P/K Architecture

Peterssen/Keller Architecture is an award-winning full-service architecture and design firm that specializes in custom homes, lofts, cabins and boutique commercial projects. Our collaborative, client-focused design process results in unique residences that are as distinct as their owners.

As residential architects and designers, we integrate sustainable design practices into every project, from small additions to LEED-certified new homes, finding solutions that merge environmental thinking with exceptional design. At Peterssen/Keller, every client is our passion, and every project is an opportunity to create a home crafted to last a generation.


    Lars Peterssen, AIA, NCARB Principal / Architect

    "Design works in mysterious ways. If Argentine architect Emilio Ambasz hadn’t accepted Milton Friedman’s invitation to speak at the Walker Art Center three decades ago, Lars might be living on Bainbridge Island in Seattle, designing the next generation of computers..."

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    ...At the time, Lars, who graduated magna cum laude from Carleton College with a degree in physics, was working on supercomputers at Control Data. When Ambasz spoke about the integration of architecture, landscape design, and product design, his ideas resonated with Lars on a profound intellectual level. Lars recognized that architecture, like science, includes an analytical approach to problem solving, only on a grander and infinitely more beautiful scale.

    Lars brings this unique perspective to each of his projects. His designs bring warmth and texture to modern design, and he specializes in bringing together the very best of styles. His distinct residences and projects can be found in New York City, Deer Valley, California, Florida, Arizona and across the Midwest.

    Lars is a founding principal of Peterssen/Keller. Lars has worked at Meyer, Scherer, and Rockcastle, The Cuningham Group and he was a founding partner of Domain Architecture & Design. Lars also taught at the University of Minnesota and was awarded the Frederick Mann Award for Disciplinary Service. Lars has had extensive business holdings in Russia, including restaurants and an import/export company.

    Lars is a member of the AIA, NCARB certified, and a licensed architect in New York, Minnesota, North Dakota and Wisconsin. Lars has a master of architecture degree from the University of Minnesota, where he was honored with the AIA Henry Adams Medal for his accomplishments.

    To contact Lars directly, please call our office or reach him via email at

    Kristine Anderson, Associate AIA Associate Principal / Designer

    "Kristine is an associate principal with Peterssen/Keller architecture. In this role, Kristine brings an attention to detail seen through projects she has managed and led; from a small and seamless traditional home addition, to a modern grain elevator condo remodel, or a new north shore cabin..."

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    ...No matter what the project entails, she strongly believes in thoroughly exploring the connection between client and environment, and how that begins to inform design.

    Prior to joining Peterssen/Keller, Kristine worked as a project manager and designer at Domain Architecture & Design. While at Domain, she worked on several custom lofts, residential remodels and renovations of small and large scale, as well as new houses and cabins. During and after graduate school, Kristine worked as an architectural intern at LTD! Designs, a residential design firm, and in the design studio of Choice Wood Design/Build.

    Kristine received a Master of Architecture and a B.A. from the University of Minnesota. Since 2005, Kristine has taught at the University of Minnesota's College of Design as an Adjunct Assistant Professor in the School of Architecture. Kristine is an avid amateur photographer, and has received national and regional photography awards from the American Institute of Architects.

    Kristine is an Associate member of the AIA.

    To contact Kristine directly, please call our office or reach her via email at

    Andrew Edwins, Associate AIA Senior Associate / Designer

    "Andrew completed his graduate work in architecture at the University of Minnesota, earning a M.Arch in 2008 and a M.S. in Architecture and Sustainable Design in 2009."

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    ...Andrew focused his academic work on how architecture, buildings, and sites fit within the larger societal, infrastructural, and ecological systems that define our world. Professionally, Andrew is interested in how technology, both past and present, can be used to fully integrate environmental and ecological thinking into outstanding design.

    Andrew came to architecture through his undergraduate work at Carleton College in Northfield, MN where, in 2005, he earned a B.A. in Studio Art. While his undergraduate work was focused on Studio Art, Andrew took courses across many subjects as well as studying in Norway, Australia and New Zealand, and at the Harvard University Graduate School of Design in Boston, feeding his natural curiosity.

