Building & Planning
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Building Permits
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Business Licenses for Contractors
Review documents outlining required business licenses for contractors.
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Engineering & Construction Standards
This City of Lake Saint Louis has updated the Engineering Design Standards and Construction Specifications. This manual contains references to adopted standards, and modifications to those adoptions.
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Interactive Zoning Map
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Planning Applications
Download applications from the Planning and Zoning Division.
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Sign Permits
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Zoning Districts & Regulations
The primary purpose of zoning is to ensure that adjacent land uses are compatible with one another. Zoning helps bring about orderly growth and change, controls population density and helps create attractive, healthy communities. It also helps assure property owners and residents that the characteristics (and property values) of nearby areas will remain stable.