Katharine Posillico McGowan has been involved in the design world for over 20 years. She launched Katharine Jessica Interior Design in 2003. KJID is multi-faceted boutique firm specializing in both residential and commercial projects. Katharine oversees the planning of each project from the start of construction through the finished product. Katharine's attention to detail, ability to mix finishes and materials, has led to the creation elegant spaces that are functional and stylish. Her services span the tristate area where she has a strong following on the Gold Coast of Long Island.