The current FEMA Special Flood Hazard Area (SFHA) base flood elevation here (corresponding with the water elevation of a 100-year flood, or a 1% chance of flooding in any year) is 16.5'. To be safely clear of this FEMA 100-year flood level, the Climate Ready South Boston Report recommends a 20.5' flood barrier along this stretch of Fort Point Channel. This project is being built with a minimum level of flood protection at 21'. The ground floor elevation of the building itself is at 20.5', and the landscaped floodwall along the front of the building is at 22'. I don't know the elevation of the old seawall along Fort Point Channel, but if I had to guess I'd say it was probably more in the area of 10'.
Are FEMA BFEs expected to increase in future years? Yeah, for sure. But this building is taking that into account. Even if a future storm floods this area 4 feet above a current 100-year storm, this building will stay dry.
I maintain that the new buildings along this stretch are being designed with low-key smart resiliency that doesn't jump out in your face but is sneakily still there when you start paying attention and looking for it.