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A home forinnovation
The HP Garage—the Birthplace of Silicon Valley
367 Addison Avenue, Palo Alto, California

HP Corporate Archives

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A home for innovation
Tucked away on a quiet, tree-lined residential street near
Stanford University, the HP Garage stands today as theenduring symbol of innovation and the entrepreneurial
spirit. It was in this humble 12x18-foot building that college
friends Bill Hewlett and Dave Packard first pursued thedream of a company of their own. Guided by anunwavering desire to develop innovative and usefulproducts, the two men went on to blaze a trail at theforefront of the electronics revolution.

The history of the HP Garage
The HP Garage in 1939 (top) andrestored in 2005 (bottom).

The garage stands behind a two-story Shingle
Style home built for Dr. John C. Spencer about
1905. The exact construction date of the garage
is unknown, but while there is no evidence of its
presence on insurance maps dated 1908, by 1924
it is clearly denoted on updated documents as a
private garage.
In 1938, Bill Hewlett and Dave Packard decided to“make a run for it” in business. Dave left his job
at General Electric in Schenectady, New York, andreturned to Palo Alto while Bill scouted rentals.
He found one perfect for their needs on Addison
Avenue. Chosen specifically because of a garage
he and Dave could use as their workshop, theproperty also offered a three-room, groundfloor flat for Dave and his new wife Lucile and an
8x18-foot shed for Bill. They shared the $45 permonth rent.
The garage served as research lab, development
workshop, and manufacturing facility for early
products, including the Model 200A audio
oscillator. The company, founded in 1939, wasnamed with a coin toss. The garage was soon
outgrown, and in 1940 HP moved into larger
quarters nearby on Page Mill Road.

2The garage was dedicated as the Birthplaceof Silicon Valley in 1989, and HP acquired theproperty in 2000. HP is proud to have worked
closely with the City of Palo Alto to return thehouse, garage, and shed to conditions muchas they were in 1939. The heritage project wascompleted in 2005. In 2007, the property waslisted on the National Register of Historic Places.
While the HP Garage is not open for public tours,individual visitors and small groups may viewand photograph the property and landmark fromthe sidewalk. Addison Avenue remains a quiet
residential neighborhood, so if you decide to visit,
please respect the privacy of our neighbors.

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Garage timelinec.1905
House at 367 (then numbered369) Addison Ave. is built for
Dr. John Spencer, a physician
and early mayor of Palo Alto.

1919–1920
The house is divided into twoapartments numbered 367and 369.

1924
The 12x18-foot garage
first appears on Sanborn
Insurance maps of Palo Alto.

1934
Bill Hewlett and Dave
Packard graduate from
Stanford University.

1935Dave moves to Schenectady,
New York, to work for
General Electric. Bill remains
at Stanford to prepare forgraduate work at MIT.

1936
Bill completes grad work at
MIT and returns to Palo Alto.

1937
Dave visits Bill in Palo Alto;they have their first official
business meeting.

1938
Dave takes a leave ofabsence from GE and moves
back to Palo Alto with his
new wife, Lucile. The Addison
Avenue rental is specificallychosen because it has agarage. Dave and Lucile

move into the three-roomapartment on the first floor(#367) and Bill moves into
the shed in the back. The
landlady, Mrs. Ione Spencer,
lives in the upstairs flat at#369. Bill and Dave begin
part-time work in the garage

with $538 in working capital,
including the value of Dave’s
used Craftsman drill press.
They develop numerous
products, including HP’s firstproduct, the Model 200A
audio oscillator.

1939
January 1, Bill and Daveformalize their partnership.
They decide the company’s
name with a coin toss. AfterBill and Flora’s marriage,
the small shed becomesthe HP business office.

1940
Hewlett-Packard Company
moves to a larger rented
building on Page Mill Road.
Dave and Lucile move to the
Palo Alto neighborhood ofBarron Park.

1985
The garage is designated a
City of Palo Alto landmark.

1987
The garage becomes
California HistoricalLandmark No. 976.

2000
HP acquires the Addison
Avenue property.

2005
HP restores the garage,
house, and shed at
367 Addison Ave.

2007
The property is listed on
the National Register ofHistoric Places.

Dave (left) and Bill in thegarage workshop.

1989
Dedication ceremonies areheld for the “Birthplace ofSilicon Valley.”

Bill (left) and Dave at thegarage dedication.

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For more information about the HP Garage, visit:
hp.com/go/garage

Dave (left) and Bill at the 1989 dedication of the garage as California Landmark No. 976, theBirthplace of Silicon Valley.

© Copyright 2010, 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties
for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as
constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
4AA1-8320ENA, December 2012, Rev. 1