The rest are in a hangar on his ranch, in Encinal, 110 miles away.
Lewis keeps half his 27 planes in a 20, 000-square-foot hangar a two-minute walk from the office.
The original hangar is now used for maintenance, superseded by a new air-conditioned 22, 000-square-foot display hangar.
"Life as a student is enjoyable, " he muses, during a rare interview at Hangar-7.
The hangar is accessed through opening hatches on the deck and an hydraulic lift.
In a huge hangar, built less than 10 years ago, about 30 planes are parked up.
Hangar 2 is the home of the Israeli Choreographers Association, a new dance venue for workshops and recitals.
Not everyone likes to shop in an aircraft hangar and buy enough to feed the 5, 000.
This meant 18 road bridges - including the Hangar Lane gyratory- would have to have been knocked down.
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And volunteers were busy in a corner of the hangar, making phone calls to get out the vote.
It will be moved to Launch Pad A this month after Atlantis is moved back to its hangar.
The futuristic entrance shares the limelight with a helicopter hangar that can be compared to the Batmobile's garage.
The company has recently filed for planning permission to build a huge hangar at Lelystad in the Netherlands.
The evening had been gradually turning into a party in this rather cold aircraft hangar of a hall.
Modifying planes, researching new planes, buying planes, repairing planes, and forming groups is all handled in the hangar area.
It is not that Rutan wants to turn the craft into a "hangar queen" - at least not yet.
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First the shuttle will spend weeks in an airport hangar before floating down the Hudson River on a barge.
He emerged today to address reporters inside a helicopter hangar near his ranch.
The funeral was being held outside a hangar in Coppito, a town adjacent to the earthquake's epicenter of L'Aquila.
Its last maintenance check in the hangar took place on 16 April 2009.
The beam will be aimed at a collector on the other side of the hangar, rather than several kilometres away.
The plane will be built in California at the Mojave Air and Space Port in a new Stratolaunch hangar currently under construction.
Some of the press may be wondering why we are announcing offshore drilling in a hangar at Andrews Air Force Base.
The aviation firm is the second largest business ratepayer in the district and occupies the 18-acre Diamond Hangar at Stansted Airport.
Geeks, musicians and artists pack the hangar-like ballroom for the highlight of the show, Jobs' speech, and cheer his every word.
Then there is Hangar-7, an eye-popping structure of glass and steel that Mateschitz erected next to the airport in Salzburg, Austria.
During a recent visit to Associated's hangar, workers were swarming two identical Airbus A320 corporate jets destined for a Chinese oil company.
The show, presented by Johnny Vaughan, built a full-scale replica of a Russian space training camp in a disused hangar near Ipswich.
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Now, however, the AAIB needs the space and is refurbishing the hangar.
Only a year later, in an airplane hangar in San Diego, California.
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