The LEED AP Interior Design and Construction (ID+C) exam evaluates professional knowledge regarding the sustainable design, construction, and improvement of commercial interior spaces. Administered by USGBC, this assessment spans 8 domains. Candidates must answer 100 questions within a 120 minutes time limit and achieve a passing score of 170/200 to earn the credential.
This exam is intended for professionals involved in the design, construction, and improvement of commercial interior spaces. Candidates should have experience with LEED projects and a practical understanding of sustainable building systems, water efficiency, and material selection within the interior design and construction industry.
Review the official USGBC candidate handbook to understand the exam structure across all 8 domains. Focus on the core requirements for water reduction, energy performance, and indoor air quality. Allocate study time to practice all 100 questions during prep sessions, ensuring you can manage the 120 minutes duration and reach the required passing score of 170/200 on test day.
This domain covers the management of the LEED process and the prioritization of project goals to ensure sustainability. Candidates must understand how to align project objectives with green building standards throughout the design and construction phases of commercial interior projects.
This section focuses on the early analysis of building systems to achieve synergies across various disciplines. Candidates learn how to integrate energy and water system analysis to optimize project performance and ensure that all design decisions support long-term sustainability goals effectively.
This domain covers site selection and transportation choices designed to reduce environmental impact. Candidates must evaluate neighborhood development locations, access to quality transit, and the implementation of bicycle facilities to support sustainable commuting and reduce the carbon footprint of the project.
This area addresses land conservation and the protection of existing infrastructure through smart site development. Candidates study the importance of surrounding density and diverse use proximity to minimize the impact on natural land and maximize the utility of existing urban environments.
This domain covers methods to reduce indoor water consumption through the use of efficient fixtures and appliances. Candidates learn about indoor water use reduction strategies and the specific WaterSense labeling requirements necessary to meet the established standards for sustainable interior water management.
This section focuses on energy performance, commissioning, and the use of renewable energy. Candidates must understand fundamental commissioning, minimum energy performance requirements, and refrigerant management to ensure that interior spaces operate efficiently and minimize their overall impact on the atmosphere.
This domain addresses waste management and the selection of sustainable materials. Candidates study the requirements for recyclable storage, waste management planning, and life-cycle impact reduction to ensure that materials used in interior construction are environmentally responsible and support circular economy principles.
This section covers strategies to improve indoor air quality and occupant comfort. Candidates learn about indoor air quality performance, the selection of low-emitting materials, and the importance of thermal comfort and lighting to create healthy and productive interior environments for all building occupants.
Arrive prepared to complete all 100 questions within the 120 minutes total exam duration. Carefully manage your pace across all 8 domains to achieve the required passing score of 170/200.
The LEED AP Interior Design and Construction exam consists of 100 questions. Candidates must answer all questions within the allocated 120 minutes testing period, ensuring proper pacing to complete the entire assessment effectively.
To pass the LEED AP Interior Design and Construction exam, candidates must achieve a score of 170/200. Candidates must study across all 8 exam domains to prepare for the 100 questions on the test.
The exam duration is 120 minutes of total testing time. Within this time frame, candidates need to complete 100 multiple-choice questions while maintaining accuracy to hit the passing score of 170/200.
For information regarding updates or credential requirements, check with USGBC for the current certification path. They provide all official guidance for candidates seeking professional credentials in green building.
Verified 2026-09-14
This page was built by synthesizing official USGBC candidate handbooks and exam documentation to provide a clear, accurate overview of the exam structure, content requirements, and professional standards expected of candidates pursuing this specific LEED certification.