House Bill No. by Representative Knox aims to enhance the regulations surrounding the renovation of public properties within historic preservation districts in Louisiana. The bill introduces a new section, R.S. 25:747, which mandates that any restoration, renovation, or construction work exceeding $200,000 on the exterior of state, parish, or municipal properties designated as landmarks or contributing rated structures must adhere to specific guidelines. These guidelines include compliance with the Department of the Interior's standards and the requirement for prior notification to local legislators and historic district commissions before commencing any project. The bill also defines "contributing rated structures" and "project" to clarify the scope of its application.

Additionally, the bill allows local historic district commissions to review and approve projects at their discretion, with a public hearing required if they choose to do so. It also provides the commission with the authority to issue stop orders or file lawsuits against projects that do not comply with the new regulations. Notably, the provisions of this bill will only apply to projects initiated after August 1, 2025, and do not cover emergency repairs aimed at preventing further damage to historic structures.