Sienna DeSantis is a Senior Development Manager at Samuels & Associates, working on complex mixed-use projects from early feasibility through construction delivery and tenant occupancy. Sienna’s main projects include Parcel 12 (Lyrik Back Bay), Dot Block Phase II, and 1400 Boylston Street. Her role centers on coordinating design, permitting, finance, and construction teams to support high-quality delivery, with a focus on thoughtful design, careful execution, and creative problem-solving in service of long-term placemaking.

Sienna brings a collaborative, curious, and detail-oriented approach to development, with a particular enthusiasm for creating people-centered spaces. Sienna loves being a part of the Samuels and Associates team and takes pride in her role in creating environments that improve residents’ experience of spaces in Boston and adjacent neighborhoods. Prior to Samuels, Sienna worked on the development team at Trinity Financial, Inc., building a strong foundation in affordable housing development, with experience working with 4% LIHTC financing, state and local subsidy programs, and large-scale public housing redevelopment. That background continues to inform her approach today, blending financial discipline with a people-first mindset.

Sienna’s interest in development and planning was sparked after completing an urban youth internship enabling her to learn about the history that shaped the development and layout of Boston. Recognizing the positive impact real estate development and thoughtful urban layout can have on neighborhoods and cities.

Outside of work, Sienna enjoys staying active running along the Charles River; a pleasant reminder of her time spent rowing on the Division I women’s crew team at Syracuse University, where she also earned a bachelor’s degree in economics.