Barrett Oswald Designs is an award-winning interior design firm that was founded in 2015 by Barrett Oswald and MaryBeth Long. Located in Larchmont, NY, we also proudly serve the Greater Westchester County, Fairfield County, New York County, Monroe County, Rochester County, Kings County, Bronx County, Queens County and Duke County in Massachusetts areas. We specialize in creating stylish yet realistic homes, all without sacrificing comfort or design. As parents to energetic children, we understand the importance of balancing character, convenience and functionality to create a lived-in, loved-on home. Barrett's work has been featured in magazines such as Westchester Home, Serendipity, and Luxe Magazine. Our firm was voted Best of Westchester four times and has received multiple awards from Houzz and Westchester Magazine, including the best Whole Home Design for 2019 and 2021.

E. Barrett Oswald, Partner
Principal Designer

Barrett has always had a passion for style and design. Her love of interior design has been a natural progression – from a teenager who mixed toile wallpaper and band posters in her bedroom, to a graduate of the Fashion Institute in NYC, and eventually to the stylist of a commercial, oceanfront condominium in Florida. Her taste has matured over time (no more band posters!), but she continues to interject her personality into room schemes by mixing styles, patterns and textures.

In her downtime, Barrett can be found spending time with her husband and sons, scouring Pinterest for new design ideas and crockpot recipes, or (most likely) getting lost in Home Goods. 

MaryBeth Long, Partner
Director of Business Relations

Prior to joining Barrett Oswald Designs, MaryBeth served as Manager of Legal Recruiting at a top tier law firm in New York City. Her degree in Economics and Art History enables her to balance style with functionality while remaining cost conscious.

MaryBeth's appreciation for interior design started when Barrett helped her create a calm, clean, and contemporary home balanced by the functionality she required to raise two young daughters. She's a self-professed foodie, an avid organizer, and an impressive bargain shopper (a quality her husband greatly appreciates).

Martha Arndt
Interior Design Assistant

Before joining the team, Martha held various roles across several residential and hospitality firms in Manhattan. Her love of math and the arts led her to pursue an MFA in Interior Architecture, where she learned the importance of effective home design to suit the individuality of each family's needs.

Although she lives in Manhattan, she loves experiencing the fresh air and abundance of beautiful homes in Larchmont. Martha spends her spare time searching for gems on 1stDibs, antique shopping around the city, and volunteering at the ASPCA.