A large six-story development on 44th street and 4th Avenue that’s going to be an 80-unit affordable housing complex for seniors appears to be nearly complete. The Sunset Park project was spearheaded by Lutheran HealthCare and helped along by contributions from HUD and the borough president’s office. What’s striking about this building is how quickly it went up, rising much quicker than most private developments on our radar. The complex was originally scheduled to open sometime next month, and it seems like it might have a shot of making that target. GMAP