LDa Architecture & Interiors Promotes Tracey and Williams to Leadership Roles

Promotions follow firm's transition to employee ownership, reflecting growth and investment in internal talent.

Apr. 14, 2026 at 6:05pm

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A high-end, photorealistic studio still-life photograph featuring a polished, geometric architectural model made of premium materials like brushed aluminum and frosted glass, floating on a clean, monochromatic seamless background, conceptually representing the modernist, collaborative design approach of the employee-owned LDa Architecture & Interiors firm.The promotion of two key leaders at LDa Architecture & Interiors reflects the firm's commitment to cultivating talent and ensuring long-term sustainability as an employee-owned business.Boston Today

LDa Architecture & Interiors, a Boston-based integrated architecture and interior design studio, has announced the promotion of Erin Tracey to Principal and Carter Williams to Associate Principal. These appointments come after the firm's transition to a 100% employee-owned (ESOP) structure in 2024 and reflect the company's continued growth and commitment to developing leadership from within.

Why it matters

The promotions of Tracey and Williams highlight LDa's focus on cultivating talent and ensuring long-term, sustainable growth as an employee-owned firm. Their expanded leadership roles will help strengthen the firm's design capabilities and client relationships across residential, multifamily, and hospitality projects.

The details

Erin Tracey, the new Principal, is known for her strategic, design-forward approach that shapes environments across various markets. Prior to joining LDa, she spent over a decade in restaurant and hospitality design, leading complex projects and coordinating diverse teams. Since joining the firm, she has expanded her focus to include high-end residential interiors. Carter Williams, the new Associate Principal, is an architect who focuses on residential design, building strong relationships with clients to create thoughtful, personalized homes. Her work spans a wide range of project types and styles, from new construction to renovations.

  • LDa Architecture & Interiors transitioned to a 100% employee-owned (ESOP) structure in 2024.
  • The promotions of Erin Tracey and Carter Williams were announced on April 14, 2026.

The players

Erin Tracey

Erin Tracey's strategic, design-forward approach shapes environments across residential, multifamily, and hospitality markets. Prior to joining LDa, she spent over a decade in restaurant and hospitality design, leading complex projects and coordinating diverse teams. Since joining the firm, she has expanded her focus to include high-end residential interiors.

Carter Williams

Carter Williams focuses on residential design, building strong relationships with the individuals and families she works with to create thoughtful, highly personalized homes. Her work spans a wide range of project types and styles, from new construction to carefully considered renovations, and from historic 18th-century farmhouses to modern urban residences.

Treff LaFleche

Treff LaFleche is the Co-Founder of LDa Architecture & Interiors.

Douglas Dick

Douglas Dick is the Co-Founder of LDa Architecture & Interiors.

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What they’re saying

“Erin Tracey, our new Principal, and Carter Williams, our new Associate Principal, have long been significant leaders and creative forces at LDa. Their contributions have helped sustain and expand our reach and reputation across both architecture and interior design. Their ability to manage all aspects of the design and construction process makes them trusted partners to clients and collaborators, as well as important mentors within our studio. Erin and Carter represent the kind of seasoned, inspiring leaders we are proud to elevate as we look to the future of our newly employee-owned firm.”

— Treff LaFleche, Co-Founder, LDa Architecture & Interiors

“Erin and Carter have each emerged as design and thought leaders across our markets, from custom single-family homes to multifamily housing and hospitality. Their work has been recognized in publications including Boston Home and New England Home, as well as through awards and industry engagement. They have led design seminars on topics such as integrating art into the home, aging in place, and accessibility, and are currently leading projects across metro Boston, New York City, Cape Cod, New Hampshire, and Vermont.”

— Douglas Dick, Co-Founder, LDa Architecture & Interiors

What’s next

LDa Architecture & Interiors will continue to focus on cultivating talent and expanding its leadership team to support the firm's growth and transition to employee ownership.

The takeaway

The promotions of Erin Tracey and Carter Williams at LDa Architecture & Interiors demonstrate the firm's commitment to developing internal talent and ensuring long-term sustainability as an employee-owned business. Their expanded leadership roles will help strengthen the firm's design capabilities and client relationships across various markets.