"at apartment" is not a grammatically correct phrase.
It should be "in an apartment" or "at the apartment." Example: "I am meeting my friend in an apartment near the city center."
Shirt and sweater at Apartment Number 9, Chicago.
His Curved Chair, left, is at Apartment Zero.
Ms. Grimes recalled meeting him at one of his famously lavish dinner parties at apartment at the Waldorf-Astoria.
In 1999, explosions aimed at apartment buildings killed more than 300 people.
My brother, who runs a religious nonprofit, mentors youth at apartment projects across Amarillo.
New York City, for example, is pressing manufacturers to agree to pick up at apartment buildings.
I called a broker and began looking at apartments.
Knocks went unanswered, even at apartments where the lights were on and televisions were blaring.
Trays of Wertz food arrived for weeks at apartments where there had been a death.
She looked at apartments in Manhattan and in other parts of Brooklyn, but always lost out.
I don't think I had ever seen Times Square until I was looking at apartments".
