CONSULTING SERVICES

High Performance Buildings
Building Performance that powers progress.
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GCG is a proven sustainability consulting firm specializing in high-performance building certification and strategic advisory services. With over 20 years of experience across diverse project types, we help clients achieve their environmental goals while maximizing building performance and occupant wellbeing.​
Our team brings a breadth of experience managing projects ranging in geographic location and building type such as large public assembly buildings, sports venues, airports, labs, aquariums, multifamily residential, commercial office buildings, retail, higher education facilities, civic buildings, industrial warehouses, K-12 schools, hospitality, and healthcare. GCG is a leader in the green building certification field.












High Performance Buildings
SERVICES:
Strategic planning & early design integration
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Early-phase sustainability goal setting
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Performance criteria development
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Owner requirements integration
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End-user needs assessment
Green building rating system recommendations
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Rating system alignment with project goals and objectives
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Cost analysis of various certification systems
Project & certification management
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LEED certification administration
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Green Globes certification
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ENERGY STAR certification
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ILFI Certification
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SITES, Parksmart, & TRUE certifications
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CHPS and NGBS compliance
Health & wellness solutions
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WELL Building standards & certification
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FITWEL strategies & certification
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Corporate policy recommendations and standards
Re-certification management
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Re-Certification for green & healthy buildings
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LEED, WELL, fitwel, etc.

Sustainability
Strategy & Reporting
Transform sustainability from a complex challenge into a powerful business advantage.​​
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Every sustainability journey is unique. Whether you're taking your first steps or advancing established initiatives, our collaborative approach helps navigate complex requirements while building practical, value-driven solutions.

Sustainability Strategy & Reporting
Reporting, Ratings & Disclosure frameworks
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ESG Reporting (Enviromental, social and governance)
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GHG Emissions Accounting (Scope 1, 2, 3)
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CDP Response
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Ecovadis
Sustainability Ratings & Certifications
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ISO 14001 (Environmental Management System standard)
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LEED, Living Building Challenge, WELL, Fitwel, and more
Target Setting & Performance Measurement
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Competitive Analysis/ Peer Review
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SBTi (Science Based Targets initiative)
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PERFORM (Performance measurement system)
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EnergyStar Portfolio Manager + ARC
Waste Consulting
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Waste Auditing
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Zero-Waste Planning
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Waste Education & Implementation
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TRUE Certification (Zero-waste certifiaction program)
Program Development
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Competitive Analysis/Peer Review
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Materiality Assessment
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Stakeholder Engagement/ Education
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Sustainability/ESG road mapping
Assessment & Resilience
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Life Cycle Assessments (LCA)
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Climate risk assesments
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Adaptation and mitigation strategies

Sustainable
Businesses
Sustainable business solutions that scale with your success.
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Every sustainability journey is unique. Whether you're taking your first steps or advancing established initiatives, our collaborative approach helps navigate complex requirements while building practical, value-driven solutions.

Sustainable Businesses
Corporate Responsibility Planning
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Policy for procurement of office supplies, furniture, catering or nutrition needs, and healthy building standards.
Policy Writing & Implementation
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Rating system alignment with project goals and objectives
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Cost analysis of various certification systems
Tenant Improvement Guidelines
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Guidelines that optimize energy efficiency, reduced waste, improve indoor occupant health and wellbeing.
Green Housekeeping Practices
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WELL Building Standards & certification
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Fitwel strategies & certification
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Corporate policy recommendations and standards
Ocupant Satisfaction Investigation
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Re-Certification for green & healthy buildings
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LEED, WELL, fitwel, etc.
Our Process

Benefits & Outcomes
