Dataset provides information about the assessment of concrete prior to demolition works. Data include Schmidt hammer testing, concrete core testing, and initial and final estimations of concrete volumes, performed in the slaughterhouse in Sortland, Norway for material mapping. Data about the Schmidt hammer testing connect to the figures in the folder "Initial_assessment", concrete core testing is presented in figures in the folder "Concrete_cores", and material mapping is graphically presented in folder "Material_mapping".