Table 5.2.9.3—Base rate factor for constrained areas in the flooding7 and heritage8 overlays in City Plan 2014 Constraint (excludes Equivalent Group 1 Group 1 Groups 2- Groups 2- Groups 2- Riverfront Property) ARI9 flood (0-8km) (>8 km) 14 (0-1ha) 14 (1-5ha) 14 (>5ha) event Flood overlay 1 in 10yr 75% 60% 70% 60% 50% (Planning Area 1) Flood overlay 1 in 20yr 80% 70% 75% 65% 55% (Planning Area 2) Flood overlay 1 in 50yr 85% 80% 80% 70% 60% (Planning Area 3) Flood overlay 1 in 100yr 90% 85% 85% 75% 65% (Planning Area 4) Flood overlay 1 in 500yr 100% 95% 95% 95% 90% (Planning Area 5) Heritage overlay N/A 95% 85% 80% 85% 90% Flooding constraints include areas identified as Brisbane River and creek/waterway flood planning areas, categories are in 7 accordance with City Plan 2014. Heritage constraints include areas identified as State heritage, local heritage, and adjoining heritage. 8 Flooding categories correspond with the likelihood of a flood event based on average recurrence intervals. 9
Table 5.2.9.3—Base rate factor for constrained areas in the flooding7 and heritage8 overlays in City Plan 2014 Constraint (excludes Riverfront Property) Equivalent ARI9 flood event Group 1 (0-8km) Group 1 (>8 km) Groups 2- 14 (0-1ha) Groups 2- 14 (1-5ha) Groups 2- 14 (>5ha) Flood overlay (Planning Area 1) 1 in 10yr 75% 60% 70% 60% 50% Flood overlay (Planning Area 2) 1 in 20yr 80% 70% 75% 65% 55% Flood overlay (Planning Area 3) 1 in 50yr 85% 80% 80% 70% 60% Flood overlay (Planning Area 4) 1 in 100yr 90% 85% 85% 75% 65% Flood overlay (Planning Area 5) 1 in 500yr 100% 95% 95% 95% 90% Heritage overlay N/A 95% 85% 80% 85% 90% 7 Flooding constraints include areas identified as Brisbane River and creek/waterway flood planning areas, categories are in accordance with City Plan 2014. 8 Heritage constraints include areas identified as State heritage, local heritage, and adjoining heritage. 9 Flooding categories correspond with the likelihood of a flood event based on average recurrence intervals.
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