Jan Nienu 

Treehouse Director


Thank you for considering Treehouse Preschool & Transitional Kindergarten for your child's education.  Our staff consists of highly experienced teachers who truly are passionate about what they do.  Most of our faculty members possess their Permits/Credentials in Early Childhood Education through the California Commission on Teacher Credentialing.  They are dedicated to providing excellent care as well as presenting a well-rounded and age-appropriate curriculum. 

Treehouse has been serving the community since 1975.  We are honored to be represented by a second generation of students.  We take great pride in preparing our students for a successful and meaningful future.   Many principals and teachers have commented to us how well our students are prepared in all areas.  We are pleased that our graduates are much sought after and continue to excel in various schools. 


Thank you for sharing your precious little ones with us.  Please call us at (510) 531-0320 with any questions or to schedule a tour of our campus.

About Treehouse

Treehouse provides a well-rounded curriculum preparing the children for the next class or grade level.  Age appropriate curriculum is taught for individual growth and readiness. 


Children are given the opportunity to make choices through which they learn that their feelings, thoughts and emotions are worthwhile. They also learn the consequences of their choices and gain competence in decision-making. 


The Treehouse staff is dedicated to providing an atmosphere where each child can experience the qualities of our Heavenly Father's great love through our actions and example.  We believe that such an understanding is fundamental to the development of the whole child.

Our History

Treehouse Preschool began in 1975 as a ministry of the First Covenant Church of Oakland.