Project DirectorNorth Shore LIJ Health SystemMar 11 2010Member
226 Thumbs Up
How should I go about calculating the FTEs for a lobby project? Staff is easy, how do I go about transients etc? It's one of two entries into a Hospital.
In our project we have about 1000 office places but we know that there will never be 1000 persons there at the same time, many will be away on business travel, some work at home etc.
A qualified guess by the tenant is that about 2/3 will be present at the same time.
Shall we use 2/3x1000=667 FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories. or 1000 FTE?
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Tristan Roberts
Editorial Director – LEEDuser, BuildingGreen, Inc. Jun 14 2010Moderator
Just thinking out loud here, but I think it really matters which rating system you're in. For a design/construction rating system, I think definitely 1,000 FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories., because that's what the building is designed for, and that's what another tenant might end up having.
If this is in LEED-EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems., then I could see justifying less than 1,000, but I'm not sure. I don't think there are any hard-and-fast rules about this.
It is LEED C/S and we are in late design, construction has started and we now know the tenant. The tenant is a multinational company with many offices around the world, so they know that their office-spaces are not used 100%.
The office is designed to be very flexible so it can easily be reorganised. There can be fewer office-places, but not so many more than 1000.
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Tristan Roberts
Editorial Director – LEEDuser, BuildingGreen, Inc. Jun 14 2010Moderator
Since it's LEED-CS, have you looked at using the default occupancy numbers from CS Appendix 1 in the LEED BD&C Reference Guide? It's possible that those numbers will be favorable to your situation, and easily defensible with your LEED review.
But can we use them when we know the actual FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories., which we do since the tenant is known and the tenant fit-out is is included in the project through diffrent owner/tenant or tenant/contractor agreements?
It says in CS appendix 1 that projects that know the tenant occupancy must use actual numbers as long as they not are greater (sqft/employee) than in table 1.
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Shannon Gray
Consultant, YRG sustainability Jun 23 2010Guest1659 Thumbs Up
If you know the project FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories. you should use that and not the default. In regards to the 667 vs 1000 FTE, I would play it safe and go with the 1000 FTE.
Neil, let's be clear -- FTEs and transients are two distinct numbers. So it sounds like you're all set with FTE's. There are no etched-in-stone rules for calculating transients. Is there a current lobby where you could stand with a clicker and count the people?
There is more discussion on this topic on SSc4.2 that I would recommend.
8 Comments
FTE
In our project we have about 1000 office places but we know that there will never be 1000 persons there at the same time, many will be away on business travel, some work at home etc.
A qualified guess by the tenant is that about 2/3 will be present at the same time.
Shall we use 2/3x1000=667 FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories. or 1000 FTE?
Just thinking out loud here, but I think it really matters which rating system you're in. For a design/construction rating system, I think definitely 1,000 FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories., because that's what the building is designed for, and that's what another tenant might end up having.
If this is in LEED-EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems., then I could see justifying less than 1,000, but I'm not sure. I don't think there are any hard-and-fast rules about this.
It is LEED C/S and we are in late design, construction has started and we now know the tenant. The tenant is a multinational company with many offices around the world, so they know that their office-spaces are not used 100%.
The office is designed to be very flexible so it can easily be reorganised. There can be fewer office-places, but not so many more than 1000.
Since it's LEED-CS, have you looked at using the default occupancy numbers from CS Appendix 1 in the LEED BD&C Reference Guide? It's possible that those numbers will be favorable to your situation, and easily defensible with your LEED review.
But can we use them when we know the actual FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories., which we do since the tenant is known and the tenant fit-out is is included in the project through diffrent owner/tenant or tenant/contractor agreements?
It says in CS appendix 1 that projects that know the tenant occupancy must use actual numbers as long as they not are greater (sqft/employee) than in table 1.
If you know the project FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories. you should use that and not the default. In regards to the 667 vs 1000 FTE, I would play it safe and go with the 1000 FTE.
That I can do. Thanks
That I can do. Thanks
FTE vs. transient
Neil, let's be clear -- FTEs and transients are two distinct numbers. So it sounds like you're all set with FTE's. There are no etched-in-stone rules for calculating transients. Is there a current lobby where you could stand with a clicker and count the people?
There is more discussion on this topic on SSc4.2 that I would recommend.
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