    When not working, Andrew continues to develop his artistic talents, with sketching, photography, and printmaking, as well as a growing interest in digital art and drawing—all while listening to copious amounts of Bob Dylan, Led Zeppelin and Pink Floyd.

    Laura Cayere-King, Associate AIA Project Manager / Designer

    "Laura has more than 16 years of experience in residential design. Her portfolio includes many Residential Architecture Vision and Excellence (RAVE) and AIA Minnesota Home of the Month awards..."

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    ...Laura’s collaborative design process and attention to detail allows her to design homes that harmonize with the way that the clients live, work and play. She considers a great honor to work with clients and translate their ideas into beautiful, memorable homes that reflect their identity and personality. Prior to joining P/K, Laura worked at TEA2 Architects, Meyer Scherer & Rockcastle Architecture, and Albertsson Hansen Architecture in Minneapolis. In 2010, she won the Ralph Rapson Traveling Study Fellowship, allowing her to travel through Germany and study sustainable housing and Passive House design. She received a B.A. from Carroll University in Theatre Design and Art and a Master of Architecture from the University of Minnesota. Laura is a visiting Adjunct Instructor for the Bachelor of Design program at the University of Minnesota School of Architecture. She also mentors students through the College of Design Mentor Program.

    When she’s not designing homes, Laura enjoys spending time with her family, visiting museums, observing and considering art, and being outdoors. She also loves gardening, hiking, and kayaking on Minnesota's many rivers and lakes.

    Bob Le Moine, AIA, NCARB Project Manager / Architect

    "An experienced project manager, Bob is responsible for ensuring that projects unfold according to P/K's rigorous planning and programming process..."

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    ...Passionate about design solutions that reflect the clients' unique story, Bob excels at creating a collaborative and satisfying design process. After studying architecture in Milwaukee, Bob received his masters of architecture degree from the University of Oregon—Portland. When he's not working, Bob can be found exploring the Twin Cities with his wife Laurie and their children Ethan and Maria. When Bob's not recreating with his family, he enjoys fly-fishing, soccer, and drawing.

    Bob is NCARB Certified, and a licensed architect in the State of Minnesota.

    Brent Nelson, AIA, LEED Green Associate Project Manager / Architect

    "After a youth of Lego and building block construction, Brent refined his craft at North Dakota State University where he completed a Master of Architecture degree..."

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    ...Upon graduation he moved back to his hometown, Bismarck ND, to help open a family owned architectural practice, Leaf Design Studio. There he developed experience in a wide range of work from community centers, to multifamily housing and mixed-use developments. In all his projects he carefully considered how each individual building helped form a community fabric.

    Brent comes to Peterssen/Keller with advanced 3d modeling and design communication skills. His work offers clients real-time design walk-throughs that help team members engage design conversation. Brent finds joy in helping clients more easily understand design options and the excitement they have when a solution is found. 

    On a nice day, Brent can be found slowly cycling Minneapolis's many trails and cycle lanes. While an urbanite at heart, Brent makes frequent trips back to the grasslands of Western North Dakota to find solace in the endless horizons and subtle landscape.

    Brent is a licensed architect in the State of Minnesota.

    Tammy Angaran, AIA, CID, LEED-GA Project Manager / Architect

    "While Tammy enjoys every aspect of the architectural process, her favorite part is design development, which includes selecting the materials, figuring out the details, and transforming the parts into a cohesive, beautiful whole..."

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    ...Tammy enjoys residential projects of all sizes and scale and finds it gratifying to solve the challenge of integrating each home with its site, surroundings, and community. After receiving her BArch (and winning a thesis award) from the University of Minnesota, Tammy began her career at HGA where she specialized in commercial and education projects. At a pivotal point in her career, Tammy discovered her true passion for residential design. Prior to joining P/K, she worked at ALTUS Architecture and Albertsson Hansen Architecture in Minneapolis. For her thoughtful, timeless residential work, Tammy has been honored with a P/A award, an AIA Honor Award, and several RAVE and AIA MN Star Tribune Home of the Month awards. When Tammy’s not at P/K, she enjoys traveling (cathedrals are always on her itinerary), going to concerts, watching hockey and football, and exploring the Twin Cities and Minnesota with her husband Tim and their teenagers Isaac and Rachel.

