Single pilot reported an uneventful forced landing at parking lot due to fuel starvation.

Attributes
ACN	1738805
Time
Date	202003
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Light Sport Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	VFR
Person 1
Function	Single Pilot
Qualification	Flight Crew Instrument Flight Crew Glider Flight Crew Flight Instructor Flight Crew Flight Engineer Flight Crew Multiengine Flight Crew Sea Flight Crew Rotorcraft
Experience	Flight Crew Last 90 Days 75 Flight Crew Total 6125 Flight Crew Type 25
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Inflight Event / Encounter Fuel Issue

Narrative:

Aircraft departed ZZZ approximately xa:16. Departure flight following to practice area. Pre-flight and briefing completed. Normal departure. Xa:28 annunciator indicated 2.5 gallons of fuel remaining. Immediately proceeded direct to ZZZ; with continued precipitous drop of fuel level. Engine quit at approximately 2000 ft. [Advised ATC]. Landed in parking lot. No injuries no damage to the plane.examination on landing revealed fuel leaking from the gascolator petcock. Prior to flight noticed that aircraft partner had drained 5 gallons of fuel from the freshly filled 16 gallon tank to calibrate it. The plane has a slide carburetor; and when the fuel is turned on it drips on the ground. The fuel was checked pre-flight but the petcock position was not visually checked. Aircraft had 11 gallons on board on take off.on landing spoke with partner and he said he did not close the petcock (drain valve) after draining the tank. From the cockpit it is not possible to visualize fuel leaking out.

Original NASA ASRS Text

Title: Single Pilot reported an uneventful forced landing at parking lot due to fuel starvation.

Narrative: Aircraft departed ZZZ approximately XA:16. Departure flight following to practice area. Pre-flight and briefing completed. Normal departure. XA:28 Annunciator indicated 2.5 gallons of fuel remaining. Immediately proceeded direct to ZZZ; with continued precipitous drop of fuel level. Engine quit at approximately 2000 ft. [Advised ATC]. Landed in parking lot. No injuries no damage to the plane.Examination on landing revealed fuel leaking from the gascolator petcock. Prior to flight noticed that aircraft partner had drained 5 gallons of fuel from the freshly filled 16 gallon tank to calibrate it. The plane has a slide carburetor; and when the fuel is turned on it drips on the ground. The fuel was checked pre-flight but the petcock position was not visually checked. Aircraft had 11 gallons on board on take off.On landing spoke with partner and he said he did not close the petcock (drain valve) after draining the tank. From the cockpit it is not possible to visualize fuel leaking out.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.