MaGrann Associates is an innovative energy efficiency and green building consulting and engineering firm headquartered in Mount Laurel, New Jersey with additional offices in Philadelphia, New York, Washington DC, and Columbus, Ohio, and operations throughout the mid-Atlantic region.. Since 1982, we have partnered with clients to deliver exceptional performance in customized building design, program management, and green building certification. By partnering with building professionals, utilities, and program sponsors, MaGrann integrates proven building science solutions into its comprehensive consulting and engineering services, guiding clients through the green building process. MaGrann focuses exclusively on bringing applied building science to the residential housing market through nationally recognized standards, including EPA’s ENERGY STAR Homes and Home Performance with ENERGY STAR program certifications, as well as the NAHB’s National Green Building Standard (ANSI-700) and the USGBC’s LEED for Homes.