    Tommy Everson, AIA Project Manager / Architect

    "Tommy came to P/K in 2011 after receiving a B.A. and M.Arch from the University of Minnesota, bringing with him a focus on sustainability and landscape urbanism."

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    While at P/K, he has worked on several award-winning projects, and developed a passion for residential architecture. He is also committed to integrating sustainable design strategies into his practice, with the belief that architecture can be a catalyst for social change.

    Prior to joining P/K, Tommy spent several summers as a residential drafting intern at Twin Cities Habitat for Humanity. In addition to learning building construction techniques and graphic standards, he saw firsthand that architecture doesn't have to be expensive or complex to be meaningful. A steadfast proponent of simple, elegant design, he maintains that quality craftsmanship and attention to detail are the tenets of good design.

    Tommy has an affinity for mid-century modern (MCM) architecture. After living in a kitschy MCM ranch house in St. Louis Park, Tommy and his wife Megan were drawn to a classic MCM house in Edina designed by renowned architects Win and Lisl Close in 1948. They purchased the home in 2013 and have been thoughtfully restoring it ever since. When not working at the P/K studio or on his house, Tommy enjoys playing disc golf and hockey, boating on Lake Minnetonka, indulging in spicy cuisine, and hanging out with his son Henrik. 

    Tommy is a licensed architect in the State of Minnesota

    Sarah St. Louis, Associate AIA Production Drafter

    "Sarah has been a residential designer/drafter for over 12 years..."

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    ...During this time she has worked on numerous Luxury Home Tour and Parade of Home houses, including Midwest Living Magazine's 2008 Idea Home, which received the Silver Star Certification from the Minnesota Green Star Program. She also worked on the Locust Hills development in Wayzata, MN, including the conversion of the 1941 horse stable into the Community Center, and the 2009 Luxury Tour home.

    As the daughter of a builder, Sarah grew up on the construction site and aspired from a young age to one day design homes. Sarah believes that beautiful design & quality construction starts with paying attention to the details and impeccable craftsmanship.

    Sarah lives in Minnetonka with her two boys and two opinionated cats.

    Bennett Bossert, AIA, LEED AP, NCARB Project Manager / Architect

    "Bennett's career has taken him around the world in 1,460 days... "

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    ...Prior to joining P/K, Bennett spent four memorable years living in Hong Kong and designing skyscrapers in China. His passion for architecture became evident at the age of 10 when he learned that his parents were planning to renovate and move into his grandparents’ house on Galpin Lake in Excelsior. Bennett was so excited, he drew his own plans for the project and insisted on being involved in every conversation with the architect. Thus inspired, Bennett went on to earn a bachelor’s degree in architecture from Southern Illinois University Carbondale and a master’s degree in architecture from Cornell University, where he focused his efforts on emerging digital techniques and parametric design, a process based on algorithmic thinking that defines, clarifies, and codes the relationship between design intent and design response. When he’s not designing homes, Bennett enjoys traveling, mountain biking, playing tennis, snowboarding, surfing, and working on art projects. His dream project? A modern surf lodge on the beach in Bali.

    Nancy Britt, Associate AIA Materials Resource Manager

    "Bio Coming Soon "

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    Amanda Kostalik, Associate AIA Architectural Designer

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    Pam Meier Office Manager

    "Pam is a modern Renaissance woman..."

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    ...Passionate about outstanding customer service, beautiful design, and luxury products, Pam goes above and beyond to create unique experiences for P/K clients and colleagues. Whether she’s managing the office, masterminding the annual P/K office party, or caring for the team in a myriad of thoughtful ways, Pam brings warmth and style to everything she does.                                                     

    Prior to joining P/K, Pam was in sales, training, and human resources at Dayton’s/Hudson’s/Marshall Fields. A true Francophile, she has served as the executive director of the French American Chamber of Commerce. She’s also active in politics at the state and national level.                   

