The number the listing agent
left off the floor plan
When listing agents share floor plans, the square footage is almost never included. That is not an oversight.
Measure it yourself in under 2 minutes. Know what you are actually buying.
$9 day pass · 48-hour money-back guarantee
What appraisers see every day
The listing says 2,200 sq ft.
The floor plan says something different.
Square footage on a listing comes from the tax record, which comes from a permit estimate, a builder's spec sheet, or an appraisal done years ago. Nobody remeasures it when the house sells.
The listing agent gets a floor plan from the seller. They share it with you. But the square footage is conspicuously absent. Because if they included it and you measured it, the gap would be obvious.
As a buyer, you are negotiating price per square foot. A 200 sq ft discrepancy at $300/sq ft is $60,000. That money does not come back at closing.
From raw floor plan to measured GLA
Upload any floor plan and get every perimeter measurement with total size.
How it works
Measure it yourself. Takes 2 minutes.
Get the floor plan
Ask the listing agent for the floor plan. It's usually a PDF or image attached to the listing. Any to-scale image works.
Upload and trace
Upload to PlanSnapper and click around the exterior perimeter. Takes about 60 seconds for a typical home.
Get the real number
Enter one known wall length for scale. PlanSnapper calculates ANSI-compliant GLA, the same methodology licensed appraisers use.
What to do with the number
If the number is off, you have options.
Negotiate the price
If the home is listed at $300/sq ft and measures 150 sq ft smaller than advertised, that is $45,000 in negotiating leverage. Use it.
Request an independent appraisal
Before closing, you can request your own appraisal. A licensed appraiser will measure the home and the discrepancy becomes part of the record.
Walk away informed
Sometimes the numbers are close enough that it does not matter. But you should know before you sign, not after.
Pricing
Simple pricing.
One floor plan or many? Get 24-hour access or go unlimited.
- ✓ Up to 5 floor plans
- ✓ Full access for 24 hours
- ✓ Great for a single job
Billed $288/yr · 2 months free
- ✓ Unlimited floor plans
- ✓ Save and resume anytime
- ✓ Includes all current and future tools
- ✓ Best for ongoing work
- ✓ Everything in Pro
- ✓ Multiple team seats
- ✓ Shared project library
- ✓ Priority support
No setup or downloads required · Instant access after checkout
Common questions
Know before you close.
Upload the floor plan the listing agent sent you. Get the real square footage in under 2 minutes. $9 for a full day of access.
48-hour money-back guarantee