 4: 3000 Beanstalks + 5 Magnificient Bricks (+75 Settlers = 725 total)
Level 5: 5000 Beanstalks + 7 Magnificient Bricks (+75 Settlers = 800 total)