At Design Principalwe believe that great interior design starts with understanding the rules—and knowing how to break them creatively.

Founded by Louise Rea, an interior designer with decades of experience designing luxury residences, boutique hotels, and bespoke interiors worldwide, Design Principle helps aspiring and emerging interior designers turn their passion into professional skill.

With her team, Louise has established tried-and-tested processes that streamline design, empower creativity, and ensure exceptional results—insights she now shares through courses, practical templates, and expert guidance to help students build confidence, refine their style, and bring spaces to life with purpose, beauty, and sophistication.

Whether you’re just starting out or looking to elevate your practice, Design Principle is your partner in design mastery.