Hey there, fellow house hunters! Are you tired of scratching your head trying to figure out the square footage of that dream house you've been eyeing? Well, fret no more! We've got the ultimate guide on how to calculate the square footage in a house for sale, and we promise it won't make your brain ache. So put on your imaginary hard hat and let's get calculating!

  1. Grab Your Trusty Tape Measure: To start off, you'll need a good ol' tape measure. Make sure you have one handy, preferably a flexible one. It's like having a superhero sidekick, but for measuring houses!

  2. Embrace the Art of Estimation: Now, we understand that not every room is a perfect rectangle. Some might be L-shaped, have curved walls, or even resemble abstract art. But fear not! We're going to use the magic of estimation to handle these quirks. Remember, we're not building a rocket ship here, just trying to get a rough idea of the square footage.

  3. Break It Down: Divide and conquer, folks! Start by breaking down the house into smaller, manageable sections. Measure each room individually, including closets and hallways. For those oddly shaped areas, split them into simpler shapes

What is included in the square footage of a house?

When an appraiser calculates the square footage of a home, it will only measure interior spaces that are heated and cooled. This includes bedrooms (and closets), bathrooms, hallways, a kitchen, living areas, enclosed patios, and finished attics.


Is house square footage measured inside or outside?

Calculations for the square footage of a home are taken from the outside dimensions of the structure (so exterior and interior wall thickness is included). If your home exterior is easily accessible, you can do it yourself with a 100-foot tape measure.

How do real estate agents measure square footage?

Calculate the square footage by multiplying the length of the room by the width in feet. Square or rectangle with extras. If you have an oddly shaped room, you can make the process easier by breaking a room down into smaller rectangles. Measure a nook separately from the rest of the room, for example.


How does an appraiser calculate square footage?

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.

What is not included when the square footage of your house is calculated?

In general, areas like staircases and closets count as finished square footage. Spaces like garages, three-season porches and unfinished basements or attics are not included in the square footage of a house.

Is the square footage of a house the same as the roof?

If your home has sections, you'll need to get the square footage of each section and add them together. Keep in mind this is a general estimate. Your home's square footage is typically slightly smaller than your roof's square footage. To get a more accurate number, factor in roof pitch and overhang.

Frequently Asked Questions

What is included in real estate square footage?

Any space that has walls, flooring, ceiling and heat would count as finished square footage. So, it's likely that stairwells, closets, walk-in pantries and other areas you might be questioning would contribute to the square footage count of a home.

Where do I find the square footage of my property?

Finding Your Square Footage

The Assessor's Office in a given town typically has this on what's called a field card, but homeowners may also be able to get that information from the Town Building Department,” says Dawn Ruffini, 2022 President at Massachusetts Association of Realtors.

How do appraisers adjust for square footage?

Adjustments are calculated by multiplying an adjustment factor times the quantity difference between the subject and comparable. For example, if the GLA for the subject is 2200 sq ft and for a comparable, 2000 sq ft, the difference, 200 sq ft would be multiplied by the adjustment factor.

What is not included in square footage of a house?

In general, areas like staircases and closets count as finished square footage. Spaces like garages, three-season porches and unfinished basements or attics are not included in the square footage of a house.

What is a common way to measure areas in real estate?

There are three common real property measurement methods; the Gross Building Area (GBA), Gross Living Area (GLA), and the American National Standard Institute (ANSI). While each method is specific in what areas are included and excluded, all of them calculate the property size based on square footage.

How is square footage calculated on house plans?

To calculate feet squared (or sq. ft. for short), determine the length and width of the area you are working with, measured in feet. Multiply the length by the width and you'll have the square feet.

Do basements count in square footage?

Does a basement count toward overall square footage? As a general rule of thumb, listing agents and appraisers don't count a finished basement toward the overall square footage, especially if the basement is completely below grade—a term that means below ground level.

