Senior Level Guidance for interior designers
Interior Design Education
Learn the craft.
Elevate your practice.
Whether you're finding your feet or refining your signature style, Design Principal gives you the knowledge, tools, and guidance to work with more confidence — and create with more intention.
"Great design starts with understanding the rules — and knowing when to break them."
Founded by Louise Rea, an interior designer with three decades of experience across luxury residences, boutique hotels, and bespoke interiors, Design Principal exists to share what actually works. Not theory — the real processes, refined over years of delivering exceptional spaces at the highest level. Now distilled into courses, templates, and mentorship you can put to work immediately.
What we offer
Three ways to work
with Design Principal
01
COURSES
Structured, in-depth learning designed to take you from principles to professional practice. Each course is built around real-world process, not just inspiration.
02
TEMPLATES & TOOLS
Professional design documents — from FF&E schedules to client presentation templates — built from the same tools used on high-end residential projects.
02
MENTORSHIP
A focused, one-to-one programme for designers ready to accelerate. Tailored guidance, real feedback on your work, and a clear plan for what comes next.
Interior Design Education
Senior-level insight,
made accessible.
After three decades designing at the highest level — from London townhouses to international hospitality projects — Louise created Design Principal to share the knowledge that isn't taught in design school. The processes that make practices run smoothly. The judgment that makes spaces feel right. The confidence that only comes with experience.
This is that experience, made available to you.
Words from the Design Principal community.
What Designers Say
"Working with Louise changed how I approach every project. The mentorship gave me clarity I'd been searching for for years."
Gemma Forster, Sussex
"The templates alone saved me hours on my first client project. Professional, thoughtful, and exactly what I needed."
Sophie Clement, London
"Finally, design education that respects your intelligence and gets to the point. I wish I'd found this sooner."
Tim Porter, Studio Porter
Stay close to the work you love
