The Socioeconomic and Data and Applications Center (SEDAC) has some examples using predetermined sea level rise heights and digital elevation models (DEM) at a global level: http://sedac.ciesin.columbia.edu/data/collection/lecz/methods
You may be able to replicate their approach with a higher resolution DEM and obtain a more precise visualization for your study area.
If you are an ArcGIS user, I have some models that may be of use.
You need a DTMI - digital terrain model infrastructure, it is an high resolution dem with all infrustructure well filtered in a way to define better flow of water. Then you need Socioeconomic data to analyse vulnerability and landcover to define mannings for hydraulic modeling. You can adopt Sobek modeling to obtain output of model which can be then opened in arcgis to assess the risk assessment and costs.