Wegen der Mieterhöhung suchen viele Leute gerade eine neue Wohnung.

Yes. German sentences can very naturally begin with a prepositional phrase like Wegen der Mieterhöhung.

That first element takes up the first position in the sentence, and then the conjugated verb must come next:

• Wegen der Mieterhöhung suchen viele Leute gerade eine neue Wohnung.

This is a standard example of the German verb-second (V2) rule in main clauses.

You could also say:

• Viele Leute suchen gerade wegen der Mieterhöhung eine neue Wohnung.

That is also grammatical, but the original sentence emphasizes the reason right away.

Traditionally, wegen takes the genitive case.

So:

• wegen der Mieterhöhung = because of the rent increase

That is why you do not see die Mieterhöhung here.

A useful rule:

• wegen + genitive

Examples:

• wegen des Wetters
• wegen der Arbeit
• wegen meiner Prüfung

In everyday spoken German, some people use dative after wegen, but learners should usually first learn the standard pattern: wegen + genitive.

Good question. Mieterhöhung is indeed a feminine noun:

• nominative: die Mieterhöhung

But after wegen, the noun is in the genitive. For feminine nouns, the article changes like this:

• nominative: die
• genitive: der

So:

• die Mieterhöhung → wegen der Mieterhöhung

This can be confusing because der is also used for:

• masculine nominative
• feminine dative
• feminine genitive
• plural dative

So here, der does not mean masculine. It is simply the genitive feminine article.

Because in a German main clause, the conjugated verb must be in the second position.

The first position is occupied by:

• Wegen der Mieterhöhung

So the verb comes next:

• suchen

Then comes the subject:

• viele Leute

Structure:

• 1st position: Wegen der Mieterhöhung
• 2nd position: suchen
• subject: viele Leute
• adverb: gerade
• object: eine neue Wohnung

If the subject came first, the sentence would be:

• Viele Leute suchen gerade wegen der Mieterhöhung eine neue Wohnung.

Yes. Viele Leute is the subject.

You can tell because:

• it is the group doing the action
• the verb agrees with it in the plural: suchen

So:

• viele Leute = subject
• suchen = verb
• eine neue Wohnung = direct object

Even though viele Leute comes after the verb, it is still the subject. In German, the subject does not always come before the verb.

Here, gerade means something like:

• right now
• currently
• at the moment

So it tells you that many people are currently looking for a new apartment.

This word has several meanings in German depending on context. For example, gerade can also mean:

• just
• exactly
• straight

But in this sentence, the time-related meaning is the important one.

Because Wohnung is a feminine noun, and here it is the direct object, so it is in the accusative.

For feminine nouns, the indefinite article in nominative and accusative is the same:

• nominative: eine Wohnung
• accusative: eine Wohnung

The adjective ending also matches the pattern after eine:

• eine neue Wohnung

Breakdown:

• eine = feminine accusative singular article
• neue = adjective ending for feminine accusative singular after eine
• Wohnung = noun

So the whole object is:

• eine neue Wohnung

Because it is what the people are looking for.

The verb suchen usually takes an accusative object:

• Ich suche eine Wohnung.
• Sie suchen einen Arzt.
• Wir suchen das Buch.

In your sentence:

• viele Leute = who is doing the action
• suchen = the action
• eine neue Wohnung = what they are looking for

So eine neue Wohnung is the direct object in the accusative case.

Yes. Mieterhöhung is a compound noun.

It is built from:

• die Miete = rent
• die Erhöhung = increase

Together:

• die Mieterhöhung = rent increase

This is very common in German. German often combines nouns into one longer word.

A few similar examples:

• Preiserhöhung = price increase
• Lohnerhöhung = wage increase
• Mietvertrag = rental contract / lease

So if you learn to spot the parts of a compound noun, long German words become much easier to understand.

That is a normal feature of German compounds. The first word in a compound often appears in a stem form rather than exactly the same form it has when standing alone.

So:

• die Miete → Miet-
• die Erhöhung

Together:

• Mieterhöhung

You do not need to think of this as a separate grammar case; it is just how the compound is formed.

You will see this a lot:

• die Schule → Schul- in Schulbuch
• die Liebe → Liebes- in Liebesbrief

The exact linking pattern varies, so it is often best to learn common compounds as vocabulary items.

In this sentence, no: wegen dem Mieterhöhung would be wrong for two reasons.

First, Mieterhöhung is feminine, so dem does not fit anyway.

Second, standard German normally uses genitive after wegen:

• wegen der Mieterhöhung

You may hear nonstandard spoken forms like wegen dem Wetter in everyday conversation, because some speakers use dative after wegen. But for careful German, especially in writing and in learning materials, use:

• wegen + genitive

So here the correct form is:

• wegen der Mieterhöhung

Yes, German word order is flexible, but the verb-second rule still applies in main clauses.

Possible versions include:

• Wegen der Mieterhöhung suchen viele Leute gerade eine neue Wohnung.
• Viele Leute suchen gerade wegen der Mieterhöhung eine neue Wohnung.
• Gerade suchen viele Leute wegen der Mieterhöhung eine neue Wohnung.

These versions all work, but they shift the emphasis slightly:

• starting with Wegen der Mieterhöhung emphasizes the cause
• starting with Viele Leute emphasizes the people
• starting with Gerade emphasizes the current moment

So German often uses word order to highlight what is most important.

Both are possible, but they are not always identical in tone.

• Leute = people, very common and everyday
• Menschen = people/human beings, often a bit more neutral, general, or formal depending on context

In this sentence, viele Leute sounds very natural and idiomatic.

Compare:

• Viele Leute suchen gerade eine neue Wohnung.
  Very normal in everyday German.
• Viele Menschen suchen gerade eine neue Wohnung.
  Also correct, slightly different in tone.

So Leute is simply a natural choice here.

The basic pattern is:

• Reason + verb + subject + time word + object

More specifically:

• Wegen der Mieterhöhung = prepositional phrase showing reason
• suchen = conjugated verb
• viele Leute = subject
• gerade = adverb
• eine neue Wohnung = accusative object

If you reduce it to the core, you get:

• Viele Leute suchen eine neue Wohnung.

The rest adds extra information:

• wegen der Mieterhöhung = why
• gerade = when / at what time frame