One of the responsibilities of an interior designer is to create a cohesive plan throughout a home. This beach house located in The Hamptons is ridiculously large (12,000 square feet) but the interior designer was still able to design a warm, inviting environment using a beautiful blend of organic textiles, finishes, space planning and furnishings. See more images here. Starting with a strong concept can make all the difference in the world. Interior designer Tamara Magel was inspired by European farmhouses.