- Joint Parties: If you would like host a joint party, an additional fee of $250 will apply for each added birthday child . This fee applies to both basic and deluxe Party Smarty packages. The joint party fee does not apply to siblings.
- Payment: 50% of fee must be paid at time of booking with the remainder to be paid within 7 days prior to the party date.
- Holiday Fee: For parties booked on a Holiday, there will be an additional $100 charge. Weekday discount does not apply on holidays.
- Rush Fee: For parties booked 7 days out or less, we will apply an additional $50 Rush fee.
- Rescheduling Fee: One date rescheduling per party is allowed. Any subsequent reschedulings will be subject to a $50 fee per change.
- No Outside Vendors: No outside catering companies or outside entertainment are allowed.
- The Houston Museum of Natural Science prefers credit cards as a method of payment. If you would prefer to pay in cash, we will accept cash payments for a birthday party as long as the initial deposit of 50% is made at the time of booking and the remaining balance is paid within 7 days prior to the party date.
- All birthday parties must be paid prior to the date of the party. Failure to do so will result in the birthday party being cancelled. We appreciate your cooperation.
- Balloons: $20 (includes 1 dozen inflated 12″ latex balloons) provided by the Museum. If you provide 1 dozen 12″ latex balloons, the Museum will inflate them for $10. Must use Museum’s helium tanks, no outside helium tanks allowed.
- Invitations and Thank You Cards: $40 (includes 20 invitations with envelopes and 20 thank you cards with envelopes)
- To book your party, call 713-639-4646 or email Birthdays@hmns.org.
By law, no outside liquor may be brought onto the premises. Alcohol will not be tolerated or permitted under any circumstances during birthday party activities.
You are more than welcome to bring your own food or have food delivered to the museum for your party, however for the safety of our patrons the following items are not allowed: hot plates, crockpots, chafing dishes, sparkler candles or any other heating or warming devices.
The Houston Museum of Natural Science does not offer any refunds on birthday parties.
Rescheduling of Parties:
The Houston Museum of Natural Science allows a one-time reschedule of a birthday party. Any add-ons that were booked for the original birthday party date are not guaranteed on the rescheduled date. However, the museum will make every effort to reschedule all original add-ons. Any subsequent reschedulings will be subject to a $50 fee per change.
Party Smarty at HMNS at Sugar Land
Do you live in the Sugar Land area and want to keep the party a little closer to home? Party Smarty is also conveniently available at HMNS at Sugar Land. The format is the same, with guests able to tour Dinosaur Alley, tour the Frog exhibit or view a film in the Discovery Dome.