extension
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extension
An additional part of a building that is added to an already existing building in order to create more space. A synonym for this is the term annex.
Die Schule bekommt einen Erweiterungsbau für die neuen Klassenräume und die Bibliothek.
The school is getting an extension for the new classrooms and the library.
This word is a compound made up of 'Erweiterung' (extension/expansion) and 'Bau' (building/construction). The linking element '-s-' connects the two parts. Literally, it describes a construction that serves to expand an existing building.
Der geplante Erweiterungsbau wird zwei neue Stockwerke haben.
The planned extension will have two new floors.
Common verbs used in connection with 'Erweiterungsbau' (extension) are 'planen' (to plan), 'bauen' (to build), 'errichten' (to construct), and 'genehmigen' (to approve). These words describe the process from the idea to completion.
Die Firma plant einen Erweiterungsbau für die Produktion.
The company is planning an extension for production.
The term 'Erweiterungsbau' (extension) is used mainly in formal and technical contexts, such as architecture, urban planning, or official announcements and news reports.
In der Zeitung stand, dass das Museum einen Erweiterungsbau bekommt.
The newspaper said that the museum is getting an extension.
expansion / removal
Ausbau and Erweiterungsbau can both create more space in an existing building. Ausbau refers to the process of expanding or improving something and can take place within or on the existing structure. Erweiterungsbau, by contrast, is the newly added part of the building. Use Erweiterungsbau for the specific new structure and Ausbau for the project or process.
Neben der Schule entsteht ein Erweiterungsbau mit zwei zusätzlichen Räumen.
An extension with two additional rooms is being built next to the school.
Die Schule plant den Ausbau des bestehenden Gebäudes um zwei zusätzliche Räume.
The school plans to expand the existing building by adding two more rooms.
