Green Building Certifications

Standard Development

NAHB Green Home Building Guidelines Site design, preparation and

development Resource efficiency Energy efficiency Water efficiency Indoor environmental quality Global impact Operation, maintenance and

homeowner education

The Guidelines provided a basis for national and local programs.

Standard Development Confusion and the need for a nationally

recognizable standard remained. NAHB notified ANSI and partnered

with the ICC.

Slide 1-15

1st ANSI-approved green building rating system

Covers all major areas of residential construction New construction Renovations and

additions Site development Multi-unit construction

Slide 1-16 Cont’d…

Standard Scope and Chapters

Standard Scope and Chapters

Chapter 4: Site Design and Development

Chapter 5: Lot Design, Preparation, and Development

Chapter 6: Resource Efficiency Chapter 7: Energy Efficiency Chapter 8: Water Efficiency Chapter 9: Indoor

Environmental Quality Chapter 10: Operation,

Maintenance, and Homeowner Education

Standard Scope and Chapters

BronzeSilverGoldEmerald

Project Certification

Project Obtains GreenCertified Mark

Builder Uses Green Scoring Tool to Score Project

Builder HiresAccredited Verifier

Verifier SchedulesRough Inspection

Verifier SchedulesFinal Inspection

Notifies NAHB Research Center

Notifies NAHB Research Center

Online Green Scoring Tool

www.nahbgreen.org/ScoringTool

LEED-H vs NGBS PreliminaryAdded Construction Cost Comparison

LEED-H$6,400 - $11,000

(4-6%)

$8,000 - $13,800(3-8%)

$19,300 - $22,500(10-13%)

$29,800 - $38,000(20-22%)

$1,050 - $2,350

NGBS$2,000 - $3,000

(1-2%)

$4,000 – $6,000(3-4%)

$11,500 - $13,600(6-8%)

$25,600 – $31,200(17-18%)

$650 - $1,250

Certified-Bronze

Silver

Gold

Platinum-Emerald

ProgramCost