The 3-5-7 Rule: Our Secret Weapon for Effortlessly Styled Interiors

Ever styled your living room, stepped back, and thought… something’ doesn’t feel right? You’re not alone. The secret to those perfectly balanced interiors you see all over Pinterest often comes down to one simple design principle — the 3-5-7 rule. It’s easy, and perfect for creating that relaxed, modern kiwi interior designed vibe.

What Is the 3-5-7 Rule?

The idea is simple: style in odd numbers. Grouping items in sets of three, five, or seven creates natural balance and visual flow. Even numbers tend to feel a bit too structured, while odd numbers feel organic and balanced. Now this will work for many scenarios - styling cushions, buffet units, bookcases. It’s not rocket science, just start with three, and add more as you need it. I would hardly use 7 unless you have a large space for it!

-Laura Heynike