In Unbyn there are many remains from the middle of the 17th century, mainly in the form of settlements and house foundations. In the 19th and 20th centuries, agriculture developed rapidly. Through land reform and mechanization, farming became more efficient and could be carried out on a larger scale. With the establishment of an agricultural school in Avan, the development of Unbyn was quickly introduced to new ideas and methods.

History can be read in both the landscape and the buildings. The older houses (both semi-detached and detached) are built in timber, are long and narrow with marked knots, low roof angles and with different shaped windows on the ground and attic levels. The smaller detached houses from the early 20th century are more compact, have a higher roof angle and often a dormer window. The oldest part of the village has the character of a terraced village. The landscape is dotted with barns and ditches, and the farmland is sandwiched between houses and farms.

Until the 1970s, Unbyn was a predominantly agricultural area. With increased demand for rural housing, the Brinjan residential area was created, attracting new families with children in particular.

There are currently plans to increase the number of single-family plots in natural settings.