XTEN Architecture is an award-winning architecture firm located in Los Angeles, California, with associate offices near Basel, Switzerland. Founded in 2000 by partners Monika Häfelfinger and Austin Kelly, XTEN Architecture is a full service architecture and design firm specializing in cultural buildings, office and commercial facilities, large-scale residential projects and custom single family residences. Buildings are developed using the most innovative green technologies and materials available and guided efficiently from design through construction.

XTEN has developed a distinctive method to the development of contemporary architecture, with an emphasis on minimalist logic, material transformation and refined detailing and craftsmanship. Underlying themes in the work have focused on the conceptual use of building materials, modified with both traditional and digital techniques. In new buildings, landscapes and urban plans, the architects develop strong sculptural forms and spaces transformed by both direct and indirect connections to nature and the buildings' immediate environment.

XTEN Architecture has been awarded the International Architecture Award from the Chicago Athenaeum and European Centre for Architecture, the IV Miami+Design Bienal Architecture Award, Honor and Merit Awards from the American Institute of Architects, and the firm's work was featured in the grand re-opening exhibit at the Architecture+Design Museum in Los Angeles. XTEN has been recognized by Architectural Record and California Home+Design as one of the architecture firms to watch nationally. The work of XTEN Architecture has been published extensively, appearing on the cover of Architectural Digest, Architektur and Wohnen, Interior Design Space, Belle, REM and Prestige Design, and in Architectural Record, Wallpaper, Interior Design, LA Architect, The Los Angeles Times Magazine, Angeleno, Elle Décor UK, AD Mexico, Interni/ Russia, Spa-De/ Japan, Architecture & Detail/ China, Interiors/ South Korea, Disenart/ Spain, Deutsche Bauzeitung/ Germany, Concept/ South Korea, Residence/ Sweden, Villa/ Czechoslokia and the Architect's Newspaper, in addition to numerous architectural design books.

Buildings in design and construction include single-family residences, residential estates, commercial projects and competitions in the United States, Switzerland, Asia and the Middle East.

2009 International Architecture Award, Openhouse, Chicago Athenaeum/ European Centre for Art and Architecture

2007 IV Bienal Architecture Award, Openhouse, Bienal Miami + Beach

2007 AIA/LA Design Award, Openhouse, American Institute of Architects

2007 Ten to Watch, California Home+Design Magazine

2006 AIA/NextLA Design Award, Diamondhouse, American Institute of Architects

2006 New Architecture LA Exhibit, A+D Architecture and Design Museum

2005 House of the Month, Vhouse, Architectural Record

2004 Emerging Architect, Architectural Record

2010 Bel Air Estate, Bel Air, California

2010 Oman Estate, Muscat, Oman

2010 Doheny Residence, Beverly Hills, California

2010 Brentwood Residence, Brentwood, California

2009 Summit Drive Residence, Beverly Hills, California

2009 Za'abeel Park Observation Tower, Dubai, United Arab Emirates

2009 COOP Zentrum, Sissach, Switzerland

2009 Madison Club Residence, Palm Springs, California

2008 Sapphire Gallery, Encino, California

2008 Diamondhouse, Santa Monica Canyon, California

2008 Casa Blanca, Hollywood Hills, California

2008 Macapa Residence, Hollywood Hills, California

2007 Openhouse, Hollywood Hills, California

2007 Himmelrain Park Condominiums, Sissach, Switzerland

2007 Surfhouse, Hermosa Beach, California

2006 FordChing Showroom, Chinatown, Los Angeles, California

2006 Silverspur Office Building, Palos Verdes Peninsula, California

2006 Canyon House, Beverly Hills, California

2005 Schoenberg Park Condominiums, Bern, Switzerland

2004 Mhouse/ Art Studio, Venice Beach, California

2004 Haupstrasse 61/63, Sissach, Switzerland

2003 Vista Haven Residence, Sherman Oaks, California

2002 Seepark Bahnhof SBB Master Plan, Liestal, Switzerland

2002 Vhouse, Sherman Oaks, California

2010
a5 Los Angeles Germany | Oro Publishing | Sapphire Gallery, Diamondhouse, Openhouse, Silverspur, Dubai ZPO
Architecture Zone China | Rihan.CC Press | Himmelrain
Deutsche Bautzeitung Germany | May | Diamondhouse
Elle DÉCOR Italia | May | XTEN Feature
id+c China | May | Openhouse
Inside Outside China | May | Openhouse
Home Review India |April | Sapphire Gallery
SPACE South Korea | April | Sapphire Gallery
H.O.M.E. Germany | March | Openhouse
AR Plus UK | March | Diamondhouse
Archdaily Chile | February | Diamondhouse
Interior Design United States | February | Sapphire Gallery
Villa Journal Czech Republic | January | Openhouse
Miami Herald United States | January | Openhouse