    Equal parts Ina Garten, a.k.a. The Barefoot Contessa, and Martha Stewart, Pam somehow finds time to tend her boulevard butterfly garden, make artisan jams and preserves, maintain her vast collection of china, crystal, silver, and table linens, and host an annual homemade pie and ice cream social for more than 200 of her closest friends. She holds degrees in historic costume, museum curatorship, and anthropology.

    Gabriel Keller, Associate AIA Principal / Designer

    "For Gabriel, architecture is ultimately about designing an experience—intuiting how an environment should feel, and then using light, space, line, and form to create it..."

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    ...This experience is ultimately about designing a sense of place, and of home, that is uniquely individual to each of his clients and their richly divergent locales.

    At the age of sixteen Gabriel lived abroad in Antwerp, Belgium, where he immersed himself in European culture, food, and football. After graduating with highest honors, Gabe headed east to Cornell University, one of the oldest architecture schools in the country. After spending three years in Ithaca and studying classical architecture and design in Rome, he was lured by the siren song of Soho.

    Gabriel spent three memorable years in New York designing an array of extraordinary restaurants, hotels, nightclubs, and other environments for Serge Becker, the Paris-born, Swiss-Vietnamese impresario and designer of Bowery Bar, Area, M.K., and other haute hot spots. They also collaborated on sleek New York lofts and breathtaking Hamptons beach houses.

    Recognizing his true passion for residential design, Gabriel returned home to Minneapolis. At Domain Architecture & Design, he found a kindred spirit in colleague Lars Peterssen and the duo designed award-winning traditional and contemporary homes, lofts, and cabins for clients in the Twin Cities and around the country. Driven by a desire to refine his own architectural style, Gabriel cofounded Peterssen/Keller Architecture in 2009. His scope is national--with homes under design in New York to California--and his work has been extensively featured in numerous national and international publications.

    Today, Gabriel's life has come full circle--just the way he designed it. With a solid footing in the local community and a thriving family, Gabriel sees Peterssen/Keller's location in Minneapolis as the perfect platform for their developing portfolio of bespoke homes located around the country.

    Gabriel is an Associate member of the AIA, where he co-chairs the AIA MN Residential Architecture Committee, is a member of the Committee on Equity, Diversity and Inclusion, and is part of the Intercultural Leadership Program. He also serves on the Program Advisory Committee for the new Bachelor of Architecture program at Dunwoody College of Technology.

    Outside of the office, Gabriel is an active volunteer within his community. He has supported and volunteered with Wilderness Inquiry for over 25 years, and is a licensed Emergency Medical Technician in Minnesota and a volunteer with the Lake City Ambulance Service. 

    To contact Gabriel directly, please call our office or reach him via email at

    Ryan Fish, AIA, LEED AP Senior Associate / Architect

    "Ryan is an associate with Peterssen/Keller Architecture. With over 15 years of residential design experience, his projects have been widely published and have received numerous awards, including Home of the Month, RAVE Awards and AIA Minnesota Honor Awards..."

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    ...Whether he's working on a small kitchen remodel, a cabin renovation, or a new home, Ryan has a keen interest in seamlessly integrating sustainable practices into the design. He feels it is a great privilege to be entrusted by his clients to design their home, and he is passionate about making the design process a positive and collaborative experience between architect and client.

    Prior to joining Peterssen/Keller Ryan worked at several award winning residential firms, including U+B Architecture & Design and Albertsson Hansen Architecture. Ryan studied architecture at both the University of Minnesota and the University of Wisconsin and is a LEED AP-certified, licensed architect in the state of Minnesota.

    Ryan grew up in the cabin country of northern Wisconsin, and many of his hobbies revolve around the outdoors. He loves getting his children outside to camp, fish, and experience the Northwoods.

    Carl Olson, AIA Associate / Architect

    "Carl has over a decade of experience in residential design, including projects that have won RAVE Awards, a P/A Award, and Minnesota AIA Honor Awards..."

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    ...Before coming to Peterssen/Keller Architecture, he spent eight years at ALTUS Architecture + Design, where he worked on projects of virtually every scale – from garage build-outs to concepts for skyscrapers that exceeded 200 stories. He brings a critical eye for understanding the context of every project, and he cares deeply about the individual personality of each client. He believes that environmental responsibility is a fundamental starting point to any project, but that good architecture must be the end point. He sees light as the creator of space.

