About our company

Since starting eSquared Lighting Design in 2003, we have designed and managed a wide variety of project types including residences, offices, retail, mixed use, worship, and landscapes. We have made a conscious decision to work on a wide range of project types instead of specializing in one architectural niche. This diversity keeps the team knowledgeable about the latest lighting techniques and technologies, bringing creativity and freshness to each project. We have a client-based approach to design that strives to create an atmosphere that is comfortable and seamlessly integrated into daily use.

Meet the Team

Erin Erdman

Owner & Lighting Designer

As the Principal of eSquared Lighting Design, Erin is involved in all phases of a project, from schematic design through construction and post occupancy. Her primary focus is to achieve the highest quality illuminated environments through effective communication with Clients and Design Teams to simultaneously meeting the Architect’s aesthetic desires, the programmatic requirements, and lighting budget.

Since starting eSquared Lighting Design in 2003, she has designed and managed a wide variety of projects including commercial, production and post-production spaces, residential, retail, places of worship, multi-unit dwellings, assisted living homes, building facades, and exterior landscapes.

In addition to an accomplished commercial design portfolio, she has developed numerous residential projects treating the owner-clients to her comforting and efficient management style. Her residential design work ranges from ultra-modern to mountain lodge vernacular and are located throughout the west, including Beverly Hills to Santa Barbara, Vail, Aspen, Telluride, and Steamboat Springs, Colorado.

Erin is a graduate of the University of Colorado’s Architectural Engineering program, which is nationally renowned institution for lighting education.

Lindsey Mackey

Lighting Designer

As a registered architect and lighting designer, Lindsey contributes a unique dual design perspective that enables her to quickly grasp big picture concepts and translate design intent into crafted details, ensuring that the lighting design reveals the essence of every project.  Her dedication to striving for personalized design solutions and a collaborative team-based approach is evident in her professional accomplishments over 15 years in the design industry.

Lindsey’s experience includes a diverse collection of site/landscape parks and plazas, building facades, urban master planning, hospitality, multi-unit dwellings, mixed use, retail, and high-end residences.  Her well-rounded expertise translates into the ability to enhance architectural features and add dimension with lighting as a medium, transforming spaces into experiences that connect people to their built environment.

Recent project highlights include an 8-acre exterior landscape for a high-end residence – complete with extensive walking paths, moments of reflection, water features, kids playground, and variety of gardens, a luxury multi-unit dwelling interior and exterior site composed of various courtyards and amenity spaces, and several building facades with complimentary entry plazas and roof decks throughout the Los Angeles community.  Completed relevant projects include a prominent hotel with conference center in downtown LA, a multi-building mixed use development in Houston, TX, and a performing arts center in Beverly Hills, CA.

Designing with care, Lindsey ensures a long-term commitment to clients and shares their unique vision and goals.  In tandem with design industry initiatives to share the benefits of quality lighting design, Lindsey actively supports the endeavor to implement lighting’s positive impact and create a sense of well-being catered to the population it serves.  Access to daylight and circadian lighting, energy efficient performance, and reducing light pollution in support of environmental preservation are integral components of her core values during design.

With multiple IES Illumination Awards spanning various market sectors, Lindsey aims for above and beyond in design, process, and execution of her work.  Lindsey advocates for sustainable design practices and is a LEED accredited professional with BD+C specialty.  She is also Lighting Certified with an LC credential to demonstrate her commitment to the lighting profession and advancements with ongoing continuing education.  Her foundation with BIM technology stems from project-based experience as an Architect and she has spearheaded the implementation of Revit into the firm’s current workstream, supporting multidisciplinary teams to efficiently maintain a synced process.

Gabby El Sayad

Lighting Designer

For Gabby, lighting design has always been magical because of its ability to tell the story of a building, transform a space, enhance the human experience, and highlight cultural influences.

With eight years of experience in the design industry, she uses her background and personal experiences as the essence of her design. Gabby has a Bachelor of Science and a License in Architecture and Urbanism in Brazil and has achieved her Master’s in Fine Arts in Lighting Design from Parsons The New School of Design in New York City. Gabby has lived in Brazil, Switzerland, New York City and currently, Los Angeles, and has traveled around the world exploring different cultures, people, architecture, and design approaches.

With a background in Urbanism, she is able to analyze the project in association to where it is located, understanding how people will interact with the space, their values and culture. With a background in Architecture, she is able to comprehend and react to carefully designed spaces. With Interior Design as past work experiences she is able to observe details and collaborate with ideas to create subtle interactions between light and space. This unique diversity of disciplines together help her design memorable spaces.

Her experience as a designer includes an internship with the renowned architect Frank Gehry, where she learned from an architectural perspective how to work on unique projects that needed to be executed with the highest standards. Her experience as a lighting designer includes a diverse range of projects in hospitality, high-end residences, offices, mixed use, retail, parks and performing arts in the United States, Asia, Latin America and Europe. Relevant projects include: Downtown Commons Sacramento/ Kimpton Hotel in Sacramento, Music Center Plaza in Downtown LA, Blackfriars Hotel in London, Dreamland Resort in China, Great Park Neighborhood in Orange County, Ritz Carlton Bacara Hotel in Santa Barbara.

Gabby’s experience as well as her background allow her to design spaces that seamlessly integrate lighting, architecture and urban environments. Always seeking for creativity, beauty, functionality and comfort, she aims to design quality and meaningful lighting projects that satisfy the client, have a collaborative effort between multidisciplinary teams and have a positive impact in the surrounding neighborhood.

Anne E. McMills

Theatrical Lighting Consultant

Anne E. McMills is a theatrical lighting designer. Her far-reaching career extends across the many facets of the lighting world—from theatre, including Broadway and the West End, to television and theme parks to architecture, industrials, concerts, award shows, dance, and opera. In addition to her own projects, Anne has worked extensively as a Broadway associate, mounting productions in the United States, the U.K., Japan, Australia, and Germany.

Anne achieved her MFA degree in Lighting Design from Mason Gross School of the Arts at Rutgers University in New Brunswick, New Jersey, and is a proud member of United Scenic Artists, Local 829.

Additionally, Anne is the Head of Lighting Design at San Diego State University and is also the author of The Assistant Lighting Designer’s Toolkit (ALDToolkit.com ) and 3D Printing Basics for Entertainment Design (3DPBasics.com ).

Colby Freel


Colby Freel is a designer with a diverse lighting background. In addition to architectural lighting, he has experience working in all areas of lighting for entertainment including plays, musicals, ballet, contemporary dance, and concerts. Colby received his Bachelor of Arts in Theatre: Design and Technical Theatre from the Department of Theater and Film at the University of Alaska Fairbanks in Spring of 2019. In May of 2022 he received his M.F.A. in Lighting Design and Technology at the School of Theatre, Television and Film at San Diego State University.