"Small in area" or "having a small area" are both phrases that can be used to describe a place or object that is not very large in terms of its size or coverage. For example:

"The apartment we looked at was small in area, but it had a great location."
"The park we visited was quite small, with a playground that was having a small area."

Another way to describe a place or object that is not very large in size is to say that it is "compact" or "tightly packed." For example:

"The city center was compact, with everything we needed within walking distance."
"The car was small and compact, making it easy to park in tight spaces."