LID/Conservation Design Developer Standpoint (Overview) Why developers tear down all the trees – Ramifications/costs What developers can and should do to mimic natural characteristics and hydrology of a site. Why developers will adopt LID principles Obstacles; natural and man made
Timbers at Creekside-Kirkwood Costs of Conventional Stormwater Treatment 3 $1,300 $3, ’ of 12” $18 $5,076 Additional Clearing & Grading $3,000 Rock Excavation ?????? Total$12,000
Costs of LID Approach NOT $12,000!!! Prairie Crossing outside of Chicago saved more than $4,400 per lot using LID approaches and reinvested this money into community amenities and open space (and gained significant lot premiums)
Blanket application of street design standards can create excessively wide right-of- ways. Photo Copyright 1999, Center for Watershed Protection
This photograph is an example of an open channel. Photo Copyright 1999, Center for Watershed Protection
Firetrucks & Ideas Make the turnaround islands pervious with rolled curbs so trucks can drive on them if needed Make islands depressed so they can retain storm water (crown streets accordingly) Don’t allow plantings within 5 feet of street on cul-de-sac Don’t put a streetlight in the middle of the island Allow parking on only one side of street
PRINCIPLE NO. 12 Relax Setback & Frontage Distances Relax side yard setbacks and allow narrower frontages to reduce total road length in the community. setbacks Relax front setback requirements to minimize driveway lengths. Copyright 1999 Center for Watershed Protection
Timbers at Creekside-Kirkwood
Belcher Homes
Courtesy: Wellspring Development Co. Belcher Homes
N House footprint Solar exposure Belcher Homes
Why developers ($$ & time) will use LID principles Entitling land – Green Tapping – NIMBYs Gain more lots Decreased sewer, street, grading, clearing costs Increased lot premiums More perceived landscaping Saves trees reduce utility loads on homes higher sales price Embraced by municipalities
NOT THIS!!
More like this!
Or this!
ANSI 700 Released; February 5 th, 2009 Green Building is Codified! Chapter #4 Site Design and Development Belcher Homes
Conclusion Not a linear process, integrated systems Thank You! Matt Belcher Belcher Homes