National Register of Historic Places
Rohm and Haas Corporate Headquarters
Philadelphia, Philadelphia County, Pennsylvania
The record
- Listed
- February 9, 2007
- Type
- Building
- Address
- 100 Independence Mall West, Philadelphia
- County
- Philadelphia
- State
- Pennsylvania
- Period of significance
- 1950 to 1974
- Contributing resources
- 1 building
- Coordinates
- 39.95037, -75.15095
- Reference number
- 07000031
Slide toward Today to fade the historical sheet and see the modern map underneath.
USGS Historical Topographic Map CollectionUSGS Historical Topographic Map CollectionDavid Rumsey Map Collection, Stanford LibrariesUniversity Library, Vrije Universiteit Amsterdam
The story
Written by AI from this property's National Register nomination and the record above; every sentence is checked against its sources before it appears here. Corrections: privacy@treealive.com
The Rohm and Haas Corporate Headquarters is a nine-story reinforced concrete building at 100 Independence Mall West in Philadelphia, built from 1963 to 1965 in the Modern Movement style. The nomination names Pietro Belluschi as architect and the George M. Ewing Company as builder.
Why it's listed
It was listed in the National Register in 2007 under criterion C, with national-level significance in architecture from 1963 to 1965, a period that opens with the 1963 ground breaking and closes with the building's completion in 1965.
Physical character
The walls combine reinforced concrete, aluminum and Plexiglas over a reinforced concrete foundation and full basement, and the roof is synthetic. The design is an inverted pyramid, with a colonnade of prismoidal reinforced concrete columns, balcony-like slabs and anodized aluminum windows. In the 1980s the interior received new floor treatments and wall coverings and the stair gained side walls, and the cafeteria was renovated in 1987.
Historical context
Ground breaking was held on April 15, 1963, and a dedication ceremony followed in 1965, when Rohm and Haas moved into the new building. It served as the company's corporate headquarters from 1965, and when listed it was still used for business.