ऑफिस उस भवन में है।

A word-by-word breakdown is:

• ऑफिस = office
• उस = that / in that contextually
• भवन = building
• में = in
• है = is

So the structure is literally:

office that building in is

which corresponds to natural English The office is in that building.

Hindi often uses a different basic word order from English.

A very common Hindi pattern is:

subject + place/location + verb

So here:

• ऑफिस = subject
• उस भवन में = location phrase, in that building
• है = is

That gives:

ऑफिस उस भवन में है।

English usually says:

The office is in that building.

Hindi usually keeps the verb until the end, which is one of the most important differences for English speakers to get used to.

This is a very common and important question.

• वह is the basic form: that/he/she
• उस is the oblique form, used when a postposition follows

In this sentence, उस is followed by भवन में as part of the phrase उस भवन में = in that building.

Hindi uses postpositions such as:

• में = in
• पर = on
• से = from/with
• को = to

When pronouns like यह and वह come before these kinds of postpositions, they usually change form:

• यह → इस
• वह → उस

So:

• वह भवन = that building
• उस भवन में = in that building

Hindi uses postpositions, not prepositions.

English uses prepositions because they come before the noun:

• in the building
• on the table
• from Delhi

Hindi usually puts these words after the noun:

• भवन में = in the building
• मेज़ पर = on the table
• दिल्ली से = from Delhi

So में means in, but it comes after the noun it belongs to.

In Hindi, many nouns take an oblique form before a postposition, but not all nouns show an obvious visible change.

For example, some masculine nouns ending in -ा do change:

• कमरा = room
• कमरे में = in the room

But भवन does not visibly change here:

• भवन = building
• भवन में = in the building

So the oblique is either the same in form, or there is no visible change in this noun. That is normal.

Hindi does not have articles like English a/an/the.

So Hindi often leaves article meaning to context.

• ऑफिस can mean office, an office, or the office
• भवन can mean building, a building, or the building

In actual use, listeners understand from context which meaning is intended.

So ऑफिस उस भवन में है naturally means The office is in that building because the context makes it definite.

भवन is correct, but it sounds somewhat formal or official in many contexts.

Depending on the situation, Hindi speakers might also say:

• बिल्डिंग = building, very common in everyday speech
• इमारत = building, also common
• भवन = building, often more formal/literary/official

So all of these can work, but they feel a little different in style.

For example:

• ऑफिस उस बिल्डिंग में है। = very natural in casual speech
• ऑफिस उस इमारत में है। = natural and common
• ऑफिस उस भवन में है। = correct, a bit more formal

It is a borrowed English word, and this is very common in modern Hindi.

Hindi often uses English loanwords, especially for modern life, business, technology, and city speech. So ऑफिस is extremely natural.

You may also hear more traditional Hindi words such as:

• कार्यालय = office, more formal
• दफ़्तर = office, very common

So these are all possible:

• ऑफिस उस भवन में है।
• दफ़्तर उस भवन में है।
• कार्यालय उस भवन में है।

They differ mostly in register and style.

Because Hindi usually places the main verb at the end of the clause.

This is one of the most basic Hindi sentence patterns.

So:

• ऑफिस = subject
• उस भवन में = location
• है = is

This final है marks the sentence as present tense and singular.

Compare:

• वह घर में है। = He/She is at home.
• किताब मेज़ पर है। = The book is on the table.
• ऑफिस उस भवन में है। = The office is in that building.

Yes. Here है is singular, matching a singular subject/location statement.

For singular subjects in the present tense, you typically use:

• है = is

For plural subjects, you use:

• हैं = are

Compare:

• ऑफिस उस भवन में है। = The office is in that building.
• ऑफिसें उस भवन में हैं। = The offices are in that building.

In everyday speech, since ऑफिस is a borrowed noun, people may avoid some less common plural forms and just rely on context, but the singular है here is perfectly straightforward.

A helpful rough pronunciation is:

office us bhavan mein hai

A slightly more careful guide:

• ऑफिस ≈ aw-fis / of-fis
• उस = us
• भवन = bha-van
  
  • भ is an aspirated b sound
• में = mein / mayn with a nasalized vowel
• है = hai (like high, but often shorter and lighter in connected speech)

So the whole sentence is roughly:

aw-fis us bha-van mein hai

Yes, absolutely. That is very natural in everyday Hindi.

In fact, many speakers would find बिल्डिंग more conversational than भवन.

These are all correct:

• ऑफिस उस भवन में है।
• ऑफिस उस इमारत में है।
• ऑफिस उस बिल्डिंग में है।

The differences are mainly about style:

• भवन = more formal
• इमारत = neutral/common
• बिल्डिंग = casual and very common in urban speech

Yes, grammatically it could, because Hindi has no article system like English a/an/the.

But in normal context, ऑफिस उस भवन में है will usually be understood as The office is in that building or The office is located in that building.

If you especially wanted to emphasize one office / an office, Hindi would usually rely on context or add something else, such as एक in the right situation.

So the sentence is flexible, but the most natural translation in many contexts is The office is in that building.