1. The commission may make mortgage loans for the construction and rehabilitation of such residential housing as in the judgment of the commission has promise of supplying well-planned, well-designed housing for low and moderate income persons or families in locations where there is a need for such housing. Such loans may include interim as well as permanent loans, and the housing may include ancillary commercial and other appurtenant facilities to the extent permitted by applicable commission regulations.

2. The commission may make loans to approved mortgagors which may develop and operate residential housing projects under sections 215.010 to 215.250 on a rental, cooperative or condominium basis.

3. The commission may make or purchase low interest loans to approved mortgagors in connection with weatherization of single family and multifamily dwellings.

4. The commission shall establish a program to make loans to approved mortgagors for the purchase and development of owner-occupied multiunit dwellings of not more than four units and other residential rental property located within one-fourth of a mile from the residence of the owner of such residential rental property.

5. All single family and multifamily dwellings constructed under section 215.030 shall be built according to weatherization standards established by the Missouri housing development commission in consultation with the department of natural resources.