Doublehouse
Double houses produce money.
As the people prefer to live in neighbourhoods that are neither too big nor too small,
you can achieve the best results by placing 3 adjacent houses.
Nerdy Details
$$x = (\frac{-|h-3|+3}{2/3}+0.5)*b$$h: Sum of all house tiles und double house tiles in the direct neighborhoodb: Strongest boost tile boost in radius 3x: Production rate