Revises the allocation of money available for making loans from the residential housing infrastructure assistance revolving fund. Adds requirements regarding the location of impact zones designated by a county, city, or town (unit) after June 30, 2026. Requires a unit to approve a project that complies with the legal restrictions in effect on the date the project's permit application is submitted. After December 31, 2026, restricts a unit's ability to impose and increase fees related to building approvals and permits. Delays the implementation of building permit increases to 180 days after publication of the ordinance. Beginning January 1, 2027, requires a unit to annually report the unit's housing status to the Indiana housing and community development authority. Requires the department of environmental management to review and update its Indiana Storm Water Quality Manual not later than December 1, 2026. Prohibits the state or local government from requiring a person intending to fill land in a flood plain to provide compensatory storage at a ratio greater than three (mitigated land) to one (filled land). Requires a unit to forfeit or refund regulatory fees if the unit fails to meet statutory deadlines for issuing a Class 2 building permit. After June 30, 2026, prohibits a state agency or political subdivision from requiring the installation of the following: (1) An arc-fault circuit interrupter in Class 2 structure or structure classified as an R-2 building occupancy classification. (2) An emergency responder communications enhancement system in a Class 1 structure. Repeals a provision that would have reinstated on July 1, 2027, the statute in effect before its amendment in the 2023 regular session of the general assembly setting forth the authorization and procedures for establishing a residential housing development program (program). Amends the current statute for establishing a program to provide that a program terminates: (1) 25 years (instead of 20 years) after the date on which the first obligation was incurred to pay principal and interest on obligations payable from tax increment revenues from the program; or (2) on the date on which the bond obligations or lease rentals are satisfied. Requires a unit not later than January 1, 2027 to: (1) review its unified development ordinance in a public hearing with the purpose of increasing housing development; and (2) report to the executive director of legislative services agency. Urges assignment of the topic of housing developments by religious institutions to an interim study committee. Resolves conflicts for IC 36-2-4-8, which was amended by both P.L.22-2021 and P.L.152-2021. Increases the average construction cost allowable for certain housing projects to be completed by a housing authority. Provides that bonds, notes, or warrants of a housing authority may be sold at less than par value at a negotiated sale.