    Carl initially studied chemical engineering and advanced biology at the University of Minnesota. In 2004, he returned to the U's College of Design for a Master's Degree in Architecture. During his studies, he lived and studied in Florence, Lisbon, Barcelona and Venice. His award-winning thesis, Plant Squared – An Urban Farm, looked at bringing agricultural production into urban centers. He is a licensed architect in the state of Minnesota.

    Carl is passionate about fishing, woodworking, playing bass in a local band and traveling around the world with his wife.

    Ted Martin, AIA, LEED AP, NCARB Project Manager / Architect

    "Passionate about architecture and travel, preferably at the same time, Ted’s passport is filled with stamps from Canada, Hong Kong, Nepal, and other far-flung places..."

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    ...After growing up in Minnesota, Ted went east to Bates College in Maine where he studied religion. His studies took him to Nepal, where he documented Buddhist and Hindu architecture and discovered his interest in sacred spaces and his passion for environmental design. Ted then went west to the University of the Oregon, one of the foremost sustainable design programs in the country. He also did studio work at the UC Berkeley and the University of Hong Kong. After receiving a master’s degree in architecture (and a student design award for his master’s thesis), Ted went north to Vancouver, British Columbia. He spent several years designing sustainable university buildings and custom “west coast modern” homes before returning to Minneapolis. When he’s not at P/K, he enjoys cycling, running, and skiing with his wife Joy, an architect, and their children Caroline and Oliver.

    Chad Healy, Associate AIA Project Manager / Designer

    "When Chad was growing up in Aberdeen, South Dakota, he designed all kinds of things, including cars, shoes, and electronics... "

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    ...Traveling through Europe on an architecture study trip solidified his life’s direction and his desire to impact people in a positive way. Chad attended North Dakota State University, where he received a Bachelor of Architecture and a Bachelor of Science in Environmental Design. He moved to Minneapolis nearly 20 years ago, where he lives in a remodeled, mid-century split-level with abundant natural light. An aficionado of modernism, Chad believes that homes should be designed with a focus on site response, detail, and materiality to reflect current lifestyles, needs, and goals and convey a sense of timelessness. When Chad’s not in the design studio, he enjoys spending time with his kids Sophia and Brennan, attending concerts and architecture/design lectures, traveling, and experiencing other cultures.

    Ashley Peterson, Associate AIA, LEED AP BD+C Project Manager / Designer

    "With a rich background in fine arts, graphic design, environmental studies, landscape design, and a degree in the design of architecture from the University of Minnesota, Ashley loves using her diverse experiences to create something multifaceted and meaningful for every client...."

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    ...Ashley enjoys the iterative process of architectural design and working through materiality studies using renderings. She is ambidextrous with 3D visualization tools and keeps current by dabbling in digital fabrication and laser arts. As a LEED-accredited professional in building design and construction, Ashley has stewarded projects through LEED certification, ensuring their success. An active member of The American Institute of Architects and a member of the Women in Architecture group, Ashley helps further the development of women in the field by creating networking events and mentoring connections. She has also served as a guest architecture instructor at multiple schools in the Twin Cities. When Ashley’s not working, she enjoys practicing yoga, taking in live music, and meticulously renovating her south Minneapolis home she shares with an elderly Jack Russell terrier and her companion Andrew.

    Jason Briles, Associate AIA Production Manager / Project Manager

    "Jason brings more than 20 years of residential design and drafting experience to Peterssen/Keller, including extensive experience in residential detailing..."

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    ...He has worked on a diverse set of award winning projects, including two Home of the Month homes, Heritage Preservation Award office restoration, and a LEED Platinum home.

    Prior to joining Peterssen/Keller, Jason worked as a project drafter and designer at Domain Architecture & Design. There he worked on custom lofts, numerous renovations and small commercial projects. He also worked as a drafter/designer at both Friedell Architects & Builders, as well as McMonigal Architects.

