The value of the real property is created, maintained, modified or destroyed by the interaction of 4 major influences behind the activities of human beings. These are; the ideals and social standards, adjustments and economic changes, political or governmental laws, and forces physical or natural; and these influences create pattern variables to values of real estate. Each influence is dynamic. Combined, are the essence of cause and effect, interlaced become vast and always changing action that surround and influence to all good root.
Influences that create value
1. The growth or population decrease.
2. Changes in population density.
3. Changes in the composition of families numerical.
4. The social geographical distribution.
5. Attitudes towards educational and social activities.
6. Attitudes towards architectural design and usability changes.
7. Other factors arising from the desires and instincts of the society.