Owner self-reported — never independently field-inspected
Location confidence
⚠ Location-suspect — recorded coordinates may be mislocated
Terrain cross-check (USGS 3DEP)
FAA 156 ft MSL · USGS ground 19 ft · Δ 137 ft
Differential consistent with an elevated / rooftop pad
Structure cross-check (Overture / OSM)
Ground-level — no building footprint at the coordinate
Cross-source consensus
⚠ Sources conflict — FAA elevation sits above terrain, but no building is at the coordinate
Either a freestanding / tower pad or a mislocated coordinate — independent verification recommended.
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 46 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
54 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
Clear — no obstructions within 0.5 nm on the FAA obstacle file
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.
NFPA 418 adoption status not yet assessed for this jurisdiction.
FAA facility data
FAA LID
18CN
AIX ID
aix:hp:454E3QAP
Lat / Lng
37.76577, -122.39036
Elevation
156 ft MSL
Pad dimensions
54 × 54 ft
Surface type
MATS
Surface condition
EXCELLENT
Activation date
2014/10
Last owner update
2022/08/05
FAA OEAAA airspace determinations2
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2011-03-30
NRAARCH-DeterminedASN 2011-AWP-485-NRA2011-06-01
Heliport · 140 ft AGL — Re-Application. See Airspace Case 2008-AWP-722-NRA current determination expiring June 11 2011. Construction of concrete rooftop Heliport. FATO is 98'x98' and TLOF is 54'x54'. Ingress: 072 162 252. Engress: 072 252 342.
NRAARCH-DeterminedASN 2008-AWP-722-NRA2008-12-11
Heliport · 140 ft AGL — Establishment of rooftop concrete heliport
Blueprint
The record vs. what we measured
60/100
DATA INTEGRITY
eVTOL footprint
The 54 ft pad is 46 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation156 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions54 ft side (filed)54 ft side · measured
Coordinate integrityas filed⚠ location-suspect
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.
UCSF MEDICAL CENTER AT MISSION BAY, SAN FRANCISCO, CA (FAA 18CN). AirIndex facility record aix:hp:454E3QAP. Verifiable at https://www.airindex.io/verify/aix:hp:454E3QAP.