جارتي الجديدة ساكنة بشقة صغيرة بنفس البناية.

جارتي means my female neighbor.

It is built from:

• جارة = female neighbor
• -ي = my

So:

• جارة → جارتي = my neighbor (female)

Because the neighbor in this sentence is a woman, the feminine noun جارة is used. If it were a male neighbor, you would usually say جاري = my male neighbor.

In Arabic, adjectives normally come after the noun they describe.

So:

• جارتي الجديدة = literally my neighbor the-new
• natural English: my new neighbor

This is the normal Arabic word order:

• noun first
• adjective second

The same thing happens later in the sentence:

• شقة صغيرة = a small apartment

Because جارتي is already definite.

A noun with a possessive ending like -ي (my) is definite by nature. You are talking about a specific person: my neighbor, not just a neighbor.

In Arabic, when a noun is definite, its adjective must also be definite. So:

• جارتي = definite
• therefore الجديدة must also be definite

That is why you get:

• جارتي الجديدة = my new neighbor

not just جارتي جديدة in normal usage.

ساكنة is an active participle from the verb سكن (to live / reside), and in Levantine it is very commonly used to mean:

• living
• residing
• located

So ساكنة بشقة صغيرة means something like:

• she’s living in a small apartment
• she lives in a small apartment

In Levantine, this is very natural. You could also hear:

• جارتي الجديدة بتسكن بشقة صغيرة...

That also means my new neighbor lives in a small apartment...

Very roughly:

• ساكنة often feels a bit like describing a state or situation
• بتسكن is a more straightforward present-tense verb

Both are normal.

Yes — from an English point of view, you can think of it that way.

In present-tense Arabic, especially in sentences like this, there is usually no separate word for is / am / are.

So:

• جارتي الجديدة ساكنة...
• literally: my new neighbor living...
• natural English: my new neighbor is living... / lives...

This is completely normal Arabic structure.

If you wanted the past, then you would use a form of كان:

• كانت ساكنة... = she was living...

Because it agrees with جارتي, which refers to a female person.

In Arabic, words like adjectives and participles often agree in gender with the noun they describe. Since the subject is feminine, you get:

• ساكنة = feminine

If the subject were masculine, it would be:

• ساكن

For example:

• جاري الجديد ساكن بشقة صغيرة = my new male neighbor lives in a small apartment

Because it describes شقة, and شقة is a feminine noun.

So:

• شقة = feminine noun
• صغيرة = feminine form of small

That is why the phrase is:

• شقة صغيرة = a small apartment

If the noun were masculine, the adjective would usually be masculine too.

Here, بـ means something like in.

So:

• بشقة = in an apartment

In Levantine, بـ is a very common preposition and can cover meanings like:

• in
• at
• with
• sometimes other related ideas depending on context

In this sentence, the meaning is clearly locational:

• ساكنة بشقة صغيرة = living in a small apartment

بنفس البناية means in the same building.

Breakdown:

• بـ = in
• نفس = same
• البناية = the building

So literally it is something like:

• in same the-building

but the natural meaning is:

• in the same building

This is a very common Arabic pattern:

• نفس الشي = the same thing
• نفس اليوم = the same day

After نفس meaning same, Arabic usually uses a definite noun.

So the normal pattern is:

• نفس + definite noun

That is why you get:

• نفس البناية = the same building

not usually just نفس بناية in this meaning.

Also, in context, it often refers to a specific known building — for example, the speaker’s building.

Yes, both are possible.

For the apartment part:

• بشقة صغيرة = very natural in Levantine
• في شقة صغيرة = also understandable and natural in many contexts

For the last part:

• بنفس البناية
• بالبناية نفسها

Both can mean in the same building.

So these are all reasonable variations:

• جارتي الجديدة ساكنة بشقة صغيرة بنفس البناية
• جارتي الجديدة ساكنة في شقة صغيرة بنفس البناية
• جارتي الجديدة ساكنة بشقة صغيرة بالبناية نفسها

They are very close in meaning, with only small differences in style or emphasis.

It can be divided into two main parts:

1. جارتي الجديدة

   • my new neighbor
   • this is the subject

2. ساكنة بشقة صغيرة بنفس البناية

   • living in a small apartment in the same building
   • this is the predicate, telling you something about the subject

So the full sentence is a very normal present-tense Arabic sentence:

• [subject] + [description/state]

In natural English, you would translate it as:

• My new neighbor lives in a small apartment in the same building.
• or My new neighbor is living in a small apartment in the same building.