ANSI Z765 Floor Plans & GLA Reports for Appraisers
Fannie Mae requires ANSI Z765 compliance. Tape measuring doesn't cut it anymore. We scan the property with LiDAR and deliver a compliant GLA report with a measured floor plan — more accurate, more defensible, and faster than measuring by hand.
Why the industry is moving to scan measurement
Fannie Mae's selling guide now requires appraisers to follow ANSI Z765 for GLA measurement. That means measuring exterior dimensions above grade, following specific rules about finished vs. unfinished area, and documenting calculations. The standard was always the requirement — but enforcement has gotten stricter, and AMCs are increasingly checking for ANSI compliance on their review.
Tape measuring can produce Z765-compliant results if done carefully. The problem is accuracy and time. A 2,500 sq ft two-story home takes 45–60 minutes to measure by tape. LiDAR captures the same building in 20 minutes with millimeter-level point cloud accuracy. Our plans come out to ±1 inch — about 6x more accurate than typical tape measurements.
Why scan-measured is more defensible
- Timestamped LiDAR scan creates an immutable record of conditions at the time of capture
- Every measurement is traceable back to the scan data — no question about which wall a dimension came from
- If a loan is audited 18 months later and the GLA is challenged, the scan data is your documentation
- Peer reviewers and review appraisers are increasingly familiar with scan-based measurements as best practice
Pricing
- ANSI Z765 GLA Report — $250 flat
- GLA Report + Virtual Tour bundle — $350
- GLA Report + Measured Floor Plan + Virtual Tour — contact for quote (typically $450–$600 depending on size)
- All pricing subject to travel fees outside 30 miles of Grand Rapids
Order what fits your workflow. The base $250 report covers ANSI Z765 compliance. Add the virtual tour or full floor plan package when you need more from the visit.
How it works
- You schedule a scan (or we coordinate directly with the homeowner or agent)
- We scan the property in 20–40 minutes
- We produce the ANSI Z765 GLA report and measured floor plan
- You receive a PDF report and floor plan within 1–2 business days
- Include it in your appraisal file like any other exhibit
Frequently Asked Questions
Is your GLA report formatted for appraisal files?
Yes. The report is formatted as an exhibit you can attach to your appraisal file. It includes the ANSI Z765 area calculations, exclusions noted per standard, and the measured floor plan showing exterior dimensions.
Do I need to be present for the scan?
No. You can schedule the scan with the homeowner or listing agent directly, or we can coordinate access with them on your behalf.
What if the property is complex — multiple levels, partial basement?
Complex properties are exactly where scan measurement excels. We capture every level in a single visit, and the area calculations follow Z765 rules for each level type.
Can I use your floor plan in the appraisal report?
Yes. The floor plan is delivered as a PDF designed for use as an exhibit in appraisal reports.
What areas do you serve?
Grand Rapids and West Michigan. Travel fees may apply beyond 30 miles.