In May of 1912, architect G. Henri Desmond was retained by Israel Ratshesky to design the remodeling of 347 Commonwealth, which the Ratsheskys had acquired in January of that year.
The exterior work was limited to the addition or replacement of iron work and windows. The changes are shown on the drawings of the front and rear elevations, to the right .
The interior remodeling was extensive, and included reconfiguring rooms, installing new bathrooms, and making other alterations. For example, a comparison of the second floor plan with the original floor plan filed with the final building inspection report shows that the two rooms at the rear, originally a chamber and den, were combined into a library running the entire width of the building.
The remodeling also may have included the installation of electric lighting for the first time. The plans for the fourth floor note that there are both combination gas and electric fixtures and all-electric fixtures.
These scans of the plans are provided courtesy of the Boston Public Library Arts Department. The originals of the blueprints are located in the Arts Department’s City of Boston Blueprints Collection (reference BIN A-29).