CRB Swiss Research Centre for Rationalization in Building and Civil Engineering

Steinstrasse 21
8036 Zurich

+41 44-456-45-45  



  • Max Germann (President)
  • Thomas Pareth – CEO


The Swiss Research Centre for Rationalization in Building and Civil Engineering CRB has served the industry for over 55 years. CRB’s fields of activity includes the development, deployment and distribution of standards and tools for the production of Bills of Quantities, for an efficient and transparent management of construction costs and strive to increase competitiveness and better understanding between developers, planners, contractors and suppliers.

All products of CRB are published in German, French and Italian and they are provided as electronic data or print media. Each language includes more than 35,000 defined construction terms and about 1 million standard building descriptions.

CRB was established in 1959 by BSA (Federation of Swiss Architects). Further supporting bodies – SIA (Swiss Society of Engineers and Architects) and SBV (Swiss Contractors’ Association) – soon joined. Today CRB has got about 5'000 members throughout Switzerland and works together with important public and private builders and many partner organisations of the Swiss construction industry.

Detailed information about CRB, its products and services can be found under


For the construction industry in Switzerland the CRB standards are reliable and consistent tools for the entire building lifecycle – from planning through to implementation and management.

  • The Catalogue of Standard Descriptions NPK is the main product. It is used for the systematic development of clear and precise descriptions of work and materials in construction. It also functions as a check list during the production of Bills of Quantities and it is linked to the cost planning and cost control activities.
  • With the product entries PRD, planners, builders and entrepreneurs can reference available products related to the specific NPK description. With free access to the PRD platform on the Internet they can view the relevant product and manufacturer information.
  • Cost plans can be produced in accordance with the Elemental Cost Analysis Building eBKP-H and the Elemental Cost Analysis Civil Engineering eBKP T through the use of building elements. This increases the efficiency in cost planning, quickly showing the items for which the costs are highest and where a potential for optimization lays. The cost plans contain common definitions for terms, costs and reference variables.
  • The Element Catalogue EAK is a collection building elements constructed using the NPK in accordance with the eBKP. The element types are described with the cost-determining positions from the NPK including reference quantities.
  • The Building Types Catalogue OAK contains a collection of Swiss residential properties with cost data and parameters based on the eBKP-H and rich illustrations for the individual objects. Information and documentation regarding the areas, volumes, use, building systems and the energy concept of the objects are included.
  • Over the last 15 years, various ancillary tools have been developed to cater for building maintenance/refurbishment applications like ProLeMo, process/plan of work model for facility management and pbFM, which means Facility Management that is already part of the planning.
  • Since 1981 CRB distributes the Natural Colour System NCS exclusively in Switzerland. The NCS colour system is based on the human colour perception – regardless of products, materials or manufacturing processes. NCS describes the appearance of colours and colour relationships in such a way as to make them clearly visible. To its users include foremost architects, painters, designer, colour and product manufacturers, institutional building owners and trainers in schools and businesses.
  • Under the motto «small investment, big profits with a sustainable impact» CRB has developed a comprehensive training program. It is suitable at every level and provides the appropriate training materials to the CRB standards. The training is divided into three levels: basic, practical and extras. Additionally various workshops and half-day crash courses are made available.

Active ICIS Members

  • Nicolas Graf
  • Thomas Pareth
  • Albert Muller
  • Jean-Claude Nussbaumer