Der Veranstaltungsraum steht im Nutzungsvertrag.

Because der Veranstaltungsraum is the subject of the sentence, so it is in the nominative case.

• der Veranstaltungsraum = nominative
• den Veranstaltungsraum = accusative
• dem Veranstaltungsraum = dative

In this sentence, steht is the verb, and the thing doing the standing / being stated is der Veranstaltungsraum.

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

It is made of:

• Veranstaltung = event
• Raum = room, space

So Veranstaltungsraum literally means something like event room or function room / venue room, depending on context.

In German, the last part of a compound usually determines the basic meaning and the grammatical gender. Since der Raum is masculine, the full word is also masculine: der Veranstaltungsraum.

German often uses stehen in a figurative way when talking about written information.

So:

• Das steht im Vertrag.
• Das steht in der E-Mail.
• Das steht im Gesetz.

all mean something like:

• That is written in the contract
• That appears in the email
• That is stated in the law

So in your sentence, steht does not mean the room is physically standing somewhere. It means the room is mentioned / specified in the usage agreement.

This is a very common and natural use of stehen.

im is a contraction of:

• in dem → im

So:

• im Nutzungsvertrag = in the usage agreement / in the contract

German often contracts certain preposition + article combinations:

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

Here, Vertrag is masculine: der Vertrag.
After in in this meaning, German uses the dative, so dem Vertrag is correct. That gives in dem Vertrag, usually shortened to im Vertrag.

Because this is a location / position use of in, not a direction use.

German two-way prepositions like in can take:

• accusative for movement toward something
• dative for being in a place

Compare:

• Ich gehe in den Raum. = I go into the room.
  → movement, so accusative
• Ich bin im Raum. = I am in the room.
  → location, so dative

In steht im Nutzungsvertrag, the idea is that the information is located in the contract, so German uses the dative.

Nutzungsvertrag is another compound noun:

• Nutzung = use, usage
• Vertrag = contract, agreement

So Nutzungsvertrag means usage agreement, use agreement, or sometimes contract for use, depending on context.

It often refers to an agreement regulating how something may be used, for example:

• a room
• a building
• software
• equipment
• rented facilities

Because Vertrag is masculine (der Vertrag), the full noun is also masculine: der Nutzungsvertrag.

Yes. In dem Nutzungsvertrag is grammatically correct.

But in normal German, im Nutzungsvertrag is much more natural and much more common.

So:

• Der Veranstaltungsraum steht in dem Nutzungsvertrag. = correct
• Der Veranstaltungsraum steht im Nutzungsvertrag. = correct and more idiomatic

Sometimes people use the full form in dem for emphasis, but usually the contracted form sounds better.

Yes, this is normal standard German word order.

The sentence structure is:

• Der Veranstaltungsraum = subject
• steht = verb
• im Nutzungsvertrag = prepositional phrase

So it follows the usual main-clause rule: the finite verb is in second position.

Pattern:

• Subject + verb + other information

Example:

• Der Name steht im Vertrag.
• Die Adresse steht in der E-Mail.

Very standard.

It is grammatical, but whether it sounds fully natural depends on the intended meaning.

If you mean the function room is mentioned in the usage agreement, then steht im Nutzungsvertrag is possible, but many native speakers might prefer something a bit clearer, such as:

• Der Veranstaltungsraum ist im Nutzungsvertrag aufgeführt.
• Der Veranstaltungsraum wird im Nutzungsvertrag genannt.
• Der Veranstaltungsraum ist im Nutzungsvertrag angegeben.

That is because stehen works very naturally for facts, names, dates, rules, and written details, but with a noun like Veranstaltungsraum, the sentence can sound slightly unusual unless the context makes it clear that you mean the room is listed in the contract.

So the sentence is understandable, but there may be more idiomatic alternatives depending on context.

In German, all nouns are capitalized, not just proper names.

So in this sentence:

• Veranstaltungsraum
• Nutzungsvertrag

are capitalized because they are nouns.

This is one of the most noticeable spelling differences between English and German.

Compare:

• der Raum
• die Nutzung
• der Vertrag

All nouns, so all capitalized.

Yes. German often uses a compound noun like Veranstaltungsraum very directly where English might choose several different expressions depending on style and context.

Possible English equivalents include:

• function room
• event room
• event space
• venue room
• sometimes simply the room

The German word itself does not force just one English translation. The best choice depends on the situation.

So a learner should focus less on finding one perfect English word and more on understanding the parts:

• Veranstaltung = event
• Raum = room / space

That will help you recognize the word in many contexts.