2009
The Art Of Living USA | Monacelli Press | Openhouse
Architecture Highlights China | Shanglin A & C Publishers | Openhouse
Collection: US Architecture United States | Braun | Surfhouse, Openhouse
100 Ideas China | Rihan.CC Press | Sapphire Gallery, Diamondhouse
Living West United States | The Monacelli Press | Surfhouse
MOCA Contemporaries United States | December | Sapphire Gallery
REM Spain | December | Openhouse
IDS Malaysia | December | Openhouse
Design.Architecture.Style. Republic of Maldova | November | Sapphire Gallery
Options United States | November | Openhouse
Peruarki Spain | November | Surfhouse
Royal Report Czech Republic | November | Openhouse, Sapphire Gallery, Surfhouse
Wallpaper* UK | November | Diamondhouse
Casamica Italy | October | Dubai ZPO Tower
DECO Magazine China | October | Openhouse, Sapphire Gallery
IQD Magazine Italy | October | Sapphire Gallery
Spazio Casa Italy | October | Dubai ZPO
Appledaily Newspaper China | September | XTEN Feature
Hochparterre Germany | September | Openhouse
Homes Magazine Germany | September | Openhouse
In/Out China | September | Sapphire Gallery, Openhouse
MStyle China | September | Sapphire Gallery
Villa Journal Czech Republic | September | Openhouse
Hearth & Home United States | October | Openhouse
Beyond Magazine China | August | Dubai ZPO
CAN China | August | Openhouse
Architecture & Culture South Korea | July | Sapphire Gallery
Arquitectura & Construção Portugal | July | Sapphire Gallery
Binyan VeDiur Israel | July | Sapphire Gallery
Concept South Korea | July | Sapphire Gallery
Hearth & Home United States | July | Openhouse
Inzynier Budownictwa Poland | July | Sapphire Gallery
Le Grand Mag Spain | July | Openhouse
VISIONS Italy | July | XTEN Feature
SPACE Magazine South Korea | July | Dubai ZPO Tower
AtCasa Italy | June | Openhouse, Vhouse, FordBrady, Mhouse
Elle Decoration China | June | Sapphire Gallery, Diamondhouse
First Look Magazine Lebanon | June | Diamondhouse
Home Review India | June | Openhouse
Metal Mag United States | June | Mhouse, Dubai ZPO Tower, Diamondhouse, Macapa Residence, Sapphire Gallery
Archistorm France | May | Sapphire Gallery
Architect's Newspaper USA | May | Openhouse
bob Magazine South Korea | May | Diamondhouse, Surfhouse, Openhouse, Silverspur
Casamica Italy | May | Sapphire Gallery
Codigo 06140 Mexico | May | Sapphire Gallery
DELUXE Greece | May | Openhouse
Peruarki Spain | May | Openhouse
TakeOff France | May | Openhouse
AD France |April | Openhouse
DNA11 United States | March - April | Surfhouse
Casaresart Italy | April | Openhouse
DentroCasa Italy | April | Openhouse, Surfhouse
HISE Slovenia | April | Surfhouse
Oikos & Design Greece | April | Openhouse
Postopolis! LA United States | April | XTEN Feature
TIMES SPACE South Korea | April | FordBrady
Arquitectura21 Portugal | March | Sapphire Gallery
Elle DECOR Italia | March | Sapphire Gallery
DolceVita* Italy | March | Openhouse
Forum AID Sweden | March | Sapphire Gallery
Prestige Design Germany | March | Openhouse

2008
100x400 China | Rihan.CC Press | Silverspur, Openhouse
Architecture and Design: Los Angeles Germany | DAAB | Silverspur
Architecture Highlights China | Shanglin A&C Ltd. | Openhouse
Contemporary House Design Spain | Loft Publishing | FordBrady
Cozy Wood Interiors France | LInks Publishing | VHouse
House Design Source Spain | Loft Publishing | Openhouse
Inside Out Spain | Fusion Publishing | Openhouse
Architektur & Wohnen Germany | August | Openhouse
Architecture & Details China | August | Sapphire Gallery
Monthly Interiors South Korea | August | Mhouse
Times Space China | August | FordBrady
Belle Australia | June-July Cover | Openhouse
Peruarki Peru | April | Openhouse
The Home Bulgaria | June | Openhouse
Contemporary Ecological Architecture Germany | Fusion Pub. | Silverspur
SPA-DE 9 Tokyo | May | FordBrady
Residence Sweden | May | Openhouse
Interni & Decor South Korea | May | Openhouse & FordBrady
1000 Interiors China | May | Liaoning Sci & Tech Publishing | FordBrady
Mezzanine Russia | May | Openhouse
The Home Bulgaria | May | Mhouse
Elle Decor UK | May | Openhouse
Residential Architect United States | April | Diamondhouse
Traco Portugal | April | Openhouse
Desenart Spain | April | Openhouse
Interni Russia | April | Openhouse
FORM United States | February | Himmelrain Park
AD Mexico | February | Openhouse
Bauen + Wirtschaft Switzerland | W & V mbH | Himmelrain Park

2007
1000 x Americas Architecture Germany | Fusion Publishing | Silverspur
Arquitectura Mineral Spain | Parramon Publishing | Diamondhouse
Ecological Houses Spain | TeNeues Publishing Group | Mhouse
Architectural Digest United States | December Cover | Openhouse
Beautiful Houses Russia | December | Vhouse
California Home+Design United States | October | XTEN
World Architecture News UK | September | Openhouse
FORM United States | September | Openhouse
Blackbook United States | August | Mhouse
Interior Design United States | July | FordBrady
Los Angeles Times United States | June | Openhouse

2006
Architecture+Design Museum United States | Young Architects Exhibition | XTEN
Deutsche Bauzeitung Germany | November | Diamondhouse
Los Angeles Times West Magazine United States | October | FordBrady
Fabric Architecture United States | September/October | Silverspur
LA Architect United States | October | Diamondhouse

2005
Today's Country Houses Spain | Links International Publishing | Vhouse
Interior Design United States | August | Mhouse
Architectural Record United States | May | Vhouse

2004
House Design Spain | DAAB Publishers | Vhouse
Angeleno United States | October | Mhouse
Architectural Record United States | August | XTEN Feature
Angeleno United States | March | Vhouse
Riviera United States | March | Vhouse
CasaD Italy | Gennaio-Febbraio | Vhouse
ARCH Slovenia | January | Himmelrain Park