The easiest way to achieve good solar passive design at minimum cost to you is to select a site that has the appropriate orientation so that your home can work with the climate, rather than against it.

Orientation is about the position of your site, and your house, in relation to the things around it. These include the street, neighbouring buildings, the angle of the sun and the wind that will be used to heat and cool your home.
You can achieve good solar performance at minimal cost if your site has the right characteristics.

If you are interested in site orientation, download the For more information on orientation.