separate the office building from the manufacturing area?

Tim, Unless I am missing some nuance in your question the answer is no. LEED EBOM requires that you certify the whole building. LEED EBOM also includes an Energy Star threshold of 71 which it sounds like this building might have trouble achieving. Per the LEEDuser guidance above, you should check that before you pursue certification. You mention a "tenant fit-out" in your description. If this work is happening now it might be eligible LEED for Commercial Interiors.

Tim, If it is a new building and there are no tenants than it sounds like the Core & Shell standard might be the most applicable. Depending on the % of the manufacturing portion and the relationship to the building ownership that portion may not have to be included (meaning, you might be able to treat it like a tenant.) Take a look at the requirements for C&S as well as NC to determine which is applicable. When you have determined that you should post your questions over on the appropriate forum- this is the string for EBOM projects. Happy to help with those questions when you have decided on a direction.

Hi Tim, While they may have less impact than spaces that are directly affected by the LEED-CS project Owner's scope of work, tenant spaces cannot be entirely excluded from the analysis of a LEED-CS project. Just like EBOM, the BD+C rating systems (such as NC & CS) are intended for 'whole buildings' even if they contain mixed uses or spaces under another party's control (e.g. tenant spaces). You may find it helpful to review the LEED Rating System Selection Guidance (www.usgbc.org/ShowFile.aspx?DocumentID=6667) if you have not already done so. As noted there, per the 40/60 Rule, at least 40% of the total gross floor area of the building (including the tenant spaces in this calculation) must be undergoing new construction &/or major renovation in order to use the LEED-CS rating system. It would also be good to note that there are pretty stringent criteria that must be met (including not only separate Space Use Type or Management, but also separate Ownership, for example) for project teams wanting to certify a major renovation of a portion of a single structure as a separate LEED BD+C project. Please refer to pages 14-17 and page 22 of the LEED 2009 MPR Supplemental Guidance (http://www.usgbc.org/ShowFile.aspx?DocumentID=10131) for full criteria and additional details on this topic.