101 Walnut Condominiums

101 Walnut Condominiums

101 Walnut Condominiums

101 Walnut Condominiums is a 12-story luxury condominium building with floor areas of approximately 3,000-sf.  The building frame is constructed entirely of cast-in-place reinforced concrete. Each unit, which consists of an entire floor, has two private balconies that extend approximately 12-feet from the interior of the building on the southeast and southwest corners of the building, providing unobstructed views of both the entire riverscape, as well as Philadelphia’s Center City skyline. Pennoni provided complete structural engineering services for the building.



Transforming communities for more than 55 years

Throughout five decades, our commitment to elevating the impact of our outcomes through personalized service has been steadfast. We have the flexibility to be innovative in our approach with the integrity to get things right.

We approach the start of every project as the beginning of a collaboration because we understand the value of partnership. As a multidisciplinary firm, Pennoni has the ability to approach engineering challenges from a wider spectrum of angles than most. From land development to energy management, our expertise runs deep and our passion for problem-solving runs even deeper.

Evolving Capabilities

Ever-expanding with growing businesses

55+ Years Experience

meets flexibility

40+ offices

40+ Offices

Local Partners, National Possibilities

1,300+ people

1,400+ People