Extreme Measures Planmine™ Help Desk
About Us
Sign In / Up

Extreme Measures

This help desk is a free resource intended for discussion purposes only. Neither BOMA, its chapters, affiliates, or Extreme Measures Inc.® are responsible for the information, comments or opinions expressed herein. For complete information, refer to the official publications of the standards themselves.

FAQ & Read-Me Articles
What are as-built drawings / models?
What is CAD and BIM?
How do I resolve an area dispute?
Where can I get measurement standards publications?
BOMA Office Overview
BOMA Industrial Overview
BOMA Retail Overview
BOMA Multi-Unit Residential Overview
BOMA Gross Areas Overview
BOMA Mixed-Use Overview
IPMS for Office Overview
Alternative Methodologies
Glossary of Industry Terms

Interstitial Space

Bryan Whitley
Charleston County
April 14, 2015

Background:
Building originally built as hospital with full 11th floor (18,000 interior SF) penthouse below roof level. Floor originally housed mechanical equipment to serve 10th floor surgery. Building has been converted to office use and all mechanical equipment that supported surgery (and surgery) removed. Remaining floor contains top of shaft elevator machine rooms and (1) stair, and is otherwise empty. Developer plans to extend elevator service and additional stairs to floor and convert to lease space in 1-2 years. Currently developer proposes that entire floor be considered building service area in lease calculations.

Question 1:
Should the SF (other than elevator and stair) be considered "interstitial space" since it is not available for general occupancy due to it having a lack of provisions for egress, and be excluded from the IGA? Elevator machine rooms would be considered building service area and stair considered a vertical penetration.

Question 2:
If SF is considered building service area; when occupant area of "0" and building service of "18,000" is entered in spreadsheet, I get errors. How is this handled?

David Fingret
Extreme Measures Inc.
April 22, 2015

Hi Bryan,

I believe the empty area on the 11th floor should be interstitial space until it is converted.

It's difficult to answer question 2 without seeing the spreadsheet, but that is a bit beyond the purpose of this forum.

Thanks,

Your Comments ...

Please allow up to 24 hours for your question to appear after it is reviewed.