305 Commonwealth was designed by architects Peabody and Stearns and built in 1884-1885 by Woodbury & Leighton. contractors and builders, and Benjamin D. Whitcomb, carpenter.
Plans for the house – including front and rear elevations, floor plans, framing plans, interior sections, and drawings of architectural details – are included in the Peabody and Stearns Collection in the Boston Public Library’s Arts Department (reference PS/MA.153).
The images below, provided courtesy of the Boston Public Library, include the front and rear elevations, floor plans, and interior sections. The original plans are fragile, stained, and in poor condition, and these images have been gently enhanced to reduce the stains and tears where possible.