The entire process, from the time you submit a marker application to delivery of the marker, can take six to eight months . The condition of the exterior is a factor when determining whether or not to award a marker. The markers awarded by Greater Portland Landmarks recognize the architectural and historic integrity of the building. If, due to exterior alterations, the building no longer meets the standards upon which the marker was awarded, the marker may be removed by Landmarks, after its board of Trustees has so voted and the owner of the property has been notified. To receive a Greater Portland Landmarks' marker, the date of construction and the name of the original owner must be determined for the building in question.
Landmarks encourages owners to do their own research.
Anyone attempting to pursue this is encouraged to consult Landmarks' publication Researching the Old House , which outlines the kind of research often necessary for this kind of project. It is also recommended that the owner check the files at the Frances W. Peabody Research Library located at 165 State Street.