Meet the Team

  • Mark Tremmel

    PRINCIPAL ARCHITECT | AIA | LEED AP BD+C

    Principal, founder, and project architect, Mark has over thirty years of experience providing design excellence in beautiful, client-driven, sustainable places and spaces. Growing up in Wisconsin, surrounded by Frank Lloyd Wright ‘nature inspired’ buildings, it was a natural progression for Mark to earn one of the first dual degrees offered in Architecture and Environmental Design.

    Mark enjoys taking advantage of Colorado’s amazing views, abundant sunlight and fresh, mountain air, and strives to save energy on every project he acquires with the hope to keep us all happier and healthier. In the future, Mark believes that as a society, we will better attune our environment to accommodate for day-to-night temperature swings and take advantage of clean power while happily re-connecting to the great outdoors.

  • Sharon Allen

    ARCHITECT | LEED AP

    Sharon has over twenty-five years of experience in architectural design and brings her energy, personal commitment, and professional excellence to every project. Her creative manipulation of space, collaborative management skills, and thorough understanding of building systems bestows great value to all her work. She has extensive knowledge in commercial design, construction administration and is licensed in Colorado and California as a LEED AP Professional.

  • Elizabeth LaDuke

    ARCHITECT | AIA

    Elizabeth was drawn to architecture in large part due to her talent and adoration for drawing. She earned a Bachelor of Architecture with Honors from the University of Notre Dame, where she received a classical architecture education that included sketching, drawing, and Beaux Arts watercolor presentation. Elizabeth began her career working on multi-family projects at a mid-size firm in Raleigh, NC and later in San Antonio, TX specializing in luxury custom residences and ranches.

    In 2010, she completed the ARE and became a Registered Architect in Texas. Before joining us at TDG, she ran her own architectural illustration business, providing freelance watercolor renderings for various architecture firms, marketing firms, and publications.

  • Rick Hibbard

    ASSOCIATE ARCHITECT

    Rick has been working with hospitality, custom single-family homes, multi-family residences, and commercial projects through all phases of project development for over ten years. He has instructed BIM courses at the graduate level and finds inter-discipline coordination more effective through the use of this state-of-the-art technology.

    His drive to find solutions to challenges that arise during the design, approval, and construction processes makes Rick indispensable to our team. He recently moved back to his home of Colorado Springs, and is looking forward to rediscovering the area while working with us at TDG Architecture.

  • Hannah Mueller

    ASSOCIATE ARCHITECT

    Hannah Mueller is a young architectural designer from St. Louis, Missouri. In 2017, Hannah graduated with a Master of Architecture from The University of Kansas. Before working at TDG, she spent two years designing for Mackey Mitchell Architects in St. Louis, where she fostered a commitment to sustainability, a desire to grow her architectural knowledge, and a passion for expanding her architectural reach to diverse communities. She strives to create unique, distinct spaces during work hours and in her free time, Hannah loves to explore the mountainous terrain here in beautiful Colorado.

  • Morgan McCurdy

    ASSOCIATE ARCHITECT

    Morgan McCurdy is a recent graduate from the University of Oklahoma where she received a Master’s degree in Architecture. She is currently pursuing and expanding her knowledge in the residential and affordable housing sector. Morgan is a bilingual professional with experience in finance, teaching, editing, business management, and customer service. This is her third year working at TDG Architecture and before working for us as an intern, Morgan lived and worked in Viña Del Mar, Chile, as a financial editor and in Queenstown, New Zealand, as a retail assistant. She also holds Bachelor degrees in Mathematics and Spanish.

  • Lori Lilly

    BUSINESS MANAGER | SDA

    As business manager, Lori Lilly plays an integral role within the TDG team. With her extensive background in computer science, math and economics from St. Lawrence University, she oversees TDG’s finances, bookkeeping, and HR needs, in addition to managing other critical day-to-day tasks inside our office. Her excellent management style helps keep other TDG members on track and her adaptability and problem solving skills allow her to step in and help as a welcome addition on select projects.