For the Little League Heights Towne Center you are going to have to make a California Environmental Quality Act (CEQA) finding as to whether the project qualifies as a project under CEQA, for both your staff report and your Resolution,
and if so under what category.
You can go to the California Government web site at: http://ceres.ca.gov/ceqa/docs/CEQA_Handbook_2012_wo_covers.pdf
Overview Section 15002 (p151)
Exempt Section 15061/2 (P164)
Initial Study Section 15063 (p166)
Negative Declaration or Mitigated Negative Declaration Section 15070 (p176)
Environmental Impact Report (EIR) Section 15080 (p182)