BOMA Calculations for Seattle & Bellevue, WA Area

BOMA, or the Building Owners and Managers Association International, is known for its suite of floor measurement standards that are widely utilized in the real estate industry. These standards provide a systematic approach for measuring various types of property, including office buildings and industrial spaces, ensuring consistency and accuracy in determining floor areas. Understanding BOMA calculations is essential for property owners and managers as it impacts crucial aspects such as lease agreements, rental rates, and overall space utilization.

Our BOMA Calculation Services

In the Seattle and Bellevue, WA area commercial space owners looking for reliable BOMA calcs should consider partnering with Hazelrigs Architecture. With a track record of excellence and precision in architectural design and measurement, Hazelrigs Architecture stands out as a trusted partner for accurate BOMA calculations tailored to the unique needs of commercial properties in the Seattle and Bellevue area.

Choosing Hazelrigs Architecture for BOMA calculations in the Seattle and Bellevue area offers several distinct advantages. Firstly, we are well-versed in BOMA standards and methodologies, ensuring that calculations are conducted with the highest level of accuracy and compliance. This expertise is crucial in navigating the intricacies of BOMA measurements and ensuring that property measurements align with industry best practices.

Secondly, by opting for Hazelrigs Architecture, commercial space owners can benefit from personalized service and attention to detail. We understand the importance of precise floor measurements in commercial real estate transactions and leasing agreements, and our commitment to delivering reliable and thorough calculations sets us apart as a preferred choice for BOMA calculations.

Partnering with Hazelrigs Architecture provides commercial space owners in the Seattle and Bellevue area with peace of mind knowing that their BOMA calculations are handled with professionalism, integrity, and a focus on delivering results that meet industry standards and requirements. Our dedication to accuracy, efficiency, and client satisfaction makes us a trusted partner for BOMA calculations in Bellevue, ensuring that commercial property owners have the information they need to make informed decisions and effectively manage their real estate assets.

Hazelrigs Architecture has provided BOMA calculations for tenants and landlords throughout the Seattle and Bellevue area for over twenty years. Colleen has provided her expertise in this arena for many different types of buildings, using various versions of the Standards.


  • Multi-Care Full-two story building analysis, Tukwila, WA to determine suite rentable space after a tenant expansion
  • Bloodworks Headquarters Seattle, WA 9 level building, to determine the feasibility of a sale
  • Bright Horizons in California, review of BOMA calc of multi-sotry building to confirm tenant lease area
  • Digital Controls Inc. in Renton, WA prospective new full-1 story building office space
  • Rexland Building Seattle, WA second floor,  for Vulcan Real Estate prospective tenants
  • Library Repository Seattle, WA full-2 story building analysis for Vulcan Real Estate for office tenants
  • Kennedy Building Seattle, WA first floor cold-shell retail space in mixed-use building
Floor A Bloodworks BOMA

BOMA Standards

"For more than a century, BOMA International has set the standard for measuring buildings. In 1915, BOMA published its first office standard, Standard Method of Floor Measurement. Throughout the years the standard has been revised to reflect the changing needs of the real estate market and the evolution of office building design. Today, BOMA International is the American National Standards Institute (ANSI) secretariat for a suite of area measurement standards." BOMA International

Standards for previous versions may still be applicable to a building where the older Standard was initially used to determine leasable space. The Office Building Standards offer Methods A and B. Method A is consistent with the 1996 Legacy Standard. Method B streamlined and simplified the calculation, providing a whole building leasable multiplies, applying common space evenly throughout the building.

ANSI/BOMA Standards Offered *

  • Legacy BOMA, Z65.1-1996
  • Gross Building Area, Z65.3-2009
  • Office Buildings, Z65.1-2010
  • Retail Buildings, Z65.5-2010
  • Mixed Use Buildings, Z65.6-2012
  • Office Buildings, Z65.1-2017
  • Gross Building Area, Z65.3-2018
  • Office Buildings, Z65.1-2024

* Hazelrigs Architecture does not provide BOMA calcs for residential buildings.

Get in Touch

Contact us for pricing for building measurement services.