The document summarizes the Building Owners and Managers Association (BOMA) standards for measuring office building space over multiple revisions from 1980 to 2010. The 1980 standard calculated rentable area as usable area plus floor common areas. The 1996 standard added building common areas distributed to all tenants. The 2010 standard offers two methods - Method A is similar to 1996, while Method B applies a single gross-up ratio to all floors by defining base building circulation assigned to each floor.

1. Office Buildings BOMA Measurement Standard s

2. Overview Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B BOMA: Building Owners and Managers Association International ( www.boma.org ) Accepted and approved by the American National Standards Institute (ANSI)  1980 - 1989  1996  2010 - Method A - Method B

3. Area Calculations - Process Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

5. Key Concepts – Gross Measured Area This is the total area within the perimeter Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

6. Key Concepts – Dominant Portion Rules for surface to measure to at the floor plate perimeter Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

7. Key Concepts – Major Vertical Penetrations These are excluded from Rentable Area Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

8. Key Concepts - Usable Area Area available for tenant activity within their suite Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

9. Key Concepts – Floor Common Area Washrooms, corridors, utility rooms etc. that serve the floor Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

10. BOMA 1980 calculation Usable Area + Floor Common Areas Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

11. BOMA 1996 - Building Common Area Shared by all building tenants Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

12. BOMA 1996 - Global Summary of Areas Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B Usable Area Floor R/U Building R/U Rentable Area Vertical Penetrations Building Common Floor Common

13. BOMA 1996 – Area calculation Usable Area + Floor Common Area + Building Common Area Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

15. BOMA 2010 - Terminology Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B BOMA 80-96 BOMA 2010 Gross Measured Area Interior Gross Area (IGA) Usable and Store Area Occupant Area Building Common Area Building Service Area Building Amenity Area Floor Common Area Floor Service Area Floor Amenity Area Building R/U Ratio R/O ratio Floor R/U Ratio R/U ratio

18. BOMA 2010 Method A - Global Summary Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B Usable Area Floor R/U Building R/O Rentable Area Vertical Penetrations Building Amenity Floor Common Building Service

19. BOMA 2010 Method A - Global Summary Parking and Storage areas Building Amenity and Building Service areas Provision for Capping Rentable Areas Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

20. BOMA 2010 Method A - Area Calculation Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

22. BOMA 2010 Method B Base Building Circulation and Extended Circulation Areas Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

23. BOMA 2010 Method B - Global Summary Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B Usable Area Load Factor (B) Rentable Area Vertical Penetrations Service and Amenity Areas Base Building Circulation

24. BOMA 2010 Method B - Area Calculation Overview > Key Concepts > 1980 > 1996 > 2010 > Method A > Method B

25. Summary Summary BOMA 1980 : Common areas distributed on a floor by floor basis BOMA 1996 : Allows for building common areas to be distributed to all tenants BOMA 2010 Method A : Similar to BOMA 1996 BOMA 2010 Method B : The same gross-up is applied to all the floors by creating “base building circulation” and assigning it to all floors regardless of layout More information Copies of measurement standards can ordered online: www.boma.org Link to this presentation: http://tinyurl.com/29xwcuc