Hi, I have read through the comments and understand the requirements for the Enhanced Commissioner to be a 'disinterested' or 'independent' body.

if our building is part of a bigger development which has a central waste water treatment plant does this count as being an onsite plant and will it count towards option 2.reducing 50% of building

Hello, I'm working on a project where a very large amount of the soil had to be removed due to contamination (we are pursuing SSc3) and clean soil had to be brought in from off-site.

I am working in the LEED certification of a Shopping Centre (Core & Shell) where the following stores will be installed: Bank, Beauty Salon, Laundry, Library, Pharmacy, Post-Office, Restaurant,

Is a CI project required to replace the filters of the main building AHU? The project is a 5000 sf office space tenant in a 162,000 sf building (no AHU's in the space).

The RP credits for the project zip-code shows the same credit reference listed for RP 5 and RP 6. Does this mean that we get 2 RP points if we achieve the double listed credit?

Option 1 compliance path indicates the minimum % savings is 10% for new construction. In the LEED v4 comments a mention was made that the threshold was 12% for v2009.

On a CI 2009 project we have slab on grade that was initially poured without a water vapor barrier causing moisture issues in the entire sturcture.We would like to polish the concrete and add Reac

Hi, I have a doubt related to the definition of "semi-conditioned" spaces.