{{short description|Historic residential building in California, United States}} {{Use American English|date=July 2025}} {{Use mdy dates|date=January 2025}} {{Infobox NRHP | name = Condominium 1 | nrhp_type = | image = Condominium 1, 110-128 Sea Walk Dr., Sea Ranch, CA 7-5-2010 7-07-18 PM.JPG | caption = Condominium 1 | location = 110-128 Sea Walk Dr., The Sea Ranch, California | coordinates = {{coord|38|40|45|N|123|25|40|W|display=inline,title}} | locmapin = California#USA | built = 1965 | architect = Moore, Turnbull, Lyndon, Whitaker | architecture = Third Bay Tradition | added = July 29, 2005 | area = {{convert|3.3|acre}} | refnum = 05000731<ref name="nris">{{NRISref|version=2010a}}</ref> }}

'''Condominium 1''' was the first unit in the Sea Ranch development in Sonoma County, California. Located on a coast overlooking the Pacific Ocean, the complex was designed by Charles W. Moore, Donlyn Lyndon, William Turnbull Jr. and Richard Whitaker of the MLTW partnership in 1963–1964, and was built by contractor Matthew Sylvia in 1965. The timber-framed structure has been described as one of the most significant architectural designs of the 1960s in California,<ref name="nrhpnom1">{{cite web | url={{NRHP url|id=05000731}} | title=National Register of Historic Places Registration Form: Condominium 1 | publisher=National Park Service | date=December 15, 2004 | access-date=May 6, 2012 | author=Carlson, Pamela Joan}}</ref> and has received numerous awards.

==Description== Condominium 1 is located on the edge of a cliff overlooking the Pacific. It is a complex of ten condominium units, intended to be seen as a single structure. The design was inspired by barns and other farm buildings in the region and, with the help of landscape architect Lawrence Halprin, was built to take into account the local ecology.<ref name=Shap>{{cite book | last =Wiseman | first =Carter | title =Shaping a nation: twentieth-century American architecture and its makers | publisher =W. W. Norton & Company | year =1998 | pages =[https://archive.org/details/shapingnationtwe00wise/page/278 278–279] | isbn =0-393-04564-1 | url-access =registration | url =https://archive.org/details/shapingnationtwe00wise/page/278 }}</ref> The timber frame is clad in vertical redwood siding,<ref name="Lange">{{cite web|last1=Lange|first1=Alexandra|title=Why Charles Moore (Still) Matters|url=http://www.metropolismag.com/architecture/why-charles-moore-still-matters/|website=Metropolis|access-date=3 September 2017|date=20 May 2014}}</ref> with vertical forms resembling mine structures anchoring a series of sloping roofs that descend toward the ocean, perforated by skylights. Windows are plain openings without trim or mullions. There are no eaves or significant fascia trim. On the uphill side the building wraps around a courtyard that houses the units' garages. Interior spaces feature the full range of MLTW-developed design elements.

The 10-unit structure was Moore's first major work. It exemplifies Moore's "shed style" with single-pitched roofs, board siding, and plain detailing. The style, with its emphasis on a partnership with the site, was a break from the International Style. The design principles established by Condominium 1 included the use of what Moore termed aedicules, small intimate spaces defined by four columns and a canopy, and "saddlebags", small projections of the interior space to the exterior that provide a view or a contemplative space.<ref name="Unwin2010">{{cite book|last=Unwin|first=Simon|title=Twenty Buildings Every Architect Should Understand|url=https://books.google.com/books?id=xbpxST0YncQC&pg=PA164|year=2010|publisher=Routledge|isbn=1-136-95505-4|page=164}}</ref> The units are arranged with horizontal and vertical view lines through the space.<ref name="nrhpnom1"/>

==Reception== The condominium was featured in an extensive public relations campaign to promote the Sea Ranch development. It appeared in ''Newsweek'', ''The New York Times'', and ''Life'', as well as design magazines such as ''Perspecta'' and ''Japan Architect''. It received a design citation from ''Progressive Architect'', a California Governor's Design Award in 1966 and an American Institute of Architects Honor Award in 1967. In 1991 it received the AIA Twenty-five Year Award and Moore was awarded the AIA Gold Medal. The structure was placed on the National Register of Historic Places in 2005.<ref name="nris"/><ref name="nrhpnom1"/>

==See also== {{Portal|San Francisco Bay Area}} *National Register of Historic Places listings in Sonoma County, California *Baker House, also in Sea Ranch and NRHP-listed *Third Bay Tradition *Sonoma County Historic Landmarks and Districts

==References== {{reflist}}

{{National Register of Historic Places}}

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Category:Houses in Sonoma County, California Category:Houses on the National Register of Historic Places in California Category:National Register of Historic Places in Sonoma County, California Category:Houses completed in 1965 Category:Modernist architecture in California