Our Purpose

We understand that the quality of the space around us directly impacts our well-being. We exist to design outdoor spaces that elevate the experience of everyday life.

Our Process

Every client, every space, and every design benefits from following a thorough and thoughtful process. Our process is integral to the success of our projects and the satisfaction of our clients.

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Our People

Evan Brandon, ASLA

Founding Principal

As the founding principal of Outdoor Spatial Design, Evan is passionate about creating spaces that excite and inspire those who use them. In his 15+ years of professional practice, Evan has gained experience in all facets of residential and commercial landscape architecture. He has been fortunate to be a part of a large array of projects including the The Ocean Course and the Sanctuary Hotel on Kiawah Island, the College of Charleston, as well as numerous other commercial and residential designs. He also prides himself on understanding the environmental opportunities presented by various projects, while he creates solutions that clients may not have considered.

Evan earned his Masters Degree in Landscape Architecture from Louisiana State University and is a Registered Landscape Architect in the State of South Carolina, as well as a member of the American Society of Landscape Architects. When not in the office, you will find Evan with his family—either helping compose the next movie soundtrack with his oldest son, shooting hoops with his youngest son, or traveling.

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Marie Langlois, ASLA, LEED AP

Landscape Architect

Marie joined OSD in the fall of 2017 as a Landscape Architect and Planner with 10 years of experience in both the private and public realm. Marie has been involved in the design of several award-winning projects across the southeast, including large-scale master plans, streetscape designs and park projects with the National Park Service, US Fish and Wildlife Service, and local municipalities. Marie is passionate about developing close working relationships between clients and the design team in order to ensure a successful project.

Marie earned her Bachelors Degree in Landscape Architecture from Louisiana State University. She is a Registered Landscape Architect in the State of South Carolina and a member of the American Society of Landscape Architects. She is also a graduate of the Charleston Metro Chamber’s Leadership Charleston Class of 2017 and a LEED Accredited Professional. In her spare time, you can find Marie spending time with her family.

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George Schneidmuller, PLA, ISA

Landscape Architect, Arborist

George joined the OSD team in 2015, bringing an invaluable amount of creativity, horticultural knowledge and field experience. As a landscape architect, George works on various projects including single and multi-family residential design, commercial design, public open spaces, and park planning. George enjoys working closely with our clients from the conceptual stage through construction.

George earned a Bachelors Degree in Landscape Architecture from Clemson University with a Minor in Horticulture. George also is OSD’s resource for all things trees, as he is an International Society of Arboriculture Certified Arborist. Outside of OSD, George donates his time as a member of the Youth Ambassador Council with the First Tee of Greater Charleston. In his free time he can be found exploring the outdoors, spending time with his wife and son, or playing golf.

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Garris Killingsworth, ASLA

Landscape Designer

Garris joined the OSD team in the spring of 2018. Prior to graduating from Clemson University with an undergraduate degree in Landscape Architecture, he served as OSD’s first intern. Garris has gained valuable experience in residential, commercial, institutional and public design from his previous work experience. He also spent a semester analyzing and designing portions of the Lowcountry Low Line for his senior exit project.

One of Garris’ life goals is to improve the natural landscape, livability, and functionality of our surrounding communities. A native to Johns Island, Garris likes to spend his free time fishing the nearby rivers or playing golf at “The Muni” with friends.

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Wade Alexander, ASLA

Landscape Designer, Horticulturalist

Wade joined OSD in Summer of 2020 as a Landscape Designer and Horticulturist with 5 years of experience in the Public Garden and Landscape Architecture profession. Wade has been involved in local, national, and international projects that service both private and public users. A true native of Charleston, Wade prides himself on building creative relationships with members of the community and exploring new ideas that still pay homage to local vernaculars.

Wade earned his Bachelors Degree in Environmental Horticulture from Clemson University, his Masters in Landscape Architecture from University of Georgia, and a Certificate in Historic Preservation from University of Georgia. Wade enjoys collecting worldly experiences which range from working in Monet’s Garden in France to hiking in the Grand Tetons. Locally you can catch him throwing dinner parties for friends and family in the Charleston community, sailing charter harbor tours for tourists, or jammin’ out with buddies in their garage band.

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Allen McDonald, ASLA

Landscape Designer

Allen joined the OSD team in the Spring of 2021 as a Landscape Designer with a background in Horticulture. He brings experience from a variety of project types, ranging from large scale campus planning, to small scale public parks and residential gardens. Allen prides himself in building lasting relationships with clients and helping them to create landscapes which provide year long interest and function long term.

Allen earned a Bachelors Degree in Landscape Architecture and minor in Horticulture from University Of Georgia. During his time at Georgia, he worked in public gardens, greenhouses, farms, and plant nurseries. On the weekends you may find him on the water with friends, gardening, or making music in Wade’s garage.

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Marissa Gigis, PLA

Landscape Architect

Marissa joined the OSD team in Spring of 2023 with experience in mainly high-end residential design. Born and raised in Charleston, she understands the typical garden styles and plant palettes associated with each part of town. Marissa is passionate about designed landscapes that seamlessly blend the site’s built architecture to its natural, surrounding landscape.

Marissa earned her Bachelors Degree in Landscape Architecture from Clemson University and is now a registered Landscape Architect in the state of South Carolina. When out of the office, Marissa enjoys boat days, watercolor painting, trying the latest, new restaurant and spending time with her family and pet bearded dragon.

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Our Clients

We believe that great clients truly make great projects possible. Thank you to all of our current and previous clients:

AMCS, Inc.

The Beach Company

Carson Homes LLC

CF Evans Construction

Charleston Yacht Club

The City of Charleston

Claflin University

Cline Engineering

The College of Charleston

Construction Professionals, Inc.

Daniel Island Club

The Daniel Island Company

Earthsource Engineering

Front Door Communities

Four Points Construction, LLC

Growfood Carolina

Headquarters Island HOA

Hoyt + Berenyi

Kiawah Partners

Lowcountry Leadership Charter School

Masonborough HOA

M. Brennan Architects

McMillan Pazdan Smith Architecture


Middleton Place

New Leaf Construction

Omatic Software

Orange Capital Advisors

Orangeburg Country Club

Oswald Cooke & Associates

Peninsula Family Dentistry

Poston & Co.

Ravenel Associates

Roman Catholic Diocese of Charleston

Saussy Burbank

Simmons Pointe HOA

SL Shaw & Associates, Inc.

Solomon Family Dentistry

Spivey Architects

Sweetgrass Pediatrics

Town of Daniel Island

Tyler A. Smyth Architects

Vinyet Architecture

Wando Point HOA

Westbrook Brewery

in addition to 300+ residential clients throughout the Southeast…