This renovation and addition to a 100-year-old synagogue on Lexington Avenue restored the historic building to its former grandeur while accommodating contemporary needs. The project integrated the synagogue with an adjoining townhouse, incorporating new circulation between the different floor levels of the separate buildings. The newly combined structures house a Sanctuary, multi-purpose social hall, kitchen, daycare center, chapel, library, offices, and an apartment for the caretaker. The grand exterior staircase of the original building, demolished when Lexington Avenue was widened in the 1930s, was recreated in the new interior, with a double-height vestibule leading to the Sanctuary above. This vestibule now acts as a transition between the secular city and the spiritual space of the synagogue. The renovation included restoring historic detailing in the Sanctuary, cleaning the stained glass and skylights, and repointing the original bricks on the exterior facade.