Homeowner Kol Peterson provided these photographs of his appealing shingled cottage. It is an accessory dwelling unit (ADU), a small house built in the back yard of an existing house. ADU’s go by many other names as well…carriage house, laneway house, backyard cottage, granny flat. ADU’s are often occupied by relatives of the property owner, for example allowing an aging parent to live semi-independently but with support nearby. Other ADU’s are rented out, providing an affordable alternative to apartments.