"New Jersey Housing Opportunity Act"; enhances opportunities for housing production.

This bill requires New Jersey municipalities to revise zoning rules within four months of enactment to increase housing options. It mandates that each town adopt one of three specific changes: allow single-family homes on lots as small as 0.25 acres, permit two-unit homes in single-family zones, or allow accessory dwelling units (ADUs) - small secondary homes with full living facilities on the same lot as a primary residence. Municipalities failing to comply will automatically adopt the 0.25-acre minimum lot size requirement. The rules do not apply to historic districts or properties with pre-existing development restrictions. This aims to expand housing choices in existing residential areas without altering historic protections or prior agreements.