At The Mansion on Delaware Avenue, your dedicated events team lifts the weight from your shoulders for a seamless day of ease, elegance, and celebration. Exceptional engagement parties, reflective rehearsal dinners, extraordinary wedding receptions, and guestrooms will bring both families together. Skilled wedding coordinators attend to every detail so your event runs smoothly. The Mansion on Delaware Avenue is a 19th-century property designed in the Second Empire style. This stunning locale features towering 15-foot-high ceilings, almost 200 windows, numerous architectural details, and elegant contemporary touches of decor. As a venue, it can host up to 168 seated or up to 200 standing people. The pinnacle of Hotel weddings is the Whole Hotel Wedding. The Mansion on Delaware Avenue is unique among wedding venues in Buffalo, NY, because your wedding is the only event of the day.