ACO PreservationWorks! 2014, two site reviews provided free:

Scott McNeely, Structural Engineer: Building could be a successful renovation candidate with major reconstruction of the rear of the building from the third floor to roof. Ground and second floor appear quite sound. A fourth floor or mezzanine would provide lateral support to third floor walls - with exterior fire escape to double as bracing.

Scott Bailey of ERA Architects: building, is unoccupied but designated, and secured against vandalism and the elements. Owner’s intention was to renovate, convert upper floors into condominium units (requiring window openings on north and east sides). Façade provides the primary heritage character; it appears to be structurally sound and should be conserved. January 3-7, 2024, still designated. Henderson Building demolished.

For more see: Left to rot by Mark Rashotte: The Story of the Henderson Building in Belleville, Alex Wideman, December 1 2023 (Also demolished in 2024: Belleville’s “Coleman Castle” built c1872.)