relative to multi-family and mixed-use development in commercially zoned areas.

This bill requires New Hampshire municipalities to permit multi-family housing (like apartment buildings) on land currently zoned for commercial use (e.g., stores or offices), provided adequate infrastructure (roads, water, sewage) exists. It also allows towns to mandate ground-floor retail space in new mixed-use developments and block residential use in industrial zones where impacts like noise or pollution might occur. Municipalities can convert existing nonconforming buildings (e.g., outdated structures) to housing without making them more nonconforming. Implementation costs are estimated to be minimal, under $10,000 per municipality.