البواب بالبناية.

Because Levantine Arabic usually leaves out the present-tense verb to be.

So a sentence like البواب بالبناية is a completely normal present-tense sentence. Arabic just puts:

• البواب = the doorman
• بالبناية = in the building

Literally, it is something like the doorman in the building, but the meaning is understood as the doorman is in the building.

If you wanted past tense, you would usually add كان:

• البواب كان بالبناية = the doorman was in the building

Here بـ is a preposition meaning in, at, or sometimes inside, depending on context.

So:

• البناية = the building
• بالبناية = in the building

In Arabic, short prepositions often attach directly to the following word. That is why you do not see a separate word for in.

Because the noun is still definite: the building.

Arabic combines the preposition بـ with the definite article الـ:

• بـ + الـ + بناية
• written together as بالبناية

So this is not in a building. It is specifically in the building.

A common Levantine-style pronunciation would be roughly:

il-bawwāb bil-bināye

Depending on the region, you may also hear something closer to:

el-bawwab bel-bnayé

A few helpful notes:

• الـ is often pronounced il- or el- in Levantine
• بالـ often sounds like bil- or bel-
• بواب has a doubled w sound: bawwāb

البواب usually means the doorman, the building caretaker, or the porter, depending on context.

In many Levantine contexts, it refers to the person who works at or looks after a residential building. It does not have to mean a fancy hotel-style doorman. It can simply mean the man responsible for the entrance or general care of the building.

In this sentence:

• البواب is the subject/topic
• بالبناية is the predicate that tells you where he is

So the structure is:

• the doorman
  • in the building

This is a very common pattern in Arabic for present-tense sentences: noun + prepositional phrase

For example:

• المدير بالمكتب = the manager is in the office
• الولد بالبيت = the boy is at home

It is absolutely understandable across Arabic, and the basic structure works in both Levantine and Standard Arabic.

What makes it feel conversational/Levantine is mainly:

• the everyday wording
• the lack of case endings
• the spoken pronunciation

In formal Standard Arabic, the same written sentence could also appear, especially without full vowel markings: البواب بالبناية

But in speech, Levantine pronunciation would make it sound more colloquial.

Usually بناية means building, especially a residential or multi-story building.

In Levantine, it is a very common everyday word. Depending on context, people might also use other words such as:

• عمارة = apartment building / building
• مبنى = building, often a bit more formal

So بالبناية sounds very natural for in the building.

Yes. بـ is a very flexible preposition in Arabic, and it can mean things like:

• in
• at
• with
• by
• using

But in بالبناية, the location meaning is the natural one: in the building or at the building.

That kind of flexibility is normal in Arabic prepositions, so the exact meaning often depends on the noun and the situation.

You would remove the definite article from building.

So compare:

• البواب بالبناية = the doorman is in the building
• البواب ببناية = the doorman is in a building

Notice that Arabic does not have a separate word for a/an. Indefiniteness is usually shown simply by the absence of الـ.