Learn Hardcore Korean: sikdangeun eunhaeng oreunjjoge isseoyo. - The restaurant is to the right of the bank.

은 is the topic marker in Korean. It tells the listener “as for the restaurant.” If you used 이/가, you’d be marking 식당 as the subject in a neutral or newly introduced way. Using 은 puts 식당 into focus as the known topic of conversation.

Could I say 식당이 은행 오른쪽에 있어요 instead?

Yes, you can. Using 이 instead of 은 makes 식당 feel like new or contrastive information.

식당은 은행 오른쪽에 있어요 = As for the restaurant, it’s to the right of the bank. (Topic)
식당이 은행 오른쪽에 있어요 = The restaurant is to the right of the bank. (Subject, more neutral or introducing it)

What does the 에 after 오른쪽 mean here?

The particle 에 marks a static location (where something exists).

오른쪽 = right side
오른쪽에 있어요 = is located on the right side
When you talk about existence or location of something, you use 에 after the place.

Why is there no particle between 은행 and 오른쪽?

In Korean, when one noun modifies another like “bank’s right side,” you simply place them together: 은행 오른쪽. There is an implied genitive (’s) relationship, so you don’t need an extra particle. Then you add 에 to the whole phrase: 은행 오른쪽에.

Can I replace 오른쪽 with 오른편, and do they mean the same?

오른쪽 and 오른편 both mean “right side,” but:

오른쪽 is more common in daily speech.
오른편 is slightly more formal or bookish.
Either works: 식당은 은행 오른편에 있어요 is correct but sounds a bit more formal.

Why do we use 있어요 for location, and could we say 있습니다 instead?

있다 means “to exist” or “to be located at.”

있어요 is polite informal (used in conversation).
있습니다 is polite formal (used in formal contexts or announcements).
You can switch them based on the level of formality you need.

What’s the typical word order for a location sentence like this?

The basic pattern is:

Topic/subject +
Location phrase (with 에) +
Verb (e.g., 있다)
So you get: 식당은 (topic) 은행 오른쪽에 (location) 있어요 (verb).