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ECONOMICAL PLANNING APPROACHES FOR THE COSTS OF CONSTRUCTION AND USE

WHAT DOES “SUSTAINABLE BUILDING” MEAN?

Sustainable building is intelligent building: At its core, a comprehensive quality concept is in the interests of construction and real estate businesses, and of society at large. Sustainable properties are environmentally-friendly and conserve resources, comfortable and healthy for their users, and blend optimally into their sociocultural surroundings.

THE DGNB SYSTEM “GREEN BUILDING CONCEPT”

The aim of the DGNB System (German Sustainable Building Council) and its certifications is to provide objective descriptions and evaluations of the sustainability of buildings and urban areas. It evaluates quality in a comprehensive sense over the whole life cycle.

The certification system goes far beyond  the ecological aspects of “green building”, and takes into account the economic performance of building together with the sociocultural and functional considerations on an equal basis. As a performance-oriented rating system, the DGNB System covers all relevant fields of sustainable building, and awards certificates to outstanding buildings in the categories gold, silver and bronze.

The certificate system is based on the idea of integral planning, which identifies the sustainable building objectives for a project at an early stage.  In this way sustainable buildings are built using today’s state of the art, and the new certification system communicates their quality. The certification system makes sustainability measurable and comparable. 

Ingenieurbüro Liebert has been a member of the DGNB for many years. Our competence with regard to sustainable and ecological planning is evident from successfully certified projects, such as the conception of several office blocks as “zero-energy” buildings, which were awarded “DGNB Gold” and “LEED Platinum”. Several more projects are currently in the certification phase.

LEED - THE AMERICAN AND CANADIAN SUSTAINABILITY CERTIFICATE

The American LEED (= Leadership in Energy and Environmental Design) System for the classification of sustainable buildings was developed in 1998 on the basis of the British BREEAM certification system. Under LEED, buildings are assessed on the basis of points awarded for individual criteria. The sum of the points awarded determines the certification rating of a building. LEED covers all phases of a building’s lifecycle.

Assessment categories: 

  • Sustainable sites
  • Water efficiency
  • Energy and atmosphere
  • Materials and resources
  • Indoor environmental quality
  • Innovation and design process

Under LEED, silver, gold, and platinum certificates are awarded.