Hmm, maybe we could have a "housing credit" market system. For every office building with n workers, require housing for some % of n within the local area. Then

Hmm, maybe we could have a "housing credit" market system. For every office building with n workers, require housing for some % of n within the local area. Then the credits would be priced according to the imbalance between residential and commercial construction. Excess housing around? (Hah.) Well the residential builders will have to pay the commercial builders!