Historical appraisal in Palo Verde is strongest when the selected period is treated as its own market rather than as an old version of today's value. Irrigation, fencing, soil use, outbuildings, and functional open area can contribute differently from acreage that offers little additional residential utility. The earlier period should be treated as its own market rather than viewed through today's completed development and remodeled housing stock.
Historical valuation should not be a current value pushed backward by a percentage. The assignment needs evidence from the selected period, including the subject's condition, property rights, competitive setting, and the alternatives buyers actually had. For Palo Verde, the appraisal should consider private infrastructure only when it changes the subject's competitive position.
During the historical period, irrigation, fencing, soil use, outbuildings, and functional open area can contribute differently from acreage that offers little additional residential utility. Period-specific records and sales are more useful than present-day assumptions when this characteristic changed over time.
An old sale is not automatically a good historical comparable. The appraiser should understand the transaction, the neighborhood stage, the property's condition, and whether the sale reflected the same residential market during the period being studied.
Historical maps, listings, permits, photos, and ownership records can prevent later development or remodeling from being projected backward. The strongest record links those documents to market evidence from the same period.
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