Trvalý pobyt lze změnit na ohlašovně.

Lze is a fairly formal, impersonal way to say it is possible to or can be.

So:

• lze změnit = can be changed / it is possible to change
• můžete změnit = you can change

The version with lze is common in official, administrative, and written language because it sounds neutral and general. It does not directly address you.

A close paraphrase would be:

• Trvalý pobyt můžete změnit na ohlašovně.

That is more direct and slightly less formal.

Because lze is followed by an infinitive.

This pattern works like:

• lze udělat = it can be done
• lze vyřídit = it can be arranged
• lze změnit = it can be changed

So the structure is:

• lze
  • infinitive

That is why you do not see a finite verb like změníte here.

Trvalý pobyt is in the accusative here because it is the direct object of změnit.

You are changing what? → trvalý pobyt

For this masculine inanimate noun phrase, the accusative looks the same as the nominative:

• nominative: trvalý pobyt
• accusative: trvalý pobyt

So even though the form does not change visibly, its role in the sentence is that of the object.

Ohlašovně is in the locative singular.

The preposition na can take different cases depending on meaning:

• na
  • accusative = movement toward something
• na
  • locative = location, being at a place

Here the meaning is location:

• na ohlašovně = at the registry office / at the registration office

So we use the locative:

• ohlašovna → na ohlašovně

This is similar to:

• na poště = at the post office
• na policii = at the police station
• na úřadě uses v/na differently depending on the expression, so prepositions must often be learned with the place name.

Ohlašovna is an administrative office connected with residence registration. In the context of Czech bureaucracy, it is the place where residence-related matters are officially reported or registered.

For a learner, the safest understanding in this sentence is something like:

• registry office for residence reporting
• residence registration office
• sometimes more loosely municipal office desk handling address registration

It is a specific bureaucratic term, so in real life its exact English equivalent may depend on context.

Because trvalý is an adjective meaning permanent, and it must agree with the noun pobyt.

• pobyt = stay / residence
• trvalý pobyt = permanent residence

Agreement here is:

• masculine inanimate
• singular
• accusative (same form as nominative here)

So:

• trvalý matches pobyt

By contrast, trvale is an adverb, meaning something like permanently, and it would not modify a noun directly in this way.

Not exactly.

• pobyt refers to residence/stay, often in an official or legal sense
• bydliště means address, domicile, or place where someone lives

In Czech administrative language, trvalý pobyt is a fixed legal term meaning permanent residence. You should learn it as a whole expression.

So while the ideas are related, trvalý pobyt is the standard official phrase here, not trvalé bydliště in this exact wording.

Změnit is perfective.

Its imperfective partner is:

• měnit = to be changing / to change repeatedly / to change in process
• změnit = to change, complete the change

In official instructions like this, Czech often uses the perfective infinitive because the idea is a completed action:

• lze změnit = it is possible to make the change

This focuses on the result: the permanent residence can be changed.

Yes. That would also be correct.

Czech word order is relatively flexible. The original sentence:

• Trvalý pobyt lze změnit na ohlašovně.

starts with the thing being discussed, trvalý pobyt.

The alternative:

• Na ohlašovně lze změnit trvalý pobyt.

starts with the location.

Both are grammatical. The difference is mostly about emphasis and information structure, not basic meaning.

Yes, it is quite formal and typical of official notices, government websites, and administrative instructions.

The formal feel comes from things like:

• lze instead of a more everyday verb form
• the bureaucratic noun ohlašovna
• the official term trvalý pobyt

In everyday conversation, someone might say something more direct, for example:

• Trvalý pobyt si můžete změnit na úřadě.

But the original sentence is very natural in official Czech.

A careful pronunciation would be roughly:

TR-va-lee PO-bit lze ZM-nyit na oh-LA-shov-nye

A few useful pronunciation notes:

• trvalý: the ý is a long vowel
• pobyt: y is not pronounced like English ee; it is closer to a short Czech i/y sound
• lze: pronounced approximately lze, with the consonants close together
• změnit: the mě sounds roughly like m-nye
• ohlašovně: š = sh, and ně sounds roughly like nye

The stress in Czech is normally on the first syllable of each word:

• TRvalý
• PObyt
• LZE
• ZMĚnit
• OHlašovně