Green Certifications and Standards in Interior Design

Sustainable interior design has evolved from a trend to an essential practice, driven by growing environmental awareness and stricter regulations. Achieving green certifications not only benefits the environment but also improves occupant well-being and property value. This guide explores the leading certifications and standards influencing eco-friendly interiors and demonstrates how interior designers can incorporate these principles into their projects.

Understanding Green Certifications in Interior Design

Certifications set the benchmark for sustainability by outlining clear, measurable criteria. They provide reassurance to clients that their spaces adhere to recognized green standards, supporting transparency and credibility. By adopting certified practices, interior designers play a key role in promoting responsible construction and renovation, reducing the environmental impact associated with traditional design and building processes.

LEED for Interior Design and Construction (LEED ID+C)

LEED ID+C is a widely recognized certification specifically addressing the sustainability of interior spaces. Awarded by the U.S. Green Building Council, it evaluates criteria such as material selection, water and energy use, and occupant well-being. Projects pursuing LEED must demonstrate leadership in transforming interiors into environmentally responsible and resource-efficient spaces, encompassing everything from finishes and furnishings to lighting and controls.

WELL Building Standard

The WELL Building Standard sets itself apart by focusing on human health and comfort within interior environments. In addition to energy and material criteria, WELL addresses air and water quality, lighting, acoustics, and even behavioral factors. Designers following WELL guidelines work to elevate the overall wellness of occupants, with projects receiving certification only after rigorous third-party testing and performance verification.

BREEAM In-Use for Interiors

Developed in the UK, BREEAM In-Use is adaptable for interior design applications in both new and existing non-residential buildings. Emphasizing environmental performance during a building’s operational phase, BREEAM evaluates asset management, sustainability of fit-outs, and ongoing environmental impacts. Interior designers applying BREEAM standards focus on efficiency, adaptability, and continued improvement throughout a space’s lifecycle.

Key Criteria for Achieving Certification

Sustainable Material Selection

Certified projects prioritize the use of materials that are non-toxic, rapidly renewable, recycled, or locally sourced. Selecting such materials minimizes environmental harm, supports responsible manufacturing, and reduces negative impacts on indoor air quality. Designers must thoroughly vet suppliers, validate material certificates, and document their sustainable choices, knowing that every product used within a space contributes to or detracts from the overall certification effort.

Indoor Environmental Quality Enhancement

Improving indoor air quality is central to green certifications. This involves specifying low-emitting adhesives, paints, finishes, and furnishings—reducing volatile organic compounds and allergens. Ventilation system design, daylighting strategies, and acoustic performance also play key roles. Interior designers work closely with mechanical engineers and contractors to ensure that clean, comfortable, and healthy air is a priority at every stage of the project.