Hope someone can give me an advice. NVC just forwarded my F1 application to the US embassy. My priority date is still not current. I live in an apartment building. However, I need to relocate to different unit within the same apartment building because my unit now needs some renovations. Can someone kindly tells me what should I do and will this cause another delay of my application already on the queue? Should I file for change of address even though it's on the same building but different unit? Should I call NVC for advice? Thanks for those who will respond.