Brentwood conducts residential and commercial permitting and inspections for construction and occupancy. St. Louis County does not perform these inspections. Examples of projects that require a permit include fences, driveways, garages, pools and interior and exterior remodeling. Zoning approval is required prior to installing a shed. Exterior alterations to homes, except for decks, window replacements, fences and roof shingles, must be reviewed by the Architectural Review Board prior to issuance of a permit.