A construction measure in which an existing building, or part of it, is significantly changed, renewed, or adapted for a new purpose. Usually used in the plural.
example
Wegen der Umbauarbeiten ist das Museum für drei Monate geschlossen.
Because of the renovation work, the museum is closed for three months.
Usage tips
Word composition
The word is composed of 'Umbau' (conversion/renovation) and 'Arbeit' (work). 'Umbau' itself consists of the prefix 'um-' and 'Bau' (building/construction, from 'bauen' — to build) and means changing something that already exists.
EXAMPLE
Die Umbauarbeit am alten Bahnhof hat begonnen.
The renovation work at the old train station has begun.
Use in the plural
This noun is almost always used in the plural ('Umbauarbeiten', renovation works/renovation work). This is because a renovation usually consists of many individual tasks and phases.
EXAMPLE
Die Umbauarbeiten im Haus dauern länger als geplant.
The renovation work in the house is taking longer than planned.
Typical collocations
Common verbs used with 'Umbauarbeiten' (renovation work) are 'durchführen' (to carry out), 'vornehmen' (to undertake), 'beginnen' (to begin), and 'abschließen' (to complete). It also often appears with the preposition 'wegen' (because of).
EXAMPLE
Die Firma führt die Umbauarbeiten im Büro durch.
The company is carrying out the renovation work in the office.
Compare with
near_synonym · confusable
Umbauarbeit vs Ausbau
expansion / removal
'der Ausbau' and 'die Umbauarbeit' can both refer to work on an existing building. 'der Ausbau' fits especially when a space is being finished or made usable, for example an attic or basement. 'die Umbauarbeit' more often refers to a change: rooms are used differently, walls are moved, or something is renewed. The word is often used in the plural as 'Umbauarbeiten'. The words can be confused because both can be construction work inside a building. If something is unfinished and is being completed, 'Ausbau' fits. If something existing is being changed, 'Umbauarbeiten' is better.
Umbauarbeit
Morgen beginnen die Umbauarbeiten in der alten Küche.
The renovation work in the old kitchen starts tomorrow.
Ausbau
Wir haben den Ausbau des Dachbodens endlich abgeschlossen.