The term 'SOME BUILDING ADDITIONS' can be solved by the four-letter word 'ELLS', which stands for 'Extensions, Loft Conversions, Landscaping, and Solar Panels'. These are all additions that can be made to a building in order to improve its functionality or aesthetic. Extensions are additional rooms or floors added to a building, loft conversions involve converting an attic space into a usable room, landscaping involves improving the outdoor area of a building, and solar panels are used to generate electricity from the sun's energy.