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SingleFamily Green Building:

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Living spaces are on the east side of the house with utilities on the west ... House plans. GWS reviews materials; determines if LEED goals are attainable ... – PowerPoint PPT presentation

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Title: SingleFamily Green Building:


1
Single-Family Green Building Challenges and
Solutions Community Housing Development
Corporation
2
  • CHDCs Green Building Projects 2008
  • Green Demonstration Home at 1347 Forest Avenue
  • 1622 Forest Avenue

3
Community Housing Development Corporations
Greenth Street
An Affordable, Green, LEED Certified,
Demonstration Home
4
Affordability Goal and Budgetary Constraints
  • Sources of Funds
  • Anticipated Sales Price 125,000
  • Development Gap (HOME) 30,000
  • Green Gap (PCHTF) 15,000
  • CHDO Proceeds 5,000
  • Metro Waste Authority 2,500
  • TOTAL 177,500
  • Uses of Funds
  • Construction 157,500
  • PreDevel and Soft Costs 20,000
  • In addition, CHDC has received approximately
    30,000 in donated services, products and land.

5
Silver LEED Certification
  • U.S. Green Building Council offers Leadership in
    Energy and Environmental Design certification
  • LEED suggests Green Building Goals/Guidelines
    that address
  • Innovation and Design Processes
  • Location and Linkages
  • Sustainable Sites
  • Water Efficiency
  • Energy and Atmosphere
  • Materials and Resources
  • Indoor Environmental Air Quality
  • Awareness and Education

Photo from www.remodelingrecon.com
6
The Site 1347 Forest Avenue
7
The Design Wells Associates
8
Innovation and Design
  • Design charrettes
  • Natural lighting in every room
  • Public awareness COSC workshops, site blog
  • Porch design and roof profile
  • Jamie Malloy, LEED AP architect with Wells
    Associates

9
Location Linkages
  • Infill lot
  • Across the street from Forest Avenue Public
    Library
  • Across the street from Evelyn Davis Park
  • Within a block of DART bus stop
  • Within ½ mile of other basic community resources
    such as
  • YMCA
  • Places of worship
  • King Elementary School
  • Day care centers
  • Senior center
  • Salvation Army Community Center
  • Laundry facilities
  • Convenience store
  • Within 1 mile of Drake University

10
Sustainable Sites
  • Erosion control during construction
  • Drought-tolerant native planting
  • Minimize local heat island effects through
    light-colored hardscapes
  • Manage roof runoff

11
Water Efficiency
  • Rainwater harvesting system
  • Rain barrels
  • Rain gardens
  • High-efficiency toilets 1.3 gpf
  • Very high-efficiency fixtures and fittings
  • faucets 1.5 gpm
  • Shower 1.75 gpm

12
Energy Atmosphere
  • Energy Star appliances ceiling fans
  • 5 IECC climate zone
  • 85 HERS index
  • Efficient HVAC
  • Energy Star lighting
  • Windows meet Energy Star BOP specifications

13
Materials Resources
  • Framing efficiency--reduce waste
  • Bamboo flooring throughout first floor
  • Limited carpet green label plus
  • FSC certified tropical woods
  • Waste management--onsite separation and recycling

14
Indoor Environmental Quality
  • Energy Star Indoor Air Package
  • HVAC with dehumidifier
  • Air filtration system
  • Radon-resistant construction
  • Return air-flow forced-air
  • Detached garage (pad)

15
Awareness Education
  • Design charrettes
  • King Irving Neighborhood Association
  • Collaboration of businesses and organizations
  • Capri
  • Cenergy
  • Center on Sustainable Communities
  • City of Des Moines
  • Double D Construction
  • Fireplace Stone Center
  • Flooring Gallery
  • LEE Engineers Surveyors
  • Menards
  • Metro Waste Authority
  • Polk County Housing Trust Fund
  • Signs Plus
  • TEAM Services
  • Waste Management
  • Wells Associates
  • Center on Sustainable Communities (COSC) public
    workshops

16
Awareness Education
  • Blog for public comments
  • http//greenthstreet.blogspot.com

17
1622 Forest Avenue Green Design and Energy
Efficient Construction
18
1622 Forest Design and Energy Features
  • Open floor plan with a switchback staircase that
    encourages cross ventilation, aiding in heating
    and cooling the house
  • Living spaces are on the east side of the house
    with utilities on the west
  • Windows on all four sidesnatural light
  • Large porch on the south side
  • All electric utilities
  • Advanced blown in insulation
  • Energy Rating85 HERS

19
Affordability Budget
  • Sources of Funds
  • Anticipated Sales Price 124,000
  • Development Gap (HOME) 30,000
  • Green Gap (PCHTF) 9,500
  • TOTAL 163,500
  • Uses of Funds
  • Construction 146,000
  • PreDevel and Soft Costs 17,500

20
Lessons Learned
  • CHOOSE Your Focus
  • Energy Efficiency
  • Sustainable Practices and Materials
  • It takes TIME to be resourceful
  • Be prepared to EDUCATE yourself and everyone who
    works on the project
  • Get CREATIVE
  • Be FLEXIBLE

21
Challenges for the Housing Community
  • Defining Green Building
  • Understand there is more than one right way
  • Historic, Green and Affordable

22
  • QUESTIONS?
  • CHDCs Website
  • www.chdcdesmoines.org
  • Blog for public comments
  • http//greenthstreet.blogspot.com

23
Going for a Medal LEED
  • Guaranteed Watt Savers (GWS), Oklahoma City, OK
  • Several step process
  • Preliminary submission and processing fees
  • LEED for Homes Checklist
  • Homes Cost Proposal and Project Team Member Form
  • Builder Profile Form
  • House plans
  • GWS reviews materials determines if LEED goals
    are attainable
  • Secondary submissions for main LEED criteria
  • Inspection Phase
  • LEED Green Rater
  • HERS Rater
  • Completion Phase
  • Accountability Forms
  • Certification

Photo from www.remodelingrecon.com
24
Costs Can Green, LEED Builds be Affordable?
  • GWS LEED costs covered by COSC
  • 0.18/Livable SF for Plan Analysis
  • 45/hr Modeling, Tax Credits, Index, LH Points (2
    hr. minimum)
  • 45/hr reanalysis of plans if changed
  • 450 GWS LEED for Homes Processing
  • 125 Expanded Checklist Review with Engineer
  • 190 0.55/mile first inspection
  • 450 0.55/mile final inspection
  • USGBC registration and certification fees waived
    due to projects Affordable Housing status
  • Approximate total LEED 1,500 travel expenses
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