Massachusetts State Building Code existingThis is an overview of the Massachusetts State Building Code requirements regarding work on a large existing building. Essentially, the first step for work is an investigation and evaluation,
and a report by an engineer or architect even if the building is simply being reoccupied after a period of disuse.
Massachusetts Building Existing Building Code, Chapter 34
101.5.4.0 Investigation and Evaluation. For any proposed work regulated by this code and subject to 780 CMR, section 107, as a condition of the issuance of a permit the building owner
shall cause the existing building (or portion thereof) to be investigated and evaluated in accordance with the provisions of this code. The investigation and evaluation shall be in
sufficient detail to ascertain the effects of the proposed work on at least these systems: structural, means of egress, fire protection, energy conservation, lighting, hazardous materials,
and ventilation for the space under consideration and, where necessary, the entire building or structure and its foundation if impacted by the proposed work. The results of the investigation
and evaluation, along with any proposed compliance alternatives, shall be submitted to the building official in written report form.
Section 107 requires that a registered design professional (architect or engineer) do the work;
All plans, computations and specifications involving new construction, alterations, repairs, expansions or additions or change in use or occupancy of existing buildings shall be prepared
by or under the direct supervision of a registered design professional and shall bear his or her signature and seal (see Section 107.1.1). Said signature and seal shall signify that
the plans, computations and specifications meet the applicable provisions of this code and accepted engineering practices. Any alternative means and methods which deviate from prescriptive
requirements of this code shall be submitted to the building official for approval in a narrative form separate from the plans.