Brick is an open-source effort to standardize semantic descriptions of the physical, logical and virtual assets in buildings and the relationships between them. Brick consists of an extensible dictionary of terms and concepts in and around buildings, a set of relationships for linking and composing concepts together, and a flexible data model permitting seamless integration of Brick with existing tools and databases. Through the use of powerful Semantic Web technology, Brick can describe the broad set of idiosyncratic and custom features, assets and subsystems found across the building stock in a consistent matter.

Adopting Brick as the canonical description of a building enables the following:

Brick is free and open-sourced under the BSD 3-Clause license. The source code for Brick, this website, and related tools developed by the Brick team are available on GitHub.

How Does Brick Compare to X?

Project Haystack is a popular tagging system for describing building assets using semi-structured sets of tags. Because there are no formal rules for how tags can be used, Haystack-based descriptions of buildings tend to consist of ad-hoc collections of tags, resulting in highly custom and inconsistent modeling practices across sites. Brick includes a tagging system similar to Haystack that augments tags with formal semantic rules that promote consistency and interpretability.

Industry Foundation Classes and Building Information Models emerged from the need for a common

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