Izquierdo Lehmann has designed Cruz del Sur Building in Santiago, Chile which is 43,129 sqm project areas on 3,987 sqm site area. The project consists of an office tower with a commercial complex in the base, located at the intersection of Apoquindo Av, main axis of Santiago, and Americo Vespucio Av, the capital’s circular beltway. This mixed-use building has fulfilled the government regulation that allowed to raise towers up to 21 floors, with a buildable area of 18,738 m2 (cornering was necessary, considering the impact of land value in market selling price), with square shaped plants averaging approximately 1,000 m2 each, and a vertical circulation core containing a battery of eight elevators plus two enclosed double stairwells and services, occupying an area of approximately 15 x 15mts. This office building is the result of integration between the consideration of mass, gravity and weight with the perspective condition of perceived space.
[via]
The Building Design of Centre dExamen du Permis in France by Samuel Delmas Architectes
The Kimber Modern Hotel Design in Texas
The Building Design of EDP Foundation Cultural Centre in Lisbon by AL_A
The Special Mention Awards of High Rise Building Design Competition 
The Auditorium Building Design in Astana Kazakhstan
The Building Design of Sky is the Limit in South Korea by Didier Faustino
Mixed Use Building in Naples Italy by Renzo Piano
The Leadenhall Building Design in London by Rogers Stirk Harbour and Partners
The Office Building Design of Vitus Bering Innovation Park in Denmark
The Las Vegas City Center
La Llotja de Lleida, the Hall Building by Mecanoo
The Luxury Alila Villas Hadahaa in the Maldives
RATP Formation Centre, the Ship-Like Building Outside Paris by Stephane Maupin and Nicolas Hugon
The Building Design of Ruy Barbosa Labor Courthouse
The Building Design of GR230 in Nothern Japan by Code
The Building Design of the King Abdul Aziz Knowledge and Cultural Center
The Building Design of German Pavilion in Shanghai Expo 2010
The Building Design of Formosa 1140 in California
The Building Design of Hepworth Wakefield Gallery by David Chipperfield Architects
The Building Design of 486 Mina El Hosn
The Building Extension of a Residential Building
Steckelhörn 11 Building in Hamburg Designed by J. Mayer H.
Huaxi Urban Center Tower Design
The Building Design of Creative and Vibrant Fine Arts Center by Kell Munoz Architects
Five Best Design of the Buildings With a Unique Shape on Duldule