How to Calculate Square Feet of a 2‑Story House in Los Angeles and What Counts as Square Footage
In Los Angeles, square footage can feel like a moving target.
It’s normal to see 1,820 square feet in one place and 1,640 somewhere else.
This guide shows how to calculate the square footage of a house, how to calculate square feet of a 2-story house, and how to verify square footage of a house in LA.
It’s aimed at homeowners and sellers who are thinking, “how do I figure out square footage,” because a sale deadline is already stressful.
Why LA sellers keep running into square footage questions
That’s the square foot method real estate chatter uses to compare homes, even when layouts don’t match.
That’s why real estate measurements can look inconsistent across listings, tax records, and appraisals.
Many appraisals now follow theAmerican National Standards Institutemeasurement standard (ANSI Z765), andFannie Maerequires full compliance for applicable property types.
That pressure is a big reason square footage reporting is getting more consistent.
What is included in square footage of a house in Los Angeles
When people ask “what counts as square footage in a home,” they usually mean finished interior living space.
Some people even say “house square” when they mean square footage.
Think bedrooms, living areas, kitchens, hallways, and bathrooms.
If you’re wondering “do bathrooms count in square footage,” the practical answer is usually yes for finished interior bathrooms.
Closets come up constantly.
Do closets count in square footage and are closets included in square footage.
Most of the time, closet space is part of the interior floor area, even if a floor plan tool doesn’t list the closet as its own “room.”
Garages are different.
If you’re asking “is garage counted in square footage” or “does garage count towards square footage,” the living-area number most buyers compare usually does not include the garage.
Even ANSI guidance treats garages as separate from finished square footage.
City rules can use different wording than real estate marketing.
For example, City guidance connected to ADU rules points to local code definitions of floor area and excludes non-conditioned spaces like many porches or patios.
Is square footage measured from inside or outside
People ask this as “is square footage measured from inside or outside” and “is house square footage measured inside or outside.”
The real answer is: it depends on the purpose and the property type.
For many single-family appraisal situations, measuring to the outside walls is common practice.
For many condo or apartment situations, measuring inside surfaces (paint-to-paint) is common.
That’s why interior square footage vs. exterior square footage can change the total.
If you’re trying to match public records, you may see “Living Area Source: Assessor” on LA listings.
That’s a clue the number may come from records, not a fresh tape measure.
How to calculate house square footage with the simple method
Here’s the core math behind how to calculate square footage.
Length (ft) × width (ft) = square feet.
This is how to measure square feet of room and how to measure sq ft of a room.
A 10 × 12 room is 120 square feet.
If you’re trying to “how to measure 500 square feet,” a 20 × 25 space is 500 square feet.
Quick checklist for how to measure square feet of a house in real life:
Sketch each level and label the spaces.
Decide if you’re measuring inside walls (planning) or outside walls (matching many appraisals), then stick with it.
Measure each rectangle and write the length of house runs and room spans in feet.
Do length × width for each section, then add sections to calculate square footage of home by level.
Add the levels to calculate total square footage of a house, and note what you excluded (garage, patio, unfinished).
For non-rectangles (super common in LA):
Split the room into smaller rectangles.
Calculate each rectangle.
Add them up.
That’s a clean way to calculate square footage of a house without fancy software.
How is square footage calculated in a 2 story house
How to calculate square feet of a 2-story house is mostly “measure each level, then add.”
Measure the downstairs finished floor area.
Measure the upstairs finished floor area.
Add them together.
That’s how do you get the square footage of a house and how is sqft calculated for a house with two levels.
Fast example:
Downstairs footprint is 30 × 40 = 1,200 square feet.
Upstairs footprint is 30 × 30 = 900 square feet.
Total house square footage is 2,100 square feet.
Two-story “gotchas” in Los Angeles:
Open-to-below areas (two-story foyers, vaulted living rooms) have no upstairs floor, so they don’t count as upstairs square feet.
Stairs are handled with standardized guidance so they’re not double-counted as random “air.”
Ceiling height can matter in standardized reporting, especially in rooms with sloped ceilings, finished attics, or bonus rooms.
If an area is partially below grade (common on slopes), it may be reported separately as below-grade finished area in standardized appraisal language.
How to find square footage of a house and verify it in LA
If you’re trying to how to find square footage of a house quickly, start with records.
Old listings and public records often show a number (often sourced from the assessor), but it may be outdated after remodels or additions.
If additions, enclosures, or a garage conversion are part of the story, permits matter.
TheLos Angeles Department of Building and Safetyexplains how to request permit records and use online building records.
If you need the most defendable number for a refinance or a high-stakes sale, hire a licensed pro.
ANSI-style measuring and standardized reporting exist to make results more repeatable.
California risk-management guidance also recommends disclosing discrepancies and being clear about your source instead of pretending there’s one perfect number.
Q&A on closets, garages, upstairs, and inside vs outside
Q: Does closet space count as square footage and does square footage include closets?
A: In most homes, yes.
Closets are usually part of the finished interior floor area, even if they aren’t called out as a separate room.
Q: Do you count closets in square footage?
A: Same idea.
If it’s inside the finished space, it usually counts.
Q: Is the garage part of the square footage?
A: Usually not for “living area.”
Garages are treated as separate from finished square footage in common standards and reporting.
Q: Does a garage count as square footage if it was converted?
A: It depends on permits and whether it functions like real living space.
Start by checking permit history.
Q: Does house square footage include upstairs?
A: Yes for finished upstairs floor area.
No for “open to below” airspace.
Q: Is house square footage measured inside or outside?
A: Both are used, depending on context.
That’s why two sources can disagree even if nobody is trying to be misleading.
If you need to sell fast, you can stop chasing the “perfect” number
If you’re measuring because you’re getting ready to sell, you don’t have to solve it alone.
MaxNet Homes buys houses as-is in Los Angeles and helps sellers dealing with foreclosure, divorce, inherited homes, and tight timelines.
They’re cash home buyers in Los Angeles, which can mean fewer financing surprises than a traditional sale.
Founder Tricia Watts has been featured onHGTVand theFlipping 101series.
Their site also says sellers can get a fair cash offer within 24 hours with no repairs and no commissions.
A recent 5‑star seller review highlights the tone MaxNet Homes brings to hard situations: “Transparent… genuinely cared about our situation.”
If you’re thinking “I need to sell my house fast in Los Angeles,” start here:sell my house fast.
If you want the full rundown on cash sales, read We Buy Houses for Cash in Los Angeles: Pros, Cons, and How It Works.
