Table 3.

Barriers to Practicing Sustainable Design Themes

BarrierHeat Reduction (n = 225)CO2 Sequestration (n = 225)Stormwater Management (n = 225)Habitat Restoration (n = 225)Social Justice (n = 225)
Lack of Knowledge21.8% (49)38.2% (86)16.4% (37)24.9% (56)35.6% (80)
Practice Too New14.7% (33)27.6% (62)9.8% (22)16.0% (36)23.6% (53)
Tight Timeline20.4% (46)29.8% (67)18.2% (41)29.3% (66)32.0% (72)
Political Pushback28.0% (63)34.7% (78)25.3% (57)32.0% (72)35.1% (79)
Lack of Public Awareness41.8% (94)52.4% (118)36.0% (81)43.6% (98)48.9% (110)
Lack of Client Demand/Interest60.0% (135)72.9% (164)50.2% (113)66.2% (149)61.3% (138)
Uncertain Cost Savings83.6% (188)52.9% (119)35.6% (80)45.8% (103)48.4% (109)
Limited Resource Availability21.3% (48)34.2% (77)16.4% (37)21.3% (48)12.9% (29)
Maintenance32.4% (73)31.6% (71)52.0% (117)61.3% (138)16.0% (36)
Budget Constraints62.2% (140)70.2% (158)58.7% (132)68.9% (155)48.0% (108)
Regulatory Hurdles21.3% (48)25.8% (58)30.2% (68)25.8% (58)18.2% (41)
Competition16.4% (37)17.8% (40)13.8% (31)17.3% (39)18.7% (42)
  • Note: The count is in parentheses. Higher percentages denote a greater effect on landscape architecture.