Lighting should be an important consideration in the design process, whether it is for a total new house design or renovation to existing space. Early planning of lighting needs will importantly provide improved functionality, ambience and added value.
A very important aspect of house lighting design is an understanding of the light source options that are available. After all, it is primarily the light source that determines the quantity and quality of light " not the light fitting.
Remember as the design is being formed you will need to be thinking about both natural and artificial light in each room.
The specific amount will depend on many factors including the orientation of the window and use of the room.
Each room and space should be carefully considered and planned, taking into account such factors as;
General area lighting
Task lighting
Feature lighting
Types of light fittings
Types of natural light " windows, glazed skylights (attic or ceiling windows), tubular skylights or glass bricks
Positioning of light sources
Types of artificial light " incandescent, halogen, fluorescent, metal halide
Design 
