About 2018-06-29T20:57:15+00:00


We will design and build your dreams! We are a full-service design and build firm, specializing in interior design, additions, renovations, kitchens, bathrooms, home theaters, and more. Designs by Mark unites award-winning design services with quality craftsmanship – from the initial design phase, through construction and to completion.

Designs by Mark Inc. is proud to be a trusted interior designer, who transforms your home remodeling visions into professional, beautiful and affordable reality. With a solid foundation of interior design and home contracting/construction experience, the goal is to create unique interior design and home remodeling solutions.

Mark Oser, owner of Designs by Mark, Inc., is a graduate of Philadelphia University (formerly Philadelphia College of Textiles and Sciences) with a degree in interior design. In addition, Mark has studied at the Cheltenham Art Center to further his artistic abilities and education.

Working as an interior designer since 1989, Mark is an allied member of the American Society of Interior Designers (ASID). During his career, he has had the honor of winning various Design Excellence Awards, as well as being featured in Luxury Homes Magazine as the winner of the “Best of the Best,” for Home Theater and Lighting Design. Mark has also been a featured designer on HGTV.

Designs by Mark, Inc., creates one-of-a-kind environments and space planning that appeal to the senses. Your new space will not only look good, but feel good too.

Mark’s projects vary in size from a single room in a modest apartment to multi-million dollar estates. In some cases, the project is designed as a master plan to be carried out over several years as funds become available. Using a master plan insures that as each room is completed, it will eventually become part of a well-coordinated design for the whole home.

Mark  team consists of a variety of painters, cabinet makers, stone masons, carpet installers, carpenters, plumbers, electricians, and other craftsmen to perform the variety of work necessary to carry out his designs. Mark recognizes that their performance reflects directly on his reputation and takes pride in their work and his client’s satisfaction.

Mark Oser



  • ASID Award for Excellence-Residential Design Under 3500 sq.ft – HM.

  • ASID Award for Excellence-Residential Design Under 3500 sq.ft. – 1st place

  • ASID Award for Excellence-Residential Design Under 3500 sq.ft. – 3rd place

  • ASID Award for Excellence-Singular Space – 2nd place

  • Homebook Design Excellence Award-Custom Furniture – Silver

  • Homebook Design Excellence Award-Home Theater Design – Gold

  • Homebook Design Excellence Award-Lighting – Gold

  • Luxury Homes best of the best lighting design

  • Luxury Homes best of the best home theater

Let’s turn your dream into a reality