The LEED User Checklist and the LEED Credit Template calculate the number of bike racks in the following way: "For Core and Shell projects that are larger than 300,000 ft2, an allowance is the square footage over 300,000 is treated differently. Establish what percentage of the building square footage is over 300,000 ft2 and provide bike racks for 0.5% of the corresponding portion of the total FTE. Establish what percentage of the building is under 300,000 ft2 and provide bike racks for 3% of the corresponding portion of the FTE. So, in a 400,000-ft2 core and shell project, provide racks for 3% of 75% of FTE occupants plus bike racks for 0.5% of 25% of FTE occupants." However, in the Reference Guide under Case 2 it also says that for Mixed-use buildings, you must apply this calculation for each use of the building. I assume that means not to apply it across the total building square footage. Applying the calculation across each use of a very large building results in a greater quantity of bike racks than if it is just applied across the total square footage. But I've noticed that the LEED template does not specify or ask if the project is mixed-use, so this calculation is only done across the total building square footage. Am I misinterpreting the Reference Guide? Has anyone run into this question or discrepancy during LEED review?
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John McFarland
Director of OperationsWorkingBuildings, LLC
LEEDuser Expert
43 thumbs up
August 2, 2012 - 3:05 pm
I received a response to this question from GBCI:
"Yes, mixed-use buildings with a total gross square footage greater than 300,000 square feet must apply the bicycle storage calculation, on page 55 of the LEED Reference Guide for Green Building Design and Construction (2009 Edition), for each use of the building. Currently, the form is not programmed to take all of this into account. You will have to upload these calculations separately into the credit form."
Just wanted to make sure project teams are aware. Mixed use projects require some additional calculations outside of the LEED template form for SSc4.2.
Maya Karkour
EcoConsulting872 thumbs up
January 21, 2013 - 8:30 am
Hi John,
Regarding your statement above "apply bicycle storage calculation for each use of the building",
if my project is a retail mall that has shops, restaurants, and entertainment areas (movies & arcades), do I have to calculate separately for each, or can I consider that there is only 1 use for the building (which is "Mall")?
Thanks,
Omar
Ian McCall
Environmental Engineer13 thumbs up
May 6, 2014 - 11:44 am
Hi All & John,
I'm not sure this thread is still active but the question still perturbs me. I have a 600 000 sqft Core and Shell building with 4 different uses with the bike bicycle storage area is in the first basement level. Let us assume that each area in my building is 150 000 sqft. If I understand correctly (apply page 55 rule) the secure bike space calculation must be done in the following way :
Use 1 (≤ 300,000 (sf)) : Average Annual Building Users * 0.03
Use 2 (≤ 300,000 (sf)) : Average Annual Building Users * 0.03
Use 3 (≤ 300,000 (sf)) : Average Annual Building Users * 0.03
Use 4 (≤ 300,000 (sf)) : Average Annual Building Users * 0.03
OR
Use 1 +Use 2 +Use 3 +Use 4
AND not
1 Single Use Building: (Single Use Average Annual Building Users [ ≤ 300,000 (sf)] x 0.03) + (Average Annual Building Users [ > 300,000 (sf)] x 0.005)
Is the breaking down the building Use 1+Use 2 ... Use 4 the correct way to do the calculation even though the result is much larger that the 1 Single Use Building Calculation?
many thanks,
Ian
Charles Nepps
NH Green Consulting97 thumbs up
May 6, 2014 - 3:00 pm
Based on a GBCI review comment: "Please note that per the LEED-CS Rating System projects over 300,000 square feet must demonstrate that each space type (office and retail) meet the credit requirements separately." I would say if all your "spaces" are offices, you can calc them together, if it's mixed use, office / retail, then you must calc each "type" separately (all the office sqft together, all the retail sqft together)