Abstract
In October 2021 a series of field surveys were performed in the gminy (communes) of Grajewo and Rajgród in north-eastern Poland, to assess the present-day occurrence of old semi-vernacular buildings that had been made with unique materials or unconventional structures. The secondary objective was to develop and test the best methods of recording such buildings, assuming that they are an important part of the local architectural heritage. Eventually, six rammed earthen buildings and two cordwood masonry houses were found, assessed and recorded. However, the authors failed to find two other cordwood masonry buildings that had been mentioned in earlier writings. Old hollow brick buildings were also found and mentioned as important elements of rural landscape due to their ornamental values.