Za miesiąc przeprowadzam się do małej kawalerki w spokojnej okolicy.

In Polish, the present tense is often used for a planned future action, especially when the time is already clear from the sentence.

Here, za miesiąc tells you the action is future, so przeprowadzam się is understood as I’m moving in a month or I’m going to move in a month.

This is very natural in Polish, just like English can say I’m moving next month.

Się is part of the verb przeprowadzać się / przeprowadzić się, which means to move house / to relocate oneself.

Without się, przeprowadzać usually means something else, such as:

• to carry out
• to conduct
• to move something/someone

So:

• przeprowadzam się = I’m moving
• przeprowadzam remont = I’m carrying out a renovation

In this sentence, się is necessary.

This is a question of aspect.

• przeprowadzać się = imperfective
• przeprowadzić się = perfective

So:

• Za miesiąc przeprowadzam się...
  sounds like a planned future arrangement
• Za miesiąc przeprowadzę się...
  sounds more like a single completed future event

Both are possible, but the version in your sentence is very natural for talking about a plan.

Za miesiąc means in a month / one month from now.

This is a very common Polish pattern:

• za godzinę = in an hour
• za tydzień = in a week
• za rok = in a year

Be careful not to confuse it with:

• po miesiącu = after a month
• w miesiąc = within a month / in the space of a month

So za miesiąc is the normal way to say one month from now.

Because the preposition do requires the genitive case.

So both the adjective and the noun have to change:

• mała kawalerka = nominative, dictionary form
• do małej kawalerki = genitive after do

Breakdown:

• mała → małej
• kawalerka → kawalerki

This is very common in Polish:

• do domu = to the house/home
• do szkoły = to school
• do małej kawalerki = to a small studio apartment

Kawalerka means a studio apartment or one-room flat.

It does not literally mean that a bachelor lives there, even though the word is historically related to kawaler (bachelor). In modern Polish, it is just a normal word for a small one-room apartment.

So it is best understood as:

• studio apartment
• bedsit or one-room flat in British English, depending on context

Because w here means in, and after w in a static location meaning, Polish usually uses the locative case.

So:

• spokojna okolica = nominative
• w spokojnej okolicy = locative

This phrase describes where the apartment is located: it is in a quiet area/neighborhood.

So the structure is:

• do małej kawalerki = to a small studio apartment
• w spokojnej okolicy = in a quiet area

Because they are both feminine singular, and in these cases the adjective ending is often -ej.

Here:

• małej is feminine singular genitive because of do
• spokojnej is feminine singular locative because of w

So the cases are different, but the adjective ending happens to look the same.

That is why you get:

• do małej kawalerki
• w spokojnej okolicy

Even though both adjectives end in -ej, they are not in the same case.

Yes. Polish word order is fairly flexible, although some orders sound more neutral than others.

Your sentence:

Za miesiąc przeprowadzam się do małej kawalerki w spokojnej okolicy.

is very natural and neutral.

You could also say:

• Przeprowadzam się za miesiąc do małej kawalerki w spokojnej okolicy.
• Do małej kawalerki w spokojnej okolicy przeprowadzam się za miesiąc.

These versions are grammatically possible, but they shift the emphasis.

The original sentence starts with Za miesiąc, which highlights when the move will happen.

Yes, but it would mean something slightly different.

• do małej kawalerki w spokojnej okolicy
  = to a small studio apartment in a quiet area
• do spokojnej okolicy
  = to a quiet area / neighborhood

So in your sentence, w spokojnej okolicy describes the apartment. The main destination is the apartment, not the neighborhood itself.

If you said:

Za miesiąc przeprowadzam się do spokojnej okolicy.

that would mean:

In a month I’m moving to a quiet neighborhood/area.

So both are possible, but they focus on different destinations.