When a new house is built in Avalon, ground-level surveys of the surrounding properties must be conducted to determine that the new house, after it is constructed, and landscaping on that property, will not cause flooding of neighbors' properties. If it is determined that there is such a risk, the plans for the new house or the landscaping must be revised. This proves conclusively that landowners' rights are not absolute. No, a landowner may not do anything he or she wants with his or her property. Zoning laws and building codes demonstrate the same fact.