Light on Two Sides

When they have a choice, people will always gravitate to those rooms which have light on two sides, and leave the rooms which are lit only from one side unused and empty.

Entrance Room --> HERE Long Thin House --> HERE HERE HERE --> Half-Open Wall HERE --> Greenhouse

Locate each room so that it has outdoor space outside it on at least two sides, and then place windows in these outdoor walls so that natural light falls into every room from more than one direction.