Seaport Hotel is a waterfront hotel and wedding venue in Boston, MA, set along Boston Harbor in the heart of the Seaport District. With five distinct ballrooms and a glass-walled Wintergarden Atrium for ceremonies, the AAA Four Diamond property pairs harbor and skyline views with 27,000 square feet of flexible event space. With 428 on-site guest rooms and outdoor garden spaces for cocktail hour, it hosts weddings and corporate events from intimate gatherings to celebrations of several hundred guests.
What makes Seaport Hotel a standout Boston wedding venue?
Range and water views set it apart. The contemporary two-level Lighthouse Ballroom brings 22-foot ceilings, a wall of floor-to-ceiling windows over the harbor and skyline, and a connecting glass staircase between its two levels, with an LED lighting program built into the room itself. The elegant Plaza Ballroom offers its own dramatic wall of harbor-view windows plus the outdoor Plaza Garden and a covered loggia for pre-function socializing, while the more intimate Flagship Ballroom looks out over the Boston Fish Pier and harbor for a smaller wedding or rehearsal dinner. Couples say their vows in the light-filled Wintergarden Atrium before moving to a garden cocktail hour and a ballroom reception, so the whole day can unfold across water-view spaces without ever leaving the property. Reviews consistently praise the wedding coordinators by name for calm, detail-oriented planning, from the first tour through the wedding weekend, and guests routinely call the catering some of the best they have had at a wedding. With a rooftop herb garden supplying the kitchen, an in-house spa, and a full weekend of on-site dining, the hotel makes it easy to build out rehearsal dinners, welcome parties, and a post-wedding brunch without guests ever needing to leave.
Lodging and parking
Seaport Hotel offers 428 on-site guest rooms and suites, so the wedding party and out-of-town guests can stay exactly where the celebration happens, with easy access to getting-ready rooms and the hotel’s other on-site amenities. Both valet and self-parking are available in the hotel’s 2,300-space underground garage, accessible from Seaport Boulevard, B Street, D Street, and Congress Street; parking is subject to a nightly fee, so confirm current rates directly with the hotel. A glass-walled ballroom over the harbor rewards lighting that plays off the water and skyline views, which is where Black Diamond comes in.
How does Black Diamond produce events at Seaport Hotel?
A two-level glass ballroom over Boston Harbor rewards lighting that complements the water and skyline views and the room’s own LED program rather than competing with it, all on fixtures suited to the space. We bring custom uplighting and run sound that carries a Wintergarden ceremony into a garden cocktail hour and a ballroom reception. Our DJ and MC talent keeps the floor moving, photo booths add a keepsake, live musicians set the tone for the ceremony and cocktail hour, and our photography and videography team captures the harbor views, the Plaza Garden, the glass staircase, and the Fish Pier from the Flagship Ballroom. For the meetings and corporate events the hotel’s 27,000 square feet of function space regularly hosts, we bring full corporate event production.
Common questions about weddings at Seaport Hotel
Where do ceremonies take place? Indoors in the light-filled Wintergarden Atrium, or outdoors in the Plaza Garden or Lighthouse Garden, with harbor and skyline views throughout.
What is the rain plan? If an outdoor garden ceremony or cocktail hour needs to move, the hotel’s indoor ballrooms and the Wintergarden Atrium step in seamlessly, so the harbor views stay part of the day either way.
How many guests can it hold? The Lighthouse Ballroom seats up to about 300 across two levels, the Plaza Ballroom scales up for larger celebrations, and the Flagship Ballroom suits more intimate weddings and rehearsal dinners.
Does Black Diamond do corporate events here too? Yes. The hotel’s 27,000 square feet of meeting and event space regularly hosts corporate meetings and events, and we bring full corporate event production.