Our Story

H2D Architecture + Design is a full service architecture and interior design firm founded in 2006 by Heidi Helgeson. This woman-owned and operated firm’s mission is to work as a team with our clients, listening and developing their objectives and visions into beautifully crafted architectural spaces. Whether our design team is working on a small remodel, new custom home, addition, multi-family dwelling, or a commercial space, the focus is on architectural detail, budget feasibility, and incorporating high-performance sustainable materials and methods.

H2D’s design team enjoys working on a variety of different project types, widely varying project scales, and diverse locations, from challenging sites to unique design requests. Each project that we take on is unique, therefore we strive to tailor our design process to fit the needs of each project to best serve each individual client. H2D uses a variety of methods to design and present the project to the client including: 3-d modeling, hand-sketches, renderings, technical plans, color coordination, and material sample layouts.

H2D Architecture + Design is certified by the Washington State Office of Minority and Women’s Business Enterprises as a women owned and operated Women Business Enterprise (WBE).

Our Team

Heidi Helgeson

  • EDUCATION: Saint Olaf College, B.A. in studio art and Asian studies; University of Washington, Master of Architecture; Passive House Designer Course

    REGISTRATION: State of Washington Architecture License, Passive House Institute Certified Passive House Designer, American Institute of Architects, AIA Seattle, NCARB

    BACKGROUND: After receiving her Master of Architecture degree from the University of Washington, Heidi Helgeson worked at a variety of architecture firms gaining experience on a wide variety of project types and styles from single family and multi-family residences to museums, libraries, and churches. Heidi founded H2D architecture + design in 2006. In addition to working at H2D, Heidi is an artist and athlete – enjoying time spent painting and sketching as well as participating in triathlons and running events.

    PROFESSIONAL AFFILIATIONS:

    • Licensed Architect in the State of Washington

    • Certified Passive House Designer

    • Healthy Homes Training for Building Professionals

    • American Institute of Architects

    • NCARB

    • Northwest EcoBuilding Guild

    • Built Green

    • Pacific Northwest JET Alumni

    • CORA (Congress of Residential Architects)

Owner & Principal Architect

Lisa Montalvo

  • EDUCATION: The Pennsylvania State University, Bachelor of Architecture and Minor in Architecture History; The Art Institute of Seattle, Associate of Arts in Interior Design

    BACKGROUND: After completing her education, Lisa Montalvo worked as an Interior Designer on a variety of projects including commercial, single-family residences, and multi-family residences. She draws inspiration from bold colors in nature and loves to incorporate them in design. Outside of H2D, Lisa is an adaptive Crossfit competitor, softball player, and loves to cook.

Architectural & Interior Designer/Project Manager

Sarah Thompson

  • EDUCATION: State University of New York, College at Oneonta, B.A. in Studio Art with a concentration in Computer Graphics

    REGISTRATION: State of Washington Architecture License, State of California Architecture License

    BACKGROUND: Sarah’s career has spanned from Southern California up the West Coast to the Pacific Northwest, working for firms specializing in custom single-family residential, multi-family residential, commercial, and healthcare. She is thrilled to be back doing custom single-family design as this work is closest to her heart and passions, and prides herself on establishing trusting relationships with clients to help them achieve their visions. There is never a design problem that can’t be solved! Sarah loves to pursue art outside the office, including quilting, quilling, and graphic design, and enjoys reading, travel, camping, and hanging out with her family.

Project Architect & Project Manager

Lauren Groth

Interior Designer

  • EDUCATION: Seattle Pacific University, Bachelor of Arts in Interior Design

    BACKGROUND: Lauren started her career as an interior designer working with builders on modern new construction spec homes. In more recent years, she has pivoted to custom new construction and remodels on a wider variety of styles, though midcentury modern will always remain her personal favorite. Lauren enjoys solving design puzzles and gaining knowledge from each unique project, always focusing on what functions best and allowing beauty to follow close behind. Lauren loves to spend her free time crafting, playing guitar, mixing cocktails, and hanging out with family and friends.

Cristy Weller

Architectural Designer & Project Manager

  • Education: Washington State University, Bachelor of Architecture

    Background: Cristy has had the opportunity to work on a variety of single-family homes and remodels, as well as numerous multi-family projects throughout her career. It is the personal nature of custom residential projects that she enjoys the most. In her free time, Cristy loves gardening and spending time with her family.

Claire Prestegard

  • Education: University of Puget Sound, Bachelor of Arts in Science, Technology, and Society

    Background: With a background in marketing across various industries, Claire now brings her creative flair and organizational skills to her role as Office Manager + Design Assistant at H2D! Outside of the office, you’ll find her hiking in the PNW, practicing yoga, working on her house, or spending time with family, friends, and her pets.

Office Manager & Design Assistant

Captain

  • BACKGROUND: Captain is H2D’s beloved Barkitect in training. With one striking blue eye, Captain is not just a pretty face; he’s known for inspiring creativity and joy in the office. When he’s not scouting out the best napping spots or chomping on his favorite chew toys, Captain ensures that everyone stays motivated with his playful antics and unwavering support. He’s proof that great architecture starts with a solid foundation of love, loyalty, and hours upon hours of training!

Office Barkitect