So you want to have a permanent boutique?
Find a location
This can be any store front or you can have it in home. Some towns require special use variances to operate a store in home, so consult with your local town clerk to determine if there are any extra requirements.
Set it up
You are not moving inventory like a Pop-Up Boutique, so your setup can be permanent and/or semi-permanent.
Clean and Decorate
People are more likely to return if your boutique has a welcoming charm to it. If it’s white walls with cobwebs, not so much.
How are people going to find you if you don’t advertise. Use Facebook, word of mouth, newspapers to start and then go from there. Offer incentives to get them into your shop for the first time.