With many states incentivizing housing built to Passive standard, everyone wants to know: are Passive-certified multifamily buildings really achieving better energy performance? The answer is yes. With many built multi-family passive projects throughout the Northeast, there are now multiple projects where we can look at actual energy performance data, sometimes over multiple years. Using Passive project data from MA and PA, we will compare post-occupancy performance and construction cost to similar above-code and code built projects. We will also share takeaways gleaned from applying this same comparative analysis to publicly available benchmarking data in Philadelphia. Learn how passive is much more consistently hitting the range of performance we will need to decarbonize new buildings and hit state and national climate targets. Hear how on target passive heating and cooling modeling and performance often is, while occupant driven plug-loads and hot water still can pose a challenge. Discuss simple strategies for collecting more and better data that can demonstrate whether projects are achieving superior energy savings and occupant comfort.