Proceed w/ purchase despite planning commission concern?

[Missy Longshore]

Hi! My boyfriend is under contract for this property in Forestville, CA: https://www.redfin.com/CA/Forestville/6530-Covey-R... 6530 Covey Road in Forestville, CA in Sonoma County, California - wine country or the greater San Francisco Bay Area. Today he visited the planning commission and while they agreed it's a commercial property (he would live on the top floor and run a store in the bottom half), the person he spoke with at the office said there's a concern that there's not enough parking. As you can see, the lot is just a gravel lot with space for 3 to 5 cars. He's really torn about whether to proceed - the planning commission would not give him a firm yes or no - they said there may need to be a public hearing but of course they wouldn't be able to say anything for sure without him going through with the purchase and submitting full plans. Thanks for any advice/input/thoughts/etc! 

PS. One option is to go back to the seller and say this could hurt the resale price and to ask them to lower the selling price. Thoughts?