Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 1497.7 ft MSL · USGS ground 1497 ft · Δ 1 ft
Structure cross-check (Overture / OSM)
Rooftop pad — the coordinate falls on a building footprint
Building height ≈ 21 ft — measured independently of the FAA record
Cross-source consensus
⚠ Sources conflict — pad is on a building, but FAA elevation reads ground level
Stale-low FAA elevation (the 6FD8 class) — never updated for the rooftop pad. Treat the recorded elevation as unreliable.
Cross-checked against independent public data — USGS 3DEP terrain, Overture/OSM building footprints, the federal hospital registry, and measured dimensions. The State of the U.S. Heliport Record →
The recorded pad is 65 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
35 ft
eVTOL FATO required
100 ft
FAA EB-105 vertiport pattern — 2× a ~50 ft eVTOL controlling dimension, plus a 125 ft safety-area side.
Load-bearing FATO
100 × 100 ft must be structural
No heliport precedent — typically the binding gate for rooftop and hospital pads.
Obstruction clearance
High obstacle within 0.5 nm — conflicts with the expanded footprint and 8:1 approach
Measured against FAA pad geometry and federal FATO sizing (EB-105). A dimensional pre-screen — site-level validation required, and independent of the underwriting risk score.
FAA compliance
Q1 · FAA registrationPASS
Active FAA NASR 5010 record.
Q2 · Airspace determinationON_FILE
OE/AAA ASN 2024-AWP-4531-NRA: DET-to-Prop
Q3 · State enforcementMODERATE
State has partial enforcement framework.
Q4 · NFPA 418PARTIAL
IBC references NFPA 418 for rooftop facilities. Standalone fire code reference not confirmed.
Construction pressure: 1 crane case filed within 0.25 nm in the last 30 days (closest 150 ft AGL at 0.08 nm, FAA case 2026-AWP-14476-OE).
Situations are rules-based inferences across the obstruction, observed-operations and record layers, re-evaluated nightly; each carries its evidence and closes when the condition no longer holds.
FAA OEAAA airspace determinations5
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2024-10-30 · 1 in the last 24 months
NRAARCH-DeterminedASN 2024-AWP-7953-NRA2024-12-11
Form 7480 · 0 ft AGL — LAP ASN # 2024-WSA-201-LAP-New privately owned and operated heliport adjacent to the airport
NRADET-to-PropASN 2024-AWP-4531-NRA2024-05-08
APRON - Construction · 20 ft AGL — APRON Construction
NRAARCH-DeterminedASN 2021-AWP-4544-NRA2022-03-24
Heliport · 0 ft AGL — LAP ASN # 2021-WSA-153-LAP
NRAARCH-DeterminedASN 2021-AWP-1993-NRA2021-06-01
Heliport · 0 ft AGL — LAP ASN # 2021-WSA-30-LAP. Construction of a new helipad
NRAARCH-DeterminedASN 2008-AWP-190-NRA2008-06-19
Heliport · 0 ft AGL — ESTABLISH A PRIVATE USE CONCRETE SURFACE HELIPORT.\r\n\r\nPlease ensure all interested parties within your organization are made aware of this airspace study.
Blueprint
The record vs. what we measured
69/100
DATA INTEGRITY
Surface elevation
The FAA record places this pad at 1497.7 ft. USGS terrain plus the building put the actual rooftop at 1517 ft — a +19.299999999999955 ft difference the federal record doesn’t carry.
eVTOL footprint
The 35 ft pad is 65 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation1497.7 ft1517 ft · USGS+structure
Structurenot on recordRooftop pad
Pad dimensions35 ft side (filed)35 ft side · measured
Coordinate integrityas filedterrain cross-checked
Independent inspectionowner self-reportednone on record
✓Federal record
→
✓Cross-checkedUSGS · Overture · dimensions
→
3Physically verifiedGround Truth capture
Obstructions, exact FATO geometry, surface condition, and downwash exposure require a physical Ground Truth capture — not shown above as measured. A field verification completes the record and writes the measured truth to this facility’s authority.
This page is the public data-integrity record. The full RiskIndex assessment — Q1–Q5 compliance, dimensional / FATO analysis, an underwriting-grade risk score, peer benchmark, and a sealed Site Intelligence Report — is available on request.