Preheat oven to 375°F. Line a loaf pan with parchment paper or grease with butter.
Mix flours, baking soda, baking powder, cinnamon, and salt in a large bowl.
In a separate bowl, add sugar, honey, yogurt, and eggs; whisk together until fluffy.
Melt coconut oil and allow to slightly cool; add to wet ingredients and mix well.
Gradually add wet ingredients to dry ingredients, mixing until just combined.
Grate zucchini and fold into batter; then pour into prepared baking pan.
Bake for 60-70 minutes or until a knife inserted in the middle comes out clean.
Allow to cool before serving.