All new buildings shall comply with the appropriate setbacks and coverages as detailed on Schedule B. In the B-1 Affordable Housing Overlay Zone or the B-2 Affordable Housing Overlay Zone, buildings with nonconforming setbacks shall be permitted upper story expansion if exclusively designed for and occupied as an inclusionary development, provided that the upper floor(s) setback is not less than the existing nonconforming building and, post-expansion, the property will comply with all coverage limitations as required in Schedule B.