Boston Assembly Row, Somerville

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Birthday Party at LEGOLAND® Discovery Center Boston

Birthdays at LEGOLAND® Discovery Center

If you're looking for a unique children’s birthday party idea, then try our birthday party package available at LEGOLAND® Discovery Center Boston.

See why we are the most unique venue for kid's birthday parties!  Stop by for a tour today!

All-Inclusive Package

All-Inclusive Birthday Party Package - $625

(A $1,200 value)


  • Invite up to 40 guests to help celebrate with you and your child!  (Our room capacity can accommodate up to 40 people but you're not required to invite that many)
  • Admission to LEGOLAND® Discovery Center Boston, including all rides and attractions
  • 60 minutes in our private birthday party room with two birthday party hosts where you will enjoy the following:
    • 7 cheese pizzas
    • Unlimited beverages (Fruit Punch, Water & Coffee)
    • 45 cupcakes from Lyndell's Bakery in Somerville (chocolate and vanilla)
    • Party host led build session where the children complete their LEGO build to take home (age appropriate)
  • All party supplies - (plates, napkins, utensils, tablecloths, 1 dozen balloons, candles)
  • LEGO themed birthday party e-invites

*Maximum room capacity is 40 guests (This includes all adults, children and infants.  Due to space limitations and building code requirements, we can not allow allow additional guests to be added to the package)
*Birthday parties available at 11am, 1pm, 3pm and 5pm
*Please note that parties scheduled for 5pm may arrive at 3pm to allow time for guests to enjoy the attraction before entering the birthday party room
*All birthday party bookings must be completed online

*Shopping cart will show 25 tickets at time of purchase - All remaining guest tickets (up to 40) will be printed upon arrival at the attraction


Common questions

Will there be a host for my party?

Yes, you will be greeted by your birthday host who will stay with you and your party for your time within the birthday party room.


What happens during the 60 minutes in the party room?

When you're in the party room you'll have time to eat pizza and cupcakes. Your birthday party hosts will also lead the LEGO build for the children. After that they'll escort you through the Factory Tour exhibit and onto the first ride so your group can start exploring the attraction.


How far in advance do birthday parties need to be booked?

Our birthday parties are very popular and the birthday rooms are reserved quickly on a first-come, first-serve basis. To make sure you are able to reserve the special date you want, we recommend booking at least 6 weeks in advance. Reservations must be made a minimum of 1 week in advance.


How long can we stay in LEGOLAND Discovery Center?

Although your time in the Birthday party room will be 60 minutes, you are welcome to stay in the center as long as you like. We ask that your party arrives 20 minutes prior to your scheduled time. Due to their popularity, our party rooms are often booked throughout the day, so we are unable to allocate you extra time if you are late.

Can I do a drop off party?

Unfortunately we are unable to offer drop off birthday parties. 

Can I bring my own food or drink?

Our All-Inclusive package includes all the food and drinks you will need for your party. Please list any allergy or special diet concerns in the comment box on the Birthday Child information page at the time of booking.

Do I need to pay a deposit for my birthday party?

We require full payment at the time of booking. 


Do I have to invite 40 people?

You are welcome to invite up to 40 people (including yourself and your child) to celebrate with you but you are certainly not required to have that many! Just make sure that your total guest count doesn't exceed 40 people as our room can't accommodate more.


Are adults included in the 40 guests count?  What about children under 2?

All adults, children and infants are included in your total guest count.

Can I have more than 40 guests?

Due to room capacity limitations and building code requirements we are unable to add additional guests.

Is there a cancellation period?

Birthday party bookings can be cancelled with a full refund up to 1 month prior to the booking. Any bookings cancelled within the month of the party will be non-refundable.

Birthday Club

Register for our Birthday Club below and enjoy a complimetary child admission (under the age of 12) during their birthday month. An email with the coupon will be sent the month prior to the birthday.

If you have not received your coupon prior to your visit, please contact us.

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Ready to Party?  

Book online now

Still have questions?

Please check the "Common Questions" tab for answers to many popular questions or email us and a member of our team will reply within 1 business day.

Visual MapLEGO® Factory Tour

A birthday adventure
you'll never forget!

mini figure

Parties that your
child will love.

Want to find out more?  Email us for details!


Birthday Party invitations

Click here to
create your own

598 Assembly Row Boston, Somerville Massachusetts 02145 USA Phone: 866-228-6439