    Jason is an avid outdoorsman, spending many weekends in the woods enjoying nature and occasionally in pursuit of grouse. His appreciation of good design extends to areas outside of architecture, including a passion for classic cars and outdoor photography.

    Cynthia Burns, AIA Project Manager / Architect

    "When Cynthia was growing up in the Boston area, she loved tinkering in her grandfather’s woodshop and helping her father with projects around their old houses..."

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    ...Working with her hands fueled an appreciation of craft and an artistic curiosity that led to studies at Rhode Island School of Design and a career in architecture. Drawn to the wide, open spaces, seasonal changes, and multitude of bike trails, Cynthia came to Minnesota more than 20 years ago. After honing her technical skills in commercial architecture, Cynthia returned to her love of the personal scale of residential design and joined P/K as a designer and drafter. For Cynthia, good design is inventive, functional, comfortable, and memorable. She respects well crafted, existing homes and enjoys refreshing and renewing them with current methods and materials. Cynthia loves being part of a team, collaborating with clients to bring a vision to reality, and sharing the delight she finds in the light, warmth, and tactility of expertly designed spaces. When she’s not in the design studio, Cynthia, an accomplished potter, enjoys working on her own creations and continuously improving her old house and gardens.

    Cindy is a licensed architect in the State of Minnesota.

    Peter Atkins, Associate AIA Architectural Designer

    "Peter’s passion for architecture took root on his family’s apple orchard and farm in Bayfield, Wisconsin..."

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    ...In between building tree forts with scrap material and helping his parents construct outbuildings and renovate their home, Peter became fascinated by design and construction.                                         

    Peter attended the University of Minnesota where he received a Bachelor of Science in Architecture with a minor in Landscape Design and Planning. An admirer of Luis Barragan’s serene modernist homes and gardens, Peter also spent a semester studying architecture in Mexico.

    Prior to joining P/K, Peter was a designer at Choice Wood Company where he immersed himself in residential design and construction. In addition to architecture, he enjoys photography, biking, downhill skiing, and camping. Peter and his girlfriend Sonia live with Leo, a lop-eared rabbit, in a circa-1920s building in the Wedge neighborhood of Minneapolis. On Peter’s bucket list: designing and building his own cabin on the north shore of Lake Superior.

    Jared Nurnberger, Associate AIA Architectural Designer

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    David Swan, Associate AIA Architectural Designer

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    Denise Wilkens Financial Administrator

    "Denise is the Controller/Office Administrator, handling the firm’s accounting and human resource activities..."

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    ...She has provided accounting support in the architecture/design field for the past six years. Prior to that her experience was in the food industry in Minneapolis with Pillsbury and in the medical industry with Medtronic in Minneapolis as well as a business unit in San Diego, a sales office in Stockholm, Sweden supporting the financial activities in all of the Scandinavian countries, and in the Netherlands assisting in the establishment of a European financial shared service center.

    Denise moved to Minneapolis after graduating in Accounting from the University of North Dakota in Grand Forks. After working a number of years, she went to graduate school at the Carlson School of Management at the University of Minnesota and completed an MBA in Finance. She lives in the Minneapolis Lakes area.

    Melinda Nelson, Associate AIA Director of Marketing

    "Melinda is the director of marketing for Peterssen/Keller. She loves architecture, design, and culture, and her greatest joy is introducing like-minded people to each other and watching the beautiful results unfold..."

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    ...Melinda is passionate about both traditional and contemporary architecture—her favorite buildings in the Twin Cities are the enchanting Lake Harriet Bandshell and the ethereal ING Reliastar building in downtown Minneapolis.

    Melinda is also an award-winning writer and editor. She is a co-author with photographer Karen Melvin of Great Homes of Summit Avenue and the Hill District. Melinda's work has also appeared in Mpls.St.Paul Magazine, Twin Cities Business, Artful Living, Sun Country Airlines magazine, and other publications.

    Melinda is an associate member of the American Institute of Architects and the Excelsior Historic Preservation Commission. When she's not working, she loves traveling with her children and swimming in Lake Minnetonka with Sugar, the world's most amusing yellow Labrador.