STELC is a mission of St. Thomas Episcopal Church. The buildings and grounds used by the both the church and school are owned by the Episcopal Diocese of Texas. The church and school have a written agreement for sharing the buildings and grounds.

STELC is fully incorporated under the laws of the State of Texas as a non-profit institution, separate from St. Thomas Episcopal Church, and is governed by a Board of Trustees of nine members. The Rector or Priest-in-charge of the Church and the Head of School (HOS) serve as ex-officio members of the Board of Trustees.

Trustees serve for a term of three years, with the terms overlapping. Trustees are men and women drawn from church membership, parents of the students and interested members of the community. A minimum of 60% of members of the Board of Trustees are members of St. Thomas Church, selected by the governing body of the Church. Trustees (other than the Rector or Priest in Charge) may not be employees of the School or of the Church.

New Trustees are elected at the Board’s March meeting, and are subject to confirmation by the Vestry of the Church at its April meeting. Trustees’ terms start on July 1 of the year they are elected, and the Board year runs from July 1 to June 30 of the following year.
As provided in the Bylaws of the School, the School has an administrative officer, the Head of School, who is the sole employee of the Board. The Head of School is in charge of the day-to-day operation of the School.

The Board is charged with the formulation of policies that enable the School to fulfill its purposes, and has general charge of the affairs, funds, and property of the School. The most important function of the Board is to develop policy. While some of the time in board meetings may be devoted to hearing and discussing reports, and individual Trustees may, alone or with others, perform specific work for the School, the Trustees’ essential task as a group is to make policy. To the extent practical, the Board refers major items of business or policy first to an appropriate Board committee for study and recommendation before it comes before the whole Board.