Upgrade house or purchase stand alone building for biz?

[Timothy Solomon]

Hi all! 
I own multiple dermatology practices and I have the opportunity to buy the land/building of a practice I’m currently looking at. It’s a $1700 sq ft building in a super hot market, (only 7 parking spots though, but I’m working on an access agreement for the neighboring landlord). Seller is asking 2.5 mil for the property. 

At the same time, my family has grown and we REALLY want a new/nicer home for our family. Likely in the range of 4mil.   but it would be in an area that is basically guaranteed to appreciate. 

We can stay in our house for another 2 years max, but of course we want to get out asap. 

What information is needed to determine if it’s smarter to buy this business property or upgrade our house first? Unfortunately I can’t do both. I know the real estate market is at a high right now, does that also pertain to commercial buildings? Also, need to factor in interest rates rising..

Any thoughts from the community is appreciated.