Relating to a deadline within which to act upon an application for a building permit.

Requires the Department of Consumer and Business Services, a municipality, a building official or any other agency or official responsible for administering and enforcing the state building code to approve and issue, or disapprove and deny, any application for a building permit for middle housing or conventional single-family residential housing in a residential subdivision with more than six lots not later than 45 business days after the date on which the applicant submits a complete application. Requires any other agency or jurisdiction that must review an application for a building permit to complete the review within 10 business days after receipt or the portion of the application that is subject to the review is approved. Declares that an application for a building permit is approved if the department, a municipality, a building official or any other agency or official fails to deny or act upon the application within the allowable period. Requires prompt issuance of the building permit in such circumstances. Makes the department, municipality, building official or other agency or official that fails to promptly issue the building permit liable to the applicant for the fees the applicant paid and the costs the applicant incurred in preparing the application.