South West Study Area Introduction ► Summary of Study Area ► Unified Development Code Amendments ► Points of Interest ► Staff Recommendation ► Review Schedule of Meetings

South West Study Area ► Area generally bounded by Highway 59, Hwy 36, Hwy 190 the Tchefuncta River, the Tangipahoa Parish Line and Lake Pontchartrain ► From the eastern edge of Mandeville to Abita Springs to Goodbee to Madisonville ► Four quadrants created by I-12 and the Tchefuncta River

South West Study Area

Points of Note ► The South West Study Area has undergone similar pattern of development but on three different timelines ► Older areas of the southeast and northeast quadrants have long established development patterns ► The southwest quadrant underwent a dramatic increase in development pressures in the late 1990’s ► The northwest quadrant has undergone an increase in development pressure in the last 5 years

Points of Note ► The northwest quadrant has undergone an increase in development pressure in the last 5 years ► Each distinct growth period has had different standards of development and infrastructure requirements ► This ordinance and other recently adopted standards are an attempt to improve on the previous requirements

Existing Land Use

Points of Note ► Density should be assigned to areas where infrastructure can be constructed without having a significant impact upon the adjacent communities ► Higher density development should be placed in areas which are less susceptible to catastrophic impacts of tropical storm events. ► Due to an increase in elevation, I-12 is the traditional line of evacuation for St. Tammany Parish

Elevation

St. Tammany Greenprint

► Commercial Centers and Town Centers should be separated so as not to strip out commercial corridors ► Industrial or Heavy Commercial centers must be placed where adequate highway infrastructure can be built if not already available

Commercial and Town Centers

Proposed Zoning Pattern

South of Interstate 12 ► South of I-12 is either heavily developed with established development patterns or undergone considerable developmental review in the last ten years ► These existing developments have established a relatively consistent pattern of development both east and west of the Tchefuncta River ► Environmental issues and physical barriers limit the developmental capacities of the southern half of the South West Study area ► The threat of tidal inundation by storm events suggest that concentrations of higher density should be avoided

South of Interstate 12 ► Commercial activities should be located concentrated at existing centers at Mandeville, Madisonville, and interstate intersections. ► While some concentrations of density exist, any additional residential development south of US 190 should be of lower density. ► Some small scale existing commercial will remain, particularly along Louisiana Highway 22.

Staff Recommendation South of I-12 ► Approximately 79% of property designated residential (A or E Districts). ► Approximately 21% of property designated commercial, institutional or mixed use. ► Density of all Residentially Zoned Property (A or E Districts) is 1.40 units per acre. ► Density of all property is 1.11 units per acre.

Southeast Quadrant

Southwest Quadrant

North of Interstate 12 ► The relative lack of development would normally permits planning and construction of transportation, drainage and other infrastructure. ► However, environmental issues and physical barriers limit the developmental capacities of the northwest quadrant of the South West Study area. ► Towns, crossroad communities and the interstate intersections form the “Commercial and Town Centers” in this area. ► Existing centers should be developed with growth focused around these existing centers.

North of Interstate 12 ► Areas along the Tchefuncta River and west of Louisiana Highway 1077 (north of U.S. 190 and Bedico Creek (between U.S. 190 and I-12) are particularly sensitive. ► Significant acreage of environmentally sensitive property located north of I-12 should be designated as lower density districts. ► While concentrations of higher density are more appropriate north of I-12, these must be located within relatively limited areas which are not as environmentally sensitive.

Staff Recommendation North of I-12 ► Approximately 80% of property designated residential (A or E Districts). ► Approximately 20% of property designated commercial, institutional or mixed use. ► Density of all Residentially Zoned Property (A or E Districts) is 1.20 units per acre. ► Density of all property is.96 units per acre.

Northeast Quadrant

Northwest Quadrant

Staff Recommendation ► Approximately 79% of property designated residential (A or E Districts). ► Approximately 21% of property designated commercial, institutional or mixed use. ► Density of all Residentially Zoned Property (A or E Districts) is 1.31 Units per acre. ► Density of all 95 square miles is 1.04 units per acre.

Review Schedule of Meetings ► Special Public Hearings  October 21, 2008  November 18, 2008 ► Presentation to Council in December for additional hearings as needed by Parish Council prior to adoption

Project Website Project Address