البيت الجديد جنب المستشفى، مش في اول الشارع.

In Egyptian Arabic, the present-tense verb to be is usually not said.

So:

البيت الجديد جنب المستشفى
literally looks like the house the new next to the hospital

but it naturally means:

The new house is next to the hospital

The same idea applies to مش في اول الشارع: the meaning is it is not at the beginning of the street, even though there is no separate word for is.

Because in Arabic, adjectives normally come after the noun they describe.

So:

• البيت الجديد = the new house
• not الجديد البيت

This is the normal word order in Egyptian Arabic and in Standard Arabic too.

Because adjectives in Arabic agree with the noun in definiteness.

• البيت الجديد = the new house
• بيت جديد = a new house

So if the noun has الـ, the adjective usually has الـ too.

بيت can mean either house or home, depending on context.

In this sentence, since the speaker is describing a physical location relative to the hospital and the street, English usually translates it as house. But in other contexts, بيت can definitely mean home.

جنب means next to, beside, or by in Egyptian Arabic.

Here:

جنب المستشفى = next to the hospital

It works like a preposition, so it is followed directly by the noun phrase.

A very common Egyptian pronunciation is gamb. The spelling has ن, but before ب it often sounds like m, so learners often hear gamb rather than ganb.

In Egyptian Arabic, مش is the normal way to negate many non-verbal sentences, including sentences with adjectives, nouns, and location phrases.

So:

• مش في اول الشارع = not at the beginning of the street

By contrast:

• ليس is formal Standard Arabic, not normal everyday Egyptian speech
• لا is not the usual colloquial choice here

So مش is exactly what you would expect in natural Egyptian Arabic.

This is an idafa structure, which is a very common Arabic noun construction.

أول الشارع means:

• the beginning of the street
• literally something like first of the street

In an idafa:

• the first word is usually bare, without الـ
• the second word can be definite

So:

• أول الشارع is correct
• not الأول الشارع

Also, many people casually write اول instead of the more formal spelling أول.

And في here means in / at, so:

في أول الشارع = at the beginning of the street

Because in أول الشارع, the second noun الشارع makes the whole idafa phrase definite.

So:

• أول شارع = the beginning of a street or a street’s beginning
• أول الشارع = the beginning of the street

That is why the English translation uses the street, not a street.

Because ش is a sun letter.

When الـ comes before a sun letter, the l sound assimilates to the next consonant. So:

• الشارع is pronounced esh-shareʿ

But in:

• المستشفى

the ل is still pronounced, because م is a moon letter:

• el-mostashfa

This sun-letter/moon-letter pattern is very important for pronunciation.

That is a classic feature of Egyptian Arabic.

In Egyptian pronunciation, ج is usually pronounced g, not j.

So in this sentence:

• الجديد sounds like el-gedid
• جنب sounds like gamb

This is one of the clearest differences between Egyptian Arabic and many other varieties of Arabic.

A common pronunciation would be:

el-bet el-gedid gamb el-mostashfa, mish fi awwel esh-shareʿ

You may also hear small pronunciation differences depending on the speaker, but that version is a good, natural Egyptian model.