جارتي قالتلي انو البلكون بشقتها كبير وفيه شمس الصبح.

Because it comes from جارة = female neighbor. When you add the suffix -ي = my, the final ة becomes a pronounced t:

• جارة → جارتي = my female neighbor

This happens a lot in Arabic:

• شقة → شقتي = my apartment
• سيارة → سيارتي = my car

So جارتي specifically means my female neighbor.

قالتلي means she said to me or she told me.

It breaks down like this:

• قالت = she said
• لي = to me

In colloquial Levantine, these often get pronounced and written together:

• قالتلي instead of قالت لي

So this is very normal spoken-style Arabic.

انو means that.

It introduces the content of what she said:

• قالتلي انو... = She told me that...

In Levantine, you may also see it written as إنو, انو, or sometimes أنه in less dialectal spelling. The pronunciation is often something like enno or inno, depending on the speaker.

Yes, in the sense that it is a normal, everyday Levantine word, even though it is a loanword from European languages.

• البلكون = the balcony

In everyday speech, this is very common. A more formal or Standard Arabic word would be الشرفة. But in Levantine conversation, البلكون sounds natural.

بشقتها means in her apartment.

It breaks down like this:

• بـ = in
• شقة = apartment
• -ها = her

So:

• بشقتها = in her apartment

Also notice the same ة → t pattern before a suffix:

• شقة
• شقتها = her apartment

And the بـ here is a preposition meaning in, not the present-tense marker. You can tell because it is attached to a noun, not a verb.

Because Arabic usually does not use a present-tense to be in sentences like this.

So:

• البلكون بشقتها كبير literally looks like the balcony in-her-apartment big
• but naturally means The balcony in her apartment is big

This is a very common Arabic structure. In the present tense, the is/am/are is usually just understood.

Because البلكون is treated as a masculine noun.

So the adjective agrees with it:

• البلكون كبير = the balcony is big

If the noun were feminine, the adjective would also be feminine:

• الشرفة كبيرة = the balcony/veranda is big

Adjective agreement is very important in Arabic.

Literally, فيه شمس is something like there is sun.

Naturally, in English, it usually means:

• there is sunlight
• it gets sun
• it gets sunshine

So وفيه شمس الصبح means something like:

• and it gets sun in the morning
• and there’s morning sunlight

Here شمس can mean not only the sun itself, but also sunlight/sunshine.

Yes. In Levantine, فيه very often means there is.

So:

• فيه شمس = there is sunlight / it gets sun

You will hear في and فيه both in speech, depending on the region and style. In many contexts, فيه works like an existential expression: there is / there are.

Because Arabic often uses time expressions directly without needing a separate word like in.

So:

• الصبح = in the morning / mornings / the morning

In this sentence:

• شمس الصبح = morning sun
• وفيه شمس الصبح = and it gets morning sun

You may also hear other time expressions used similarly in Levantine.

A rough Levantine pronunciation would be:

jārti 'āletli enno l-balkōn b-shiʔʔta kbīr w fīh shams iṣ-ṣubeḥ

A few notes:

• قالتلي often sounds very connected: 'āletli
• انو may sound like enno or inno
• شقة often has a glottal stop in many Levantine accents: shiʔʔa
• الصبح is often pronounced with the doubled ṣ sound because of the ال

Exact pronunciation varies by country and city, but this is a good general Levantine approximation.

Because بشقتها is giving extra information about البلكون:

• the balcony in her apartment

Then كبير gives the description:

• is big

So the sentence flows as:

• my neighbor told me that the balcony in her apartment is big

You could sometimes move parts around in Arabic, but this order is very natural and clear.