Residential properties are divided into 4 tiers. One fourth of the City’s total residential property is in each tier. Each tier is based on the impervious area for the property. Example Residential Property
The example residence shown below has a 2,000 sq ft building footprint, plus approximately 1,000 sq ft additional impervious area. This equates to 3,000 sq ft total impervious area, and the property would be placed into Tier 2.