It was / is in Paris that she was brought up.
It was / is in this house that he lived.
Both of you sentences are placed in the past
she was brought up
that he lived
so using "was" would be correct.
You may be getting confused since, for example, a tour guide might say
It is in this house, that he spent his early years.
since they may be trying to emphasize the location, it is understandable, acceptable, and does get used.