Kosztorys obejmuje remont części wspólnej.

Kosztorys means a cost estimate, quotation, or budget breakdown, especially in construction, renovation, or technical contexts. It often suggests a document listing planned work and expected costs, not just a rough guess.

In this sentence, it is the subject: The cost estimate ...

Obejmuje is the 3rd person singular present tense of obejmować.

Here it means includes, covers, or contains.

So:

• Kosztorys obejmuje ... = The cost estimate includes ...

This verb is very common in formal and written Polish when talking about what a document, plan, law, price, or project covers.

Because the subject is kosztorys, which is singular.

Polish verbs agree with the subject in number (and in the past tense also gender). Since kosztorys = the cost estimate is singular, the verb is singular too:

• kosztorys obejmuje = the estimate includes
• plural would be kosztorysy obejmują = the estimates include

Because remont is the direct object of the verb obejmuje, so it is in the accusative case.

However, remont is a masculine inanimate noun, and for many masculine inanimate nouns, the accusative singular looks exactly like the nominative singular.

So:

• nominative: remont
• accusative: remont

Even though the form does not change, the grammatical role does.

Because after remont we get a phrase meaning renovation of the common part/area, and in Polish that noun phrase is put into the genitive.

Base form:

• część wspólna = common part / shared part

Genitive singular:

• części wspólnej = of the common part

So:

• remont części wspólnej = renovation of the common part

This is a very common pattern in Polish:

• naprawa dachu = repair of the roof
• budowa domu = construction of a house
• remont kuchni = renovation of the kitchen

Normally, Polish adjectives often come before the noun, but in some expressions—especially formal, legal, administrative, or technical ones—the adjective can come after the noun.

Część wspólna is a set phrase in property/building language, meaning a common/shared part of a building or property.

So while wspólna część is grammatically possible in some contexts, część wspólna sounds more like the established formal term here.

In housing, real estate, or building management, część wspólna usually means a shared/common part of a property used by all residents or owners.

Typical examples include:

• a staircase
• a corridor
• the roof
• an entrance hall
• a lift
• shared installations

So this sentence sounds like something from a building, property, or condominium document.

Yes, depending on context, that can be a very natural translation.

Część wspólna does not always map neatly onto one fixed English phrase. Depending on the situation, you might translate it as:

• common part
• shared part
• common area
• common property element

In plain English, common area is often the smoothest choice if the context is a building.

Because Polish does not have articles like English a/an and the.

So Polish simply says:

• Kosztorys obejmuje remont części wspólnej.

English must choose:

• The cost estimate includes the renovation of the common area
• or A cost estimate includes renovation of a common area

Which one is correct depends on context, but Polish does not mark that difference directly with articles.

Yes, Polish word order is more flexible than English, because case endings show grammatical relationships.

The given order is natural and neutral for a formal sentence:

• Kosztorys obejmuje remont części wspólnej.

You could rearrange it for emphasis, but in official or technical writing this version is the most straightforward.

For example, changing the order might sound marked or emphasize a different part of the message. A learner should usually keep the original order unless there is a special reason to change it.

Yes, it sounds quite formal and administrative.

Words like kosztorys, obejmuje, and the phrase część wspólna are very typical of:

• official documents
• renovation plans
• real estate paperwork
• property management language
• technical descriptions

In everyday conversation, someone might say something less formal, but this sentence is perfectly natural in written professional Polish.