Sheriff Ed Gonzalez said deputies responded to the 21200 block of FM 2920 in Tomball in reference to possible human remains.
The sheriff added the work site was formerly home to a facility belonging to Boys and Girls Country, a nonprofit benefiting children from families in crisis.
At the site, officials said a skull and teeth were among the remains found but did not disclose how long they had been there.
Other details into the reported remains were not immediately disclosed.
Get updates from the scene by following Roxie Bustamante on Facebook, Twitter and Instagram.