CHESTNUT HOTEL AND CONDOMINIUMS

KNOT THEORY // Mathematics describes a knot as an embedding of a circle in 3-dimensional Euclidean space, R3, considered up to continuous deformations (isotopies). This is basically equivalent to a conventional knot with the ends of the string joined together to prevent it from becoming undone. The study of such objects forms a branch of mathematics called knot theory. The simplest knot, called the word, the unknot is not “knotted” at all. 

The tower is sited prominently in a dense commercial district of Center City Philadelphia. The unique form of the Unknot Tower is generated from a specific zoning study of the site. By de-coding the zoning envelope we found an interesting possibility to build the full zoning envelop which, by intertwining the form, resulted in creating a crystalline void inside, around which spaces are organized.

The three related programmatic environments: hotel, retail, and residential are creating programmatic overlaps, sharing services, lifestyle amenities and open outdoor spaces to be used by both the hotel and the condominiums. Two distinct outdoor urban spaces are provided for, one at each end of the unknotted loop: a ground level entry plaza at the north side, and a cantilevering pool volume at the south façade. The Crystalline Void inside the knot connects all and contains an outdoor Terrace and Roof Garden, looking out over the private pool shimmering below.

The building contains a hotel of 145 keys, a 8000 sf restaurant [Atelier Robuchon, Paris], a 16,000 sf Spa [Espa London], and a library by Assouline. There are also 29 high-end condominiums and 59,000 sf of valet parking under the building.

INFO

Client: 

Building: CREI Real Estate

Restaurant: Joẽl Robuchon, Paris

Spa: Espa, London

Library: Assouline

Project Type: 5 Star Hotel & Condominiums 

Location: Philadelphia, PA

Area: 300,000 sf // 27,870 m2

Status: Construction Drawing Phase

Design: Archi-Tectonics

Principal in charge: Winka Dubbeldam

Project Leader:  Brian Holland

Architect of Record: JK Roller Architect

Archi-Tectonics Team: Patrick Wong, Jordan Trachtenberg, Liz Piller, Stephanie Herberstein, Alexandra Joseph, David Barr

Consultants:

