Modernization of 1901 Market Street


The Riff Group provided General Construction & Furniture Installation services on the 850,000 square foot award winning modernization of 1901 Market Street. The 45 story fully occupied center city office tower was constructed in 1989 and required complete modernization of the antiquated facility and furnishings.  The project included multiple construction phases completed over a four year construction period. Highlights of the project included the BOMA TOBY award winning main lobby & corporate dining facility renovation.  Particular features of interest included the Market Street frontage expansion at the ground and fourth floors highlighted by the new 5 story aluminum & glass curtain wall.  The Riff Group completed all carpentry, furniture and glass wall systems installation with our in-house craftsmen. Please click the appropriate link for video tours of our work.




Meeting & Offices


Conference Center

© 2013 | The riff group | 100 Schell Ln | Phoenixville, PA 19460 | p - 610.539.8100 | f - 610.539.8130