A comparison of alternative and conventional infrastructure costs on a 6.6 acre site in Surrey,BC.  Infrastructure Cost Conventional Alternative boulevarde landscaping  storm sewer  water mains  water tie-in connections  lot grading/swales  boulevarde tree planting $30,000  $205,820  $113,705  $18,177  $24,450  $20,000  $48,987  N/A  $191,627  $58,521  $24,420  $35,598  Total Infrastructure Costs  entire site $964,354  $1,093,340  Total Per Dwelling Unit Cost $23,520    $4,408