الشقة بانت واسعة.

Here بانت means something like seemed, looked, or turned out to be.

So الشقة بانت واسعة is not just a plain description. It suggests an impression: the apartment gave the impression of being spacious, or it turned out to be spacious when someone saw it.

The verb comes from بان, which is related to the idea of something becoming clear or apparent.

Because الشقة is grammatically feminine in Arabic, and the verb agrees with it.

• بان = he/it appeared, for masculine
• بانت = she/it appeared, for feminine

Since شقة is a feminine noun, the sentence uses بانت.

Yes. Formally, بانت is past tense.

But in real usage, this kind of past tense can describe an impression someone got at a particular moment. So in English, depending on context, it may sound natural as:

• seemed spacious
• looked spacious
• turned out to be spacious

So even though it is grammatically past, the meaning can feel more like a present impression in English.

Because واسعة here is not part of a noun phrase like the spacious apartment. It is the description being said about the apartment.

Compare:

• الشقة الواسعة = the spacious apartment
  This is just a noun phrase.
• الشقة بانت واسعة = The apartment seemed spacious
  This is a full sentence.

So واسعة stays without ال because it is a predicate adjective, not an attributive adjective.

Adjectives in Arabic usually agree with the noun they describe in gender and number.

Since الشقة is feminine singular, the adjective must also be feminine singular:

• masculine: واسع
• feminine: واسعة

So واسعة matches الشقة.

A common Levantine-style pronunciation would be approximately:

ish-shiʔʔa baanit waasʕa

A few useful notes:

• الشقة is usually pronounced something like ish-shiʔʔa or esh-sheʔʔa, depending on region.
• The ال blends into the ش, because ش is a sun letter.
• The ق in شقة is often pronounced as a glottal stop in many urban Levantine accents.
• بانت may sound like baanit or baanet, depending on accent.

Yes.

الشقة واسعة simply means The apartment is spacious. It is a direct description.

الشقة بانت واسعة adds a different nuance:

• it seemed spacious
• it looked spacious
• it came across as spacious

So both are correct, but they are not exactly the same.

The difference is in meaning:

• الشقة كانت واسعة = The apartment was spacious
  This is a straightforward past description.
• الشقة بانت واسعة = The apartment seemed/looked spacious
  This focuses on appearance or impression.

So كانت tells you a fact in the past, while بانت tells you how it appeared.

It can mean both, depending on context.

For a place like an apartment, room, or house, واسعة usually means spacious.

In other contexts, it can mean wide or broad. Arabic often uses the same adjective where English chooses different words.

Because Arabic verbs already include that information.

In بانت, the ending tells you the subject is feminine singular, so Arabic does not need a separate word for it.

So بانت already carries the idea of it seemed/appeared, and then الشقة names what that it is.

Yes, Arabic word order is flexible.

الشقة بانت واسعة is very natural in Levantine, especially in everyday speech, because starting with the noun makes the topic clear right away: the apartment.

You may also hear verb-first structures in Arabic, but this noun-first order is very common in Levantine conversation.

Other Arabic speakers would generally understand it, especially because the words are common and the spelling is standard-looking.

What makes it feel Levantine is mostly:

• the spoken pronunciation
• the everyday conversational use
• the naturalness of this kind of structure in Levantine speech

So it is very usable in Levantine, but it is not so dialect-specific that others would be confused.