# Quick Answer: How Is Useable Square Footage Determined?

## What is the difference between the rentable and usable area called?

A helpful tool that tenants and landlords use to understand the difference between a facility’s rentable square feet and usable square feet is called the load factor..

## How does Zillow calculate square footage?

Multiply the rectangle’s length by its width to get the area in square feet.

## How does an appraiser determine the square footage of a house?

Appraisers tend to use one common measurement type when it comes to measuring the square footage. They measure the Gross Living Area of your home. For condominiums, they generally just measure the interior meaning only the inside area of your unit. Some may add 6 inches to the measurement for the wall thickness.

## How do you calculate core factor?

The core factor can be calculated by dividing the rentable square footage by the usable square footage. It is imperative that we, as Tenant Rep’s educate our clients on understanding this number in order to allocate costs and compare different options.

## What is BOMA measurement?

The “Standard Method for Measuring Floor Area in Office Buildings” is published by BOMA International (The Building Owners and Managers Association) and approved by ANSI (American National Standards Institute). … BOMA International first developed the standard in 1915.

## What is the difference between net and gross square footage?

The Gross Square Footage is calculated from the outside of the exterior walls and is inclusive of all space within minus areas that are open to below. The Net Square Footage is the total square footage of all the rooms/areas on a floor.

## What is livable square footage?

When house plan sellers refer to Total Living square feet, they are referring to the “living area” of the home. This can be thought of as the area that will be heated or cooled. It is called the living area because this is where you spend your time. An attic, while a useful storage area, is not living space.

## Do you include walls in square footage?

Any space that has walls, flooring, ceiling and heat would count as finished square footage.

## How do you divide rent by square footage?

To get an accurate breakdown, take the square footage of each bedroom and divide by the total square footage of the apartment. This gives you the percentage of space each room occupies. Take each individual percentage and apply it to the total cost of rent.

## Is attic space counted in square footage?

Below grade spaces (basements, dens, etc.) do not usually count toward a home’s square footage. … Finished attic square footage is included if an area has at least seven minimum feet of clearance. Covered, enclosed porches can only be included if they are heated using the same system as the rest of the house.

## How do you calculate circulation factor?

It’s basically all the circulation in the plan. Circulation multiplier is the net area (programmed space on the floor) divided by the circulation area (which you will have to actually calculate off the plan). It almost always is a number one (1) with decimals, for example 1.65.

## What is the difference between usable and rentable square feet?

The rentable square footage comprises of the usable square footage plus a fraction of the building’s shared space. The shared space constitutes the common areas of the building, including restrooms, shared hallways, elevators, stairwells, and storage rooms, cafeteria, lobby, fitness center etc.

## How do you calculate common area factor?

This number is based on the percentage of common areas found in the building. If a building has a total square footage of 100,000, with 85,000 usable square feet (which is to say 15,000 square feet of common areas), the load factor would equal to the rentable square feet divided by the usable square feet, or 1.15.