אנחנו רוצים לעבור דירה, כי הדירה הזאת קטנה מדי.

The ל־ marks the infinitive, so it often corresponds to English to.

• לעבור = to move / to pass / to cross, depending on context
• In this sentence, it means to move

So רוצים לעבור = want to move.

לעבור דירה is a very common Hebrew expression meaning to move house / to move to a different home.

Even though דירה literally means apartment / flat, the whole expression functions like one idea: to change where you live.

So:

• לעבור by itself has several meanings
• לעבור דירה specifically means to move home

It is best learned as a set phrase.

Hebrew present-tense forms agree with gender and number.

• רוצים = masculine plural
• רוצות = feminine plural

So אנחנו רוצים is used if:

• the group is all male, or
• the group is mixed, or
• the gender is unspecified and masculine is being used as the default

If the speakers were all female, it would be:

אנחנו רוצות לעבור דירה.

Sometimes yes, but in this sentence אנחנו is very helpful because רוצים does not tell you the person clearly.

רוצים can mean:

• we want
• you (plural masculine) want
• they want

So adding אנחנו makes the subject explicit: we.

This is especially common in the present tense, because Hebrew present-tense verb forms usually show gender and number, but not clearly person.

Because in present-tense Hebrew, the verb to be is usually omitted.

So Hebrew often says something like:

• הדירה הזאת קטנה מדי
• literally: this apartment too small
• natural English: this apartment is too small

But in the past or future, Hebrew does use forms of to be:

• הדירה הזאת הייתה קטנה מדי = this apartment was too small
• הדירה הזאת תהיה קטנה מדי = this apartment will be too small

When Hebrew uses this / that with a noun, the noun is normally made definite.

So:

• דירה = an apartment
• הדירה הזאת = this apartment

You normally do not say דירה הזאת.

A good pattern to remember is:

• הבית הזה = this house
• המכונית הזאת = this car
• הדירה הזאת = this apartment

In Hebrew, demonstratives such as this and that usually come after the noun, not before it.

So Hebrew says:

• הדירה הזאת
• literally: the apartment this
• natural English: this apartment

That word order is normal in Hebrew.

If you say זאת הדירה, that usually means something more like:

• this is the apartment
• or an emphatic this is the apartment

So הדירה הזאת and זאת הדירה are not the same structure.

Because דירה is a feminine singular noun, and the demonstrative has to match it.

• masculine singular: זה / הזה
• feminine singular: זאת / הזאת

So:

• הבית הזה = this house
  (בית is masculine)
• הדירה הזאת = this apartment
  (דירה is feminine)

You may also hear הדירה הזו in modern spoken Hebrew. That is very common too. הזאת is standard and completely natural.

Because adjectives in Hebrew agree with the noun they describe.

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

• קטן = masculine singular
• קטנה = feminine singular

Compare:

• הבית קטן = the house is small
• הדירה קטנה = the apartment is small

So in this sentence, קטנה matches הדירה.

מדי means too, overly, or excessively.

In Hebrew, מדי usually comes after the adjective or adverb:

• קטנה מדי = too small
• יקר מדי = too expensive
• לאט מדי = too slowly

This is different from English, where too usually comes before the adjective:

• English: too small
• Hebrew: small too → קטנה מדי

Because the two instances of דירה are doing different jobs.

1. In לעבור דירה, it is part of the fixed expression meaning to move home
2. In כי הדירה הזאת קטנה מדי, it refers to the specific apartment being talked about

So the repetition is completely natural. Hebrew often repeats a noun where English might also repeat it:

• We want to move, because this apartment is too small

Here, כי means because.

It introduces the reason:

• אנחנו רוצים לעבור דירה = we want to move
• כי הדירה הזאת קטנה מדי = because this apartment is too small

So כי is a very common way to connect a statement with its explanation or reason.

The comma separates the two clauses:

• אנחנו רוצים לעבור דירה
• כי הדירה הזאת קטנה מדי

This is normal in standard Hebrew writing, especially when כי introduces a full clause.

So the comma here is not unusual at all. It works much like a comma in English before a because clause.