Dear all,
i am consulting for a project is located in the new development area next to the developed area which has high rise buildings and residential buildings. There are not many buildings and we are confused with LZ2 and LZ3. This area will be developed in the future and will be more vibrant, So what should we clarify about the LZ, using LZ2 or we will explain to LEED/GBCI to choose LZ3?
Thanks
Bill Swanson
Sr. Electrical EngineerIntegrated Design Solutions
LEEDuser Expert
735 thumbs up
October 23, 2023 - 9:42 am
The LZ designation is determined by the lighting designer based on the Model Lighting Ordinance (MLO)
https://www.usgbc.org/resources/model-lighting-ordinance-users-guide
The guide says LZ may change as sites get developed.
Afogreen Build
www.afogreenbuild.comGreen Building Consultant
247 thumbs up
July 10, 2024 - 9:06 pm
Hi Linh,
As stated in LEED BD+C guide v4 page 214, the MLO lighting zone for the project is based on the lighting zone of the immediately adjacent property at the time construction begins.
LZ2 is defined for areas of human activity where the vision of human residents and users is adapted to moderate light levels. Typically, it includes multifamily residential uses, hospitals, hotels, commercial or business areas, with evening activities in predominately residential areas, etc.
While LZ3 is used for areas of human activity where the vision of human residents and users is adapted to moderately high light levels, Typically, it includes commercial corridors, high-intensity town centers, mixed-use areas with high nighttime activity, etc.
Therefore, based on the description above, LZ2 is the closest lighting zone for this location.
Best regards – Afogreen Build Team