Looking on the internet deeply has found these results:

is across the street from the is the most popular phrase on the web.

is across a street from the 16,160 results on the web	is across the street from the 1662,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Which is right across the street from the ceremony, which his brother will be at. That is the restaurant across the street from Il Cantuccio. This is across the street from the entrance to the golf course the day before yesterday. This is across the street from the entrance to the golf course the day before yesterday. This sushi restaurant is across the street from me, the food is terrific... But your house is right across the street from the school. Laguna and Vista is across the street from the newspaper. Laguna and Vista is across the street from the newspaper.

is across a street from the

16,160 results on the web

is across the street from the

1662,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Which is right across the street from the ceremony, which his brother will be at.
That is the restaurant across the street from Il Cantuccio.
This is across the street from the entrance to the golf course the day before yesterday.
This is across the street from the entrance to the golf course the day before yesterday.
This sushi restaurant is across the street from me, the food is terrific...
But your house is right across the street from the school.
Laguna and Vista is across the street from the newspaper.
Laguna and Vista is across the street from the newspaper.