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Stull & Lee, Inc.

Award-winning Boston architecture, urban design and planning firm founded in 1966, known for transit, institutional and housing work.

Last updated September 27, 2026

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Overview

Stull & Lee, Inc. (S+L) is an American architecture, urban design and planning firm based in Boston, Massachusetts. Founded in 1966, it is one of the longest-established minority-owned design practices in the United States. The firm was established by the late Donald L. Stull, an African American pioneer in the architecture profession, a graduate of the Harvard Graduate School of Design, a member of the American Institute of Architects College of Fellows, and recipient of the Boston Society of Architects 1997 Award of Honor. Following Stull's death, the practice has continued under the leadership of M. David Lee. S+L describes itself as a 100% minority-owned firm holding Massachusetts Certified Minority Business Enterprise (MBE) and Disadvantaged Business Enterprise (DBE) designations. Its portfolio spans civic and institutional buildings, commercial and office buildings, educational and health care institutions, multi-family residential housing, retail and manufacturing facilities, and transportation infrastructure including highway infrastructure, transit stations and related facilities. A significant portion of its work consists of institutional master planning and large-scale urban design and planning commissions across the United States. The firm's projects have frequently been cited for design excellence. Its best-known recognition is the Presidential Design Award from the National Endowment for the Arts, awarded for design leadership on Boston's Southwest Corridor transit project. S+L has also received multiple awards from the American Institute of Architects and its Boston and New England affiliates. Stull & Lee positions itself around distinctive design outcomes and an explicit commitment to avoid the direct application of stored solutions, whether drawn from research or from the firm's own past projects. It frames its obligation to clients as offering innovation, creativity and practice-led design thinking. The firm operates as a private professional-services practice rather than a publicly traded company, and its work is concentrated in the United States.

History

Stull & Lee, Inc. was founded in 1966 in Boston, Massachusetts, by Donald L. Stull, an African American architect who became a pioneer in the profession. Stull was a graduate of the Harvard Graduate School of Design, a member of the distinguished College of Fellows of the American Institute of Architects, and the recipient of the Boston Society of Architects 1997 Award of Honor. The firm was established at a time when minority-owned architecture practices were rare in the United States, and it grew into an award-winning architecture, urban design and planning practice. Over its history, S+L built a portfolio that spans civic and institutional buildings, commercial and office buildings, educational and health care institutions, multi-family housing, retail and manufacturing facilities, and transportation infrastructure including highway infrastructure and transit stations. A significant portion of the firm's work has been in institutional master planning and large-scale urban design and planning commissions nationwide. The firm's projects have frequently been cited for design excellence. Its most prominent recognition is the Presidential Design Award from the National Endowment for the Arts, awarded for the firm's design leadership of Boston's Southwest Corridor transit project. S+L has also received multiple awards from the American Institute of Architects and its Boston and New England affiliates. After the death of founder Donald L. Stull, the firm continued under the leadership of M. David Lee. Under Lee, S+L has maintained a stated commitment to distinctive design outcomes and to avoiding the direct application of stored solutions, whether found in research or in the firm's own past projects. The firm describes its obligation to clients as offering innovation, creativity and practice-led design thinking. Stull & Lee, Inc. is a 100% minority-owned firm with Massachusetts Certified Minority Business Enterprise (MBE) and Disadvantaged Business Enterprise (DBE) designations. It remains a private professional-services practice headquartered in Boston and active in the United States.

  • 1997

    Founder Donald L. Stull receives the Boston Society of Architects Award of Honor.

  • 1966

    Stull & Lee, Inc. founded in Boston by Donald L. Stull.

  • Firm receives the Presidential Design Award from the National Endowment for the Arts for design leadership of Boston's Southwest Corridor transit project.

  • Firm continues under the leadership of M. David Lee following the death of founder Donald L. Stull.

Products and positioning

Award-winning, 100% minority-owned architecture, urban design and planning firm emphasizing innovation and distinctive design outcomes over stored solutions.

  • Civic and institutional buildings

  • Commercial and office buildings

  • Educational and health care institutions

  • Multi-family housing

  • Retail and manufacturing facilities

  • Highway infrastructure and transit stations

  • Institutional master planning

  • Large-scale urban design and planning

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