You will live in an area with a specific climate of rainfall temperature extremes. Where there are buildings, fences and large trees and shrubs, all these will influence the climate in your garden to make microclimates.
The microclimate or environment of any garden depends on the rainfall, temperature range, radiation of light and heat, light and shade, humidity, wind, slope, position of nearby structures and ground cover and orientation.
Areas under the eaves maybe hot and dry or cool and dry. Garden beds near paving will be warmer than those near the lawn or out in the open.
To make your garden and planting water efficient you should make use of the microclimates. Modify them if necessary and match the correct plants to the conditions. If you choose plants that suit all the different microclimates on your block they will grow much better and their water needs will be reduced. Because they are growing well and not under stress they will need much less attention and you will have more time to enjoy your garden.
Understanding some of the reasons for your microclimates and how they work can help make your planning a success and make your garden much more water efficient. You can influence and change a number of the features of the microclimate and use them to your advantage when planting and designing.