An Act amending Title 53 (Municipalities Generally) of the Pennsylvania Consolidated Statutes, providing for special provisions relating to ordinances.

HB 2185 requires Pennsylvania municipalities with populations over 5,000 (or high-density areas) to allow duplex, triplex, and quadplex housing as a permitted use by right where single-family homes are allowed, without requiring additional approvals. It prohibits municipalities from applying stricter zoning, subdivision, or design rules to these multi-unit housing types than to single-family homes. Developers must demonstrate that existing infrastructure (water, sewer, roads, and emergency services) can support new developments before permits are issued. The requirements apply differently based on municipality size: duplexes for 5,000+ residents, duplexes/triplexes for 10,000+, and all three housing types for 20,000+ residents.