Building restoration
Building restoration describes a particular treatment approach and philosophy within the field of architectural conservation. According to the U.S. Secretary of Interior's standards, "Restoration is said as the act or process of accurately depicting the form, features, and character of a property as it appeared at a particular period of time by means of the removal of features from other periods in its history and reconstruction of missing features from the restoration period. The limited and sensitive upgrading of mechanical, electrical, and plumbing systems and other code-required work to make properties functional is appropriate within a restoration project." In the United States restoration is different from preservation (American English, conservation in British English) by allowing the removal of historic materials to create an accurate portrayal of a particular time period, not necessarily the original or final time periods.
Overview
In the field of historic preservation, building restoration is the action or process of accurately revealing, recovering or representing the state of a historic building, as it appeared at a particular period in its history, while protecting its heritage value. Restoration work may be performed to reverse decay, or alterations made to the building(s)