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Venues in Old Westbury, NY,
(516) 686-7675

About Us

NYIT de Seversky Mansion is an elegant wedding venue located in Old Westbury, New York, on Long Island’s historic Gold Coast. The early 20th century mansion is the perfect setting to host one of the most exciting days of your lives. Our experienced event specialists at NYIT de Seversky Mansion will be with you every step of the way throughout the entire planning process, assisting you in creating the fairytale wedding you have always dreamed of from beginning to end.

Facilities and Capacity
NYIT de Seversky Mansion can accommodate up to 280 wedding guests in its vintage indoor and outdoor event spaces based on the reception styles. There are several locations on the beautiful property where couples can celebrate their special day with the their loved ones. The mansion’s entrance hall is a gorgeous space to first greet your guests in style on your wedding day with its grand staircase and mosaic inlays. The Garden Room is a bright and festive space that can be transformed into an elegant reception room by night. The newly-restored Dining Room is one of the mansion’s larger spaces and it features its very own bar. The elegant and refined Terrace Room is ideal for intimate gatherings. Meanwhile, the venue’s Ballroom is perfect for grand ceremonies or receptions, featuring magnificent vaulted ceilings and breathtaking views of the mansion’s east lawn. Couples may also wed outside on the NYIT de Seversky Mansion’s patio, on the perfectly manicured lawns, the mansion’s gorgeous grounds and inside its gorgeous galleries. The mansion also features a sophisticated bridal suite where the wedding party may relax and prepare for that memorable walk down the aisle.

Services Offered
NYIT de Seversky Mansion is a full-service venue that is available for hosting bridal showers, baby showers, corporate galas, meetings and events, engagement parties, wedding ceremonies and receptions, as well as many types of milestone photo shoots and film shoots. The beautiful mansion only hosts one wedding per day, offering couples and their guests free range of the property. On the day of your wedding, the event staff will take care of all of your needs and wants so you can sit back, relax and enjoy the special moments with the ones you love. NYIT de Seversky Mansion offers onsite parking and valet service. The mansion is also a wheelchair accessible venue.

NYIT de Seversky Mansion offers in-house catering services to couples planning their nuptials. The mansion’s dedicated culinary team prepares delicious meals using seasonal and local flavors throughout the entire year. They will accommodate all of the dietary and nutritional needs you and your guests may have during your cocktail hour and reception.

Devon Chen

5 out of 5
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  • It's hard to say what the absolute best part about hosting our wedding with NYIT de Seversky was. The groom's family, who loves historic places and beautiful architecture, would probably tell you it was the gorgeous mansion, well-maintained grounds, and picture-perfect ceremony location options. The guests would probably say the food-- there was so much food and every course was something you'd expect from a restaurant or award-winning caterer. As the bride, though, I think the best part was the endless support and expertise I had access to, and the immense flexibility and capability of the talent in house. I chose not to use a wedding planner, despite having a very busy work schedule and not being physically on Long Island most days of the month, because I got overly ambitious and way over-estimated how long I'd continue to find wedding-planning fun for. The only reason I didn't regret it? De Seversky made every idea I had a dazzling reality. Custom escort card displays... a surpr... Read more

    Frequently Asked Questions about Venue

    Do you have a site fee for wedding receptions at your venue?


    What is the starting site fee for wedding receptions during peak season?

    $ 5,000.00

    What is the starting site fee for wedding receptions during off-peak season?

    $ 5,000.00

    Do you have a site fee for wedding ceremonies at your venue?


    What is the starting site fee for wedding ceremonies during peak season?

    $ 1,795.00

    What is the starting site fee for wedding ceremonies during off-peak season?

    $ 1,795.00

    Which of the following are included in starting site fee?

    Bridal Suite, Chairs, China, Clean Up, Event Planning, Flatware, Glassware, Linens, Parking, Set Up, Tables

    Which of the following are included in the cost of wedding catering?

    Cake Cutting, Dessert, Server(s)

    What is the starting price per person for bar service?

    $ 25.00

    Which of the following are included in the starting price for bar service?

    Bartender(s), Champagne Toast, House Beer, House Liquor, House Wine, Open Bar, Premium Liquor, Signature Drink, Specialty Beer

    What is the maximum capacity of your venue?


    What is the minimum number of guests required to book your venue?


    How many event spaces or rooms does your venue offer?


    Describe your venue

    Art Gallery, Ballroom, Garden, Historic Building, Mansion, Museum, Park

    What kind of settings are available?

    Indoor, Uncovered Outdoor, Scenic Views

    Which of the following wedding events does your venue service?

    Ceremony, Reception, Bridal Shower, Engagement Party, Elopements, Rehearsal Dinner

    What event services do you offer?

    Bar Services, Catering Services, Clean Up, Get Ready Rooms, Outside Vendors, Set Up, Wifi

    What catering services do you offer?

    Cocktail Reception, Dessert, Hors d'oeuvres, Outside Cake, Plated, Server(s), Stations, Tastings

    What bar services do you provide?

    Bartender(s), Champagne Toast, House Beer, House Liquor, House Wine, Liquor License, Open Bar, Premium Liquor, Signature Drink, Specialty Beer, Specialty Wine

    What event items are available?

    Chairs, Drapery, Tables

    What food and beverage items are available?

    Barware, China, Flatware, Glassware, Linens

    What transportation and access is available?

    Parking, Valet, Wheelchair Access

    What months are included in your peak season?

    April, May, June, July, August, September, October, November

    What months are included in your off-peak season?

    January, February, March, December

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