Urban renewal always involving substantial interest allocation. Basing on lack of information, promotional environment uncertainty, landlords and implementers have significant perception gap in relationship of trust and laws. Therefore, when one party (the perpetrators) have more information than the other party (land rights), often causing distrust between the perpetrators and land rights, this also make negotiation waste too much time, and the results are often assigned as expected, eventually making all more cases can only be terminated, and even lawsuits. In this study, combined with land development spreadsheet, implementers’ costs and urban renewal laws to construct a financial model. This model aim to estimate the equity value of the two sides, the reduction of the information gap and reduce the distance bargaining agreement, enhance the probability of urban renewal success.