Structural Engineers: Thornton Tomasetti Engineers

Mechanical Engineer: Edwards & Zuck Engineers

Curtain Wall Consultant: Israel Burger


SHARE twitter. facebook. tumblr. email.
facebook tumblr twitter email
Close Press Archive
2013_Hotel Conversion, Glassy 8-Story Addition For 17 John Street-
17 John Street - A TOWER IN LOWER MANHATTAN
Residential
New York, United States
2014 Chelsea Townhouse in New York Magazine-
Chelsea Townhouse
Residential
New York, United States
2013 TREND MAGAZINE-
A Bottom-up Downtown Bogota
Commercial
Colombia
2013_ARCHITECTURAL RECORD-
A Bottom-up Downtown Bogota
Commercial
Colombia
2013_Inspiring Interiors-
BREWSTER CARRIAGE HOUSE - Mixed Use
Residential
New York, United States
2013_WIRED Article-
Multiple Projects
Exhibition
2013_Germany's "Brigitte Magazine" features Winka-
V33
Residential
New York, United States
2013_Contemporist Features Schein Loft-
SCHEIN LOFT
Residential
New York, United States
2013_Legend Trades Bowery For Nolita-
BREWSTER CARRIAGE HOUSE - Mixed Use
Residential
New York, United States
2013_John Legend Moves Into Brewster-
BREWSTER CARRIAGE HOUSE - Mixed Use
Residential
New York, United States
2012_Residences Decoration Features Tribeca Loft-
HUBERT STREET MIXED-USE TOWNHOUSE, TRIBECA, NY
Residential
New York, United States
2012_Pink Jalk Project-
PRO-BONO WORK
Commercial
2012_V33 Building Featured In Revista Exclama-
V33
Residential
New York, United States
2012_Dwell- Moments with Winka-
V33
Residential
New York, United States
2012_Entre muros-
Multiple Projects
Exhibition
2012_Mark-
HOLON: THEATRE+TOWER+HOUSING
Commercial
Israel
2012_Schein Loft by Archi-Tectonics-
SCHEIN LOFT
Residential
New York, United States
2012_Futuristic-
NYC 2106 - A SYSTEMATIC APPROACH
Exhibition
New York, United States
2011_Tashan by Winka Dubbeldam and Archi-Tectonics-
TASHAN
Commercial
United States
2011_Pulsation in Architecture-
SMART ECOLOGY
Commercial
Brussels, Belgium
2011_Performalism-
BRUSSELS TOWNHOUSE
Residential
Brussels, Belgium
2011_Perspective-
TASHAN
Commercial
United States
2011_HP DE TIJD-
V33
Residential
New York, United States
2011_Amber-
Siki Im Pavillion, Arnhem Mode Bienale 2011
Exhibition
Netherlands
2011_Interior Design-
PORTS 1961, ON THE BUND, SHANGHAI
Commercial
Shanghai, China
2011_Design Futures-
Gypsy Trail Residence
Residential
New York, United States
2011_H.O.M.E.-
V33
Residential
New York, United States
2011_Eco Life-
PORTS 1961, ON THE BUND, SHANGHAI
Commercial
Shanghai, China
2011_ARCHI-TECTONICS, a Monograph-
Multiple Projects
Exhibition
2009_Surface-
PRO-BONO WORK
Commercial
2009_Design book-
SMART ECOLOGY
Commercial
Brussels, Belgium
2009_The Luxury City Apartment-
497 Greenwich Building
Residential
New York, United States
2009_Ars Hypermedia-
V33
Residential
New York, United States
2009_American Loft Building-
AMERICAN LOFT , residential tower
Residential
Pennsylvania, United States
2008_The plan-
CHESTNUT HOTEL AND CONDOMINIUMS
Commercial
United States
2008_Performalism-
Q TOWER
Residential
Pennsylvania, United States
2008_Design-
Q TOWER
Residential
Pennsylvania, United States
2008_The New York 2030 -
NYC 2106 - A SYSTEMATIC APPROACH
Exhibition
New York, United States
2008_Interni-
SCHEIN LOFT
Residential
New York, United States
2008_a+a-
Flex City, NYC 1991 - 2012
Exhibition
United States
2008_Men's vogue-
CHESTNUT HOTEL AND CONDOMINIUMS
Commercial
United States
2007_Mark-
497 Greenwich Building
Residential
New York, United States
2007_Concept-
DRENTS MUSEUM
Commercial
Netherlands
2007_a+u-
CHESTNUT HOTEL AND CONDOMINIUMS
Commercial
United States
2007_World Architecture-
Gypsy Trail Residence
Residential
New York, United States
2007_New York Living-
497 Greenwich Building
Residential
New York, United States
2007_Modern Architecture-
497 Greenwich Building
Residential
New York, United States
2007_Change-
CHESTNUT HOTEL AND CONDOMINIUMS
Commercial
United States
2007_Domus-
Q TOWER
Residential
Pennsylvania, United States
2007_Skin and Bones-
497 Greenwich Building
Residential
New York, United States
2007_Winka Dubbeldam in Manhattan-
497 Greenwich Building
Residential
New York, United States
2007_Interview with Winka Dubbeldam-
CHESTNUT HOTEL AND CONDOMINIUMS
Commercial
United States
2007_Moca-
497 Greenwich Building
Residential
New York, United States
2007_Metropolis-
497 Greenwich Building
Residential
New York, United States
2006_P.A.N-
497 Greenwich Building
Residential
New York, United States
2006_Attici-
497 Greenwich Building
Residential
New York, United States
2006_Metamorfos-
497 Greenwich Building
Residential
New York, United States
2006_Architectural record-
SCHEIN LOFT
Residential
New York, United States
2006_Arx-
497 Greenwich Building
Residential
New York, United States
2006_At-INdex,a Monograph-
Multiple Projects
Exhibition
2006_Ultimate New York Design-
497 Greenwich Building
Residential
New York, United States
2005_Surface-
497 Greenwich Building
Residential
New York, United States
2005_Metropolis-
INFLECTION TW751 - IVALO
Exhibition
2005_To the trade-
497 Greenwich Building
Residential
New York, United States
2005_House-
Gypsy Trail Residence
Residential
New York, United States
2005_Sketch.Plan.Build-
Soundscapes
Exhibition
2005_ARX-
497 Greenwich Building
Residential
New York, United States
2004_Next Generation Architecture-
497 Greenwich Building
Residential
New York, United States
2004_Architecture now-
497 Greenwich Building
Residential
New York, United States
2004_Esquire-
V33
Residential
New York, United States
2004_497 Greenwich Building-
497 Greenwich Building
Residential
New York, United States
2004_Architectural Record-
497 Greenwich Building
Residential
New York, United States
2004_Monument-
Gypsy Trail Residence
Residential
New York, United States
2004_Construction -
Soundscapes
Exhibition
2003_Surface-
Gypsy Trail Residence
Residential
New York, United States
2003_a+u-
497 Greenwich Building
Residential
New York, United States
2003_Spazio-
Hardware to Softform
Exhibition
New York, United States
2002_A New world trade center-
Flex City, NYC 1991 - 2012
Exhibition
United States
2002_Contemporary Techniques in Architecture-
AIDA Salon
Commercial
2001_Disappearing Architecture-
Hardware to Softform
Exhibition
New York, United States
2001_ New York Times - A Pair of Crystal Gems Right for Their Setting-
497 Greenwich Building
Residential
New York, United States
1996_Winka Dubbeldam Architect, a Monograph-
Multiple Projects
Exhibition