FAQ

How to calculate square footage of a house for sale
Jun 14, 2023 — The gross building area can be easily calculated by measuring the exterior walls of your home to calculate the area, and multiplying by two or 
How to calculate square footage of house for sale
Mar 14, 2023 — Multiply the width by the length and voila! You have the square footage. Say a room is 20 feet wide by 13 feet long, then 20 x 13 = 260 square 
How do you figure square footage for a house for sale?
When measuring square footage, just use a measuring tape or a laser measure to obtain its length and width. Multiply the two, and you have the total area or square footage in sq ft (or square meter if using metric).
How do appraisers calculate square footage?
The appraiser should use the exterior building dimensions per floor to calculate the above-grade gross living area of a property. For units in condo or co-op projects, the appraiser should use interior perimeter unit dimensions to calculate the gross living area.
Is the square footage on Zillow accurate?
That is why when I note the square footage in my reports, I note the source. Zillow is zero percent accurate. It is an automated web data aggregator, and the courts have ruled data aggregators (Zillow) have zero liability for the information they post.
What is the square footage of a property?
What Is Square Footage? The square footage of a property is a measurement of its living space calculated in square feet. One square foot is measured by marking out a square of space with each side measuring one foot. The total square footage of a property is the total number of one-foot squares of livable floor space.

How to find square footage of house for sale

Do bathrooms count as square footage? When an appraiser calculates the square footage of a home, it will only measure interior spaces that are heated and cooled. This includes bedrooms (and closets), bathrooms, hallways, a kitchen, living areas, enclosed patios, and finished attics.
How do you find the area of a land with 4 unequal sides? Calculating area of land with 4 unequal sides would require you to first, sketch out the land using the dimensions provided. Then make an appropriate diagonal. Next, determine the areas of the two triangles that the diagonal creates. The size of the land is calculated by adding the areas of the two triangles.
How do you measure the area of a house? Step 1 measure the exterior of the home at ground level beginning. And ending at the same corner. Include chimneys windows and rooms only if they're at ground level and measure to the nearest inch.
How do you calculate total area? The basic formula for calculating area is Length times Width (LxW). If you are estimating the area for a rectangle you'll always use LxW. If you are calculating the area for a square you can multiply the length of one Side times itself, or (S2).
How do you calculate uneven land area in square feet? To calculate the square footage of an irregular shape, divide the irregular shape into smaller shapes, find the area of each, and then add up all the results.
What is included in square footage of a house? When an appraiser calculates the square footage of a home, it will only measure interior spaces that are heated and cooled. This includes bedrooms (and closets), bathrooms, hallways, a kitchen, living areas, enclosed patios, and finished attics.
  • How can I find the square footage of my property?
    • If the property is a perfect rectangle, simply measure the length and width and multiply those two numbers together. For example, if your one-story house is 60 feet wide by 40 feet long, then your property is 2,400 square feet (60 x 40 = 2,400).
  • Do you measure the outside of a house to get square footage?
    • Calculations for the square footage of a home are taken from the outside dimensions of the structure (so exterior and interior wall thickness is included). If your home exterior is easily accessible, you can do it yourself with a 100-foot tape measure.
  • How is square footage calculated when building a house?
    • Calculating gross square footage is simple. Calculate the exterior dimensions of your building, as demonstrated in the above graphic. Measure the length and width of the building's walls. Multiply the length and width measurements to find square footage.
  • How do realtors calculate square footage?
    • Multiply the width by the length and voila! You have the square footage. Say a room is 20 feet wide by 13 feet long, then 20 x 13 = 260 square feet.
  • What is the formula for a square footage estimate?
    • The next step in how to calculate square footage is to plug your measurements into the square footage formula: L x W = A (in square feet). How to find square feet: multiply the length measurement in feet by the width measurement (in feet).
  • Is a garage included in square footage?
    • Does the garage count in the square footage of a house? The garage does not count towards the square footage of a house, as that is considered an unfinished space. A garage will only count towards the square footage of a home is if it has been legally converted into a living space.

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