Naš novi stan je dalje od škole nego od parka.

Because they must agree with stan.

• stan is masculine singular
• here it is the subject, so it is in the nominative
• the words describing it must match in gender, number, and case

So you get:

• naš = our
• novi = new
• stan = apartment/flat

If the noun changed, the adjective forms would change too.

Naš novi stan is the most neutral, natural order.

In Croatian, a possessive adjective like naš often comes before a descriptive adjective like novi. So:

• naš novi stan = our new apartment

Other orders are sometimes possible, but they usually sound marked, emphatic, or stylistically different. For a learner, naš novi stan is the best basic pattern to remember.

Je is the present-tense form of biti meaning is. It is also a clitic, which means it is unstressed and usually goes in the second position of the clause.

Here, the first unit is Naš novi stan, so je comes right after it:

• Naš novi stan je...

This is very normal Croatian word order.

Because the sentence is making a comparison.

• daleko = far
• dalje = farther / further

Since the apartment is being compared in relation to school and park, Croatian uses the comparative form dalje.

So:

• Stan je daleko od škole. = The apartment is far from the school.
• Stan je dalje od škole nego od parka. = The apartment is farther from the school than from the park.

Because the preposition od requires the genitive case.

So the base nouns change like this:

• škola → škole
• park → parka

That is why you get:

• od škole
• od parka

This is a very common pattern in Croatian: after od, use the genitive.

They do different jobs.

• od means from and belongs to each place phrase
• nego means than and introduces the second part of the comparison

So the structure is:

• dalje od škole nego od parka
• literally: farther from the school than from the park

You need od with both škole and parka, because both are part of from phrases.

Because Croatian does not have articles like the or a/an.

So Croatian simply says:

• od škole
• od parka

Whether English would use the school, a school, the park, or a park depends on context. Croatian usually leaves that to the situation rather than marking it with an article.

Croatian word order is fairly flexible, but this sentence uses a very natural, neutral order:

• Naš novi stan je dalje od škole nego od parka.

Other orders can be possible for emphasis, but they may sound less neutral or more stylistic. As a learner, this version is a good model because it is clear and standard.