Obračunsko mjerno mjesto je u kući.

It is mostly a technical/administrative phrase, not something you hear often in casual conversation.

In utility, billing, or metering contexts, obračunsko mjerno mjesto means something like a billing metering point or metering point used for calculation/billing.

The parts are:

• obračunsko = related to calculation, accounting, or billing
• mjerno = related to measurement
• mjesto = place, point, location

So the full phrase is a fixed technical expression, not just any random place.

Because they are both agreeing with mjesto, which is a neuter singular noun in the nominative.

In Croatian, adjectives must match the noun in:

• gender
• number
• case

Here:

• mjesto = neuter singular nominative
• obračunsko = neuter singular nominative
• mjerno = neuter singular nominative

That is why both adjectives end in -o.

Here it is an adjective, not an adverb.

A native English speaker might wonder about this because Croatian adverbs often end in -o, but in this sentence mjerno is describing the noun mjesto.

So:

• mjerno mjesto = measuring/measurement point

It is not modifying the verb je. It is part of the noun phrase.

Mjesto is a neuter noun.

That matters because Croatian grammar requires words connected to a noun, especially adjectives, to agree with it. Since mjesto is neuter singular, the adjectives also appear in neuter singular:

• obračunsko
• mjerno

If the noun were feminine or masculine, the adjective forms would change.

Because after u meaning in/inside, Croatian normally uses the locative case for location.

So:

• kuća = base form, nominative, house
• u kući = in the house

This is one of the most important patterns in Croatian:

• u + locative = location
• u + accusative = motion into something

Compare:

• u kući = in the house
• u kuću = into the house

In this sentence, kući is locative singular.

The noun is:

• kuća = house

Its relevant forms here are:

• kuća = nominative
• kući = locative/dative singular
• kuću = accusative singular

Because the sentence describes a location, u takes the locative, so you get u kući.

Je is the 3rd person singular of biti = to be, so it means is.

In Croatian, short unstressed forms like je are clitics, and clitics usually go in the second position of the clause.

So:

• Obračunsko mjerno mjesto je u kući.

This is the normal placement.

English speakers often expect the verb to behave more like English is, but Croatian clitics follow their own placement rules.

Yes. Croatian word order is more flexible than English word order.

The basic sentence is:

• Obračunsko mjerno mjesto je u kući.

But you could also say:

• U kući je obračunsko mjerno mjesto.

The core meaning stays the same, but the focus changes a bit. The version starting with u kući puts more emphasis on the location.

Croatian has no articles like English a or the.

So kuća can mean:

• a house
• the house

and the exact meaning depends on context.

The same is true for mjesto. Croatian usually expresses definiteness through context, word order, or the situation, not through articles.

This sentence contains both sounds, which English speakers often find tricky.

• č in obračunsko is a harder sound, roughly like ch in church
• ć in kući is softer and more palatal; English does not have an exact equivalent

Very roughly:

• č = harder ch
• ć = softer ty/chy sound

So:

• obračunsko has č
• kući has ć

If you are just starting, pronouncing both reasonably clearly is more important than mastering the fine distinction immediately.

Not usually in this sentence.

U kući literally means in the house or inside the house.

At home is often expressed differently in Croatian, depending on context, for example:

• kod kuće = at home

So in this sentence, u kući specifically points to the physical location inside the house, not just the general idea of being home.