From their website:
A variety of Memberships are available, with Initiation Fees from $2,000 to $24,000. Monthly dues within each Membership category vary for individuals, couples and families, and range from $180 to $318 per month.
Resident Membership
Provides complete dining, social and athletic use of The Houstonian. Resident Members enjoy exclusive use of the Resident Member Locker Rooms, Resident Member Workout Room and Gated Resident Parking Area.
Voyagers (70+) Resident Membership
Provides all the benefits of a Resident Membership for those who are 70 years of age or older.
Associate Membership
Provides complete dining, social, and athletic use of The Houstonian, excluding designated Resident Member areas.
Voyagers (70+) Associate Membership
All the benefits of an Associate Membership for those who are 70 years of age or older.
Junior Associate Membership
Provides all the benefits of an Associate Membership for those who are age 23-29.
http://www.houstonianclub.com/Membership/TypesandCosts.htm