Preserve – To maintain a structure’s existing form through careful maintenance and repair.
Reconstruct – To re-create an historic building that has been damaged or destroyed; to erect a new structure resembling the old using historical, archaeological, architectural documents.
Rehabilitate – To repair a structure and make it usable again while preserving those portions or features of the property that are historically and culturally significant. For example, rehabilitation might include an updated kitchen while retaining the historic stairwell and fireplaces. Most common approach for private houses.
Remodel – To change a building without regard to its distinctive features or style. Often involves changing the appearance of a structure by removing or covering original details and substituting new materials and forms.
Renovate – To repair a structure and make it usable again, without attempting to restore its historic appearance or duplicate original construction methods or material.
Restore – To return a building to its form and condition as represented by a specified period of time using materials that are as similar as possible to the original materials.
Stabilize – To protect a building from deterioration by making it structurally secure, while maintaining its current form.