Bei der Schlüsselübergabe fragen wir, ob die Einbauküche wirklich im Preis enthalten ist.

It means at the key handover or when the keys are handed over.

More literally:

• bei = at / during
• der Schlüsselübergabe = the key handover

So the phrase sets the time or situation: At the key handover, we ask...

In contexts like buying or renting property, Schlüsselübergabe is the moment when the keys are officially given to the new owner or tenant.

Because bei always takes the dative case.

The noun is:

• die Schlüsselübergabe = the key handover
  feminine noun

Its dative singular form is:

• der Schlüsselübergabe

So:

• die Schlüsselübergabe → nominative
• bei der Schlüsselübergabe → dative after bei

It is a compound noun, which is very common in German.

It is made of:

• der Schlüssel = key
• die Übergabe = handover / transfer

Together:

• die Schlüsselübergabe = key handover

The gender of a German compound noun is determined by the last part, so because Übergabe is feminine, Schlüsselübergabe is also feminine.

Because German main clauses follow the verb-second rule.

The sentence begins with a time phrase:

• Bei der Schlüsselübergabe

That element takes the first position. The conjugated verb must then come second:

• Bei der Schlüsselübergabe fragen wir ...

This is completely normal German word order.

Compare:

• Wir fragen bei der Schlüsselübergabe ...
• Bei der Schlüsselübergabe fragen wir ...

Both are correct, but the second one emphasizes the time/situation first.

Here ob means whether or if.

So:

• wir fragen, ob ... = we ask whether ... / we ask if ...

This ob introduces an indirect yes/no question.

Examples:

• Ich weiß nicht, ob er kommt. = I don’t know if/whether he is coming.
• Sie fragt, ob das teuer ist. = She asks whether that is expensive.

Because in German, a subordinate clause introduced by a word like ob, dass, weil, etc. is separated from the main clause by a comma.

So:

• Bei der Schlüsselübergabe fragen wir, ob ...

The comma marks the beginning of the subordinate clause.

Because ob introduces a subordinate clause, and in German subordinate clauses the conjugated verb usually goes to the end.

Main clause:

• Wir fragen ...

Subordinate clause:

• ob die Einbauküche wirklich im Preis enthalten ist

The finite verb is ist, so it moves to the end of that clause.

This is one of the most important word-order patterns in German.

Einbauküche usually means a fitted kitchen or built-in kitchen.

It refers to a kitchen with installed units and often built-in appliances, not just a loose table and a few movable items.

In property contexts, whether the Einbauküche is included in the sale price or rent can be an important question.

Im is just the common contraction of in dem.

So:

• im Preis = in dem Preis

German often contracts certain preposition + article combinations:

• in dem → im
• an dem → am
• zu dem → zum
• zu der → zur

Here, im Preis enthalten is a fixed and very common expression meaning included in the price.

It means is included.

The core expression is:

• im Preis enthalten sein = to be included in the price

Here:

• enthalten = included / contained
• ist = is

So:

• die Einbauküche wirklich im Preis enthalten ist = the fitted kitchen really is included in the price

Although enthalten looks like a past participle, in this expression it functions like a predicate adjective with sein.

Wirklich means really and it emphasizes the statement.

In this sentence it modifies the idea of being included:

• ob die Einbauküche wirklich im Preis enthalten ist
• whether the fitted kitchen really is included in the price

Its position is natural because it comes before the part it emphasizes. German adverb placement can vary somewhat, but this version sounds very normal.

Yes. German often uses the present tense for future situations when the context already makes the timing clear.

So this sentence can mean:

• At the key handover, we ask whether the fitted kitchen is really included in the price.

Even if the handover has not happened yet, the present tense is normal because Bei der Schlüsselübergabe already tells you when this will happen.

English does something similar:

• Tomorrow we ask about it.

Yes. In English, both can work:

• we ask if the fitted kitchen is really included in the price
• we ask whether the fitted kitchen is really included in the price

But in German, ob is specifically used for this kind of indirect yes/no question.

A useful tip:

• ob = whether / if
• wenn = if / when for conditions or repeated events

So here only ob works.

Because all nouns are capitalized in German.

So in this sentence:

• Schlüsselübergabe = noun
• Einbauküche = noun
• Preis = noun

That is a standard rule in German spelling and one of the easiest ways to spot nouns in a sentence.