BOMA (ANSI/BOMA Z) is also still used in some marketplaces; primarily in ultra-competitive, downtown core markets where landlords are. BOMA International is providing the following guidance on the Standard Method for. Measuring Floor Area in Office Buildings, BOMA Z, for persons. Today, BOMA International is the secretariat of a suite of measurement standards : Office Buildings: Standard Methods of Measurement (ANSI/BOMA Z

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Building Owners Management Association, organization which defines standards for measuring space.

It is still important because area numbers based on this standard are in use on leases today. Method A is know as the “legacy” method.

We colour-code and label the areas on the drawing: You can think of this as treating qnsi the suites as though they were all on a single floor.

BOMA Floor Measurement Standards-Overview

Area is calculated in several steps: First the building is surveyed and drawn up on CAD. It can be ordered by phone: This is the latest version of the Office measurement standard. An example would be a mechanical room that services a specific group of occupants, or to allocate common areas in a more targeted way for floors with multiple cores. Schedule B – Measurement Instructions.

Drawing file containing the layout of a floor or a suite. This concept can also be used to allocate areas shared by multiple buildings previously known as Campus Area or Complex Common Area. Send us an email! In the standard, only the first 8 feet up from the finished floor is taken into consideration when determining the dominant portion. It may not correspond to the actual circulation on any particular floor.


They have their own definitions for area that are published online here. It provides a definitive procedure for measuring and classifying floor area in buildings for use in facility management, specifying occupant requirements, space planning, and for strategic facility planning. The new concept of Inter-Building Area allows service and amenity areas to be allocated specifically to the occupants that derive a benefit from the areas.

There is a standard, a standard and there are different methods for calculating office, store and industrial areas. This is a standard used for facility management and should not be used for lease negotiations.

Multiple changes that may be submitted collectively: Greater Washington Commercial Association of Realtors. The following is a presentation that we use to give an overview of BOMA standards for measuring office buildings:.

Usable space, common areas and vertical penetrations are delineated according to specific rules. There are two options available, Method A and Method B. Proposed layout of office space within a suite, used to determine suitability for potential tenants.

The concept of dominant portion determines whether the area is measured to the glass line or inside wall face at windows along the exterior enclosure. Generic Lease Documentation Package: The BOMA standard is designed so that a landlord is able to charge rent for all the area in a building. The main difference between the and standards is that the version includes a method to proportionally allocate building common areas as well as floor common areas to suite rentable areas.

The usable area in each suite is grossed up to arrive at the floor rentable area. It is not available online, but can be ordered by phone: Also, if a floor corridor configuration was changed, then the gross-up on that floor would change. Users can choose one of the two dominant market practices observed in North America – the Exterior Wall Methodology or the Drip Line Methodology – depending on their specific building configuration.


The next innovation is to then gross up all the useable space in the building equally. It is clearly written and has several good illustrations. Please consider our entire bomx as your support team! Common areas are allocated on a floor by floor basis. What follows here is a very brief editorial overview:.

Method B creates a single load factor or gross up for the entire building by means of two innovations. Landlords can choose to use one method or the other. A ratio between the total of all the floor rentable areas and the total area of the building including building common areas such as the lobby and mechanical spaces is calculated.

Architectural plans for the property, typically prepared by architects, designers or land surveyors.

BOMA Standards

Support Team Please consider our entire company as your support team! For andi details, see below. Method B allocates the common areas in the building is a way that results in all the floors having the same gross-up factor.

In both cases, total building rentable area remains the same as BOMA Typically used for space planning, it does not contain tenant names or tenant area references.