Ellen S. Prantl reflects on 40 years of architecture and mentorship

Philadelphia architect and educator Ellen S. Prantl is being highlighted by Influential Women for a career that has spanned design, sustainability, technology and teaching. Her story underscores how perseverance, integrity and mentorship have shaped her work and her message to the next generation of women in architecture.

Why it matters: - Ellen S. Prantl’s career shows how long-term influence in architecture can extend beyond project work into teaching, mentorship and professional advocacy. - Her experience also reflects the barriers women have faced in architecture and the value of persistence, integrity and support networks in moving the field forward. - Prantl’s story lands as architecture continues to value sustainable design, digital tools and stronger pathways for women entering the profession.

What happened: - Influential Women spotlighted Prantl, a Philadelphia-based architect, educator and longtime professional leader. - Prantl is reflecting on a career that spans more than four decades in architecture, planning, education and professional service. - Prantl retired from full-time practice in April 2025 but continues teaching as an Associate Professor at Thomas Jefferson University. - Prantl has also taught at Temple University and spent about two decades in the Community College of Philadelphia’s Design and Construction program.

The details: - Prantl most recently served as Architecture Lead and Senior Project Architect Planner at Jacobs, where she worked for about 20 years on complex, multidisciplinary projects. - Her work has included architecture, planning, sustainability and Building Information Modeling, or BIM. - Prantl holds the LEED AP BD+C credential, which aligns with her interest in environmentally responsible design. - Prantl began her architectural path in 1980 after coming to the United States to study. - She originally told her family she was coming to the U.S. to become a teacher, but enrolled in architecture school instead. - A dean once refused her request to transfer into education and told her she would become an architect. - Prantl says that decision helped shape a career that allowed her to practice architecture while also teaching. - She served on board work and curriculum development at the Community College of Philadelphia in the 1990s. - Prantl helped establish a CAD committee with the local AIA to support emerging standards as computer-aided design was taking hold.

Between the lines: - Prantl’s career reflects the professional isolation many women in architecture once faced, including being the only woman in offices or on construction sites. - She also encountered discriminatory treatment, including comments about pregnancy and workplace rules that did not account for childcare. - Rather than leaning into competition with other women, Prantl built a philosophy around helping others advance. - Prantl frames stubbornness as refusing to abandon principles, not as being rude or destructive. - Her definition of success centers on growth, curiosity and learning, even when that meant taking jobs with lower pay if they offered more development. - The emphasis on teaching fits her broader view that architecture is as much about problem-solving and personal growth as it is about buildings.

What's next: - Prantl plans to keep teaching, mentoring and staying engaged with students at Thomas Jefferson University. - She continues to focus on helping young architects become independent learners and confident professionals. - Her message to the next generation is to keep learning, stand up for yourself, support others and protect your integrity. - Through her Influential Women profile, Prantl’s story remains available to readers looking for more context on her work and perspective.

The bottom line: - Prantl’s legacy is built less on titles than on the people she has helped, the standards she has shaped and the example she has set for women in architecture.