Lisa Luttrell

Director of Design Services


Lisa Luttrell leads Casco’s Design Studio with over 25 years of project manager experience at various Orange County design firms. In Casco’s Design Studio Lisa oversees the work of the design staff, serves as a designer for complex projects, and presents and amends client’s designs. Her responsibilities start with the client’s consultation, to the proposal and continue throughout the project completion for both interior and exterior jobs.

Lisa Lettrell Casco Design Studio Director of Design Services

Cheryl Osborn

President & Founder

Cheryl Osborn is the President and Founder of Casco Contractors, Orange County’s Top Choice for Commercial Tenant Improvement Construction and Design Solutions. Cheryl’s vision has always been to understand the changing needs of her customers, turn their dreams into reality, and create a growing partnership to guarantee absolute satisfaction. With over 30 years of construction experience Cheryl’s integrity, transparency, and high standards leads her team to success as well as sets a great example to her employees.

Cheryl Osborn President and Founder Casco Contractors and Casco Desgin Studio

Andy Magana

Sr. Exterior Project Manager

Andy has been working in the tenant improvement construction industry for over 15 years.  He has developed and applied standards for Exterior Accessibility Upgrade & Electric Vehicle Charging Station projects for over 200 Irvine Company Office and Retail Properties throughout Orange County, San Diego, and Los Angeles.  Andy manages and mentors a team specializing on exterior upgrades for any and all commercial projects.  He has a strong hands on approach in the field working with the GCs, inspectors and various consultants as needed.

Melinda Toka

Interior Project Manager

Melinda has over 15 years of experience on an array of project types including commercial tenant improvements, medical, retail, sports parks, residential, hospitality and mixed use. As a project manager she has carried projects from programming, through schematic phase & design development, construction documentation and administration. She takes great pride in her work and cultivating client relationships. 

Melinda Toka Casco Design Studio Interior Project Manager

Edgar Villa

Design Services Manager

Edgar has 19 years of experience in commercial tenant improvement projects ranging from minor office redesign, full floor buildouts to complex lab implementation.  As a manager, he has the ability to work through all phases of a project starting with the initial job walk to the final punch walk. He is excellent at overseeing architectural and MEP development of construction documents including due diligence, specifications, permitting, and construction administration.

Edgar Villa Casco Design Studio Design Services Manager

Rad Vach

Exterior Designer III

Rad has over 28 years of experience in various disciplines of architecture and office systems furniture design. For the last 6 years Rad has designed exterior site work related to ADA compliance and EV charging stations. He has performed duties on all aspects of projects relating to successful build outs of commercial tenant improvement space as well as ADA compliance of exterior site work.

Rad Vach Casco Design Studio Exterior Designer III

Anthony Tumminia

Exterior Designer II

Anthony has over 14 years of experience working on various aspects of commercial real estate improvements. For the last 4 years he has expanded his experience into exterior site work relating to ADA compliance and EV Charging stations. He is highly skilled and experienced with CAD drafting, field verification, city submittal and permit issuance as well as coordination with engineers and construction to make the project a real success.

Anthony Tumminia Casco Desgin Studio Exterior Designer II

Nancy Johnson

Designer II

Nancy has experience in commercial and residential projects ranging from minor tenant improvements to full floor, high-end build-outs.  As a designer, she has worked through projects from programming to the schematic phase, to design development and through construction documents.  The diverse project experience she has received allowed her to develop and cultivate her design skills in order to adapt and support all disciplines of any clientele.

Nancy Johnson Casco Design Studio Designer II

Ashley Eckenrod

Designer I

Ashley has over 5 years of experience as a Designer in both Commercial and Residential Interior Design.  Her experience includes executing projects from start to finish with skills in Space Planning, Design Development, Construction Documentation, FF&E Specifications, Material and Finish Specifications, 3D Rendering, and Permit Processing.

Ashley Eckenrod Casco Design Studio Designer I

Jesus Barajas

Designer I

Jesus is a highly skilled designer whose strengths include detailed field verification, construction documentation and permit coordination in both interior and exterior tenant improvements.  He enjoys new challenges and strives to keep up on new technology.  Jesus is an active participant in every stage of the project he works on.

Jesus Barajas Casco Design Studio Designer I

Anna Jenkins


Anna is a highly motivated interior design professional. Her expertise encompasses commercial, residential and some hospitality design with a strong ability to deliver visually appealing solutions based on maximum productivity for projects entrusted in. Her skills include space planning, finish selection, field verification, plan documentation and permit coordination.

Anna Jenkins Casco Design Studio Designer