Project teams make several decisions while designing and building construction projects impacting customer value. Most decisions are made without deliberate attention and based on the present individual’s knowledge and experience in order to comply with an often unrealistic schedule. However, some decisions require deliberate considerations and cross-disciplinary review. What might seem insignificant for one discipline might have a huge impact in other parts of the scheme. We claim that values (beliefs) impact decisions and thereby the value (outcome). This paper explores how Choosing by Advantages (CBA) supports the making of deliberate decisions based on values and thereby helps to deliver value for a project. Based on a literature review, this paper will discuss procedures to make cross-disciplinary decisions using CBA principles to deliver value.