Converted three bedroom house. Using kitchen as conference room, living room as front office, dining room as private office and three bedrooms have 1 to three desks.
Tonight.....you lie and bed and move everything in your head....When you wake up in the morning, you will know exactly what to do.
If you convert the conference room to an office, that gives you four offices. Assume you still need DR as your private office. LR as front office is likely a good size; maybe it’s possible to relocate an office there.
I’m thinking split everyone up for maximum space between wordspaces. If you can’t do that sufficiently, you might add a second shift to give them each more space. Minimal contact between employees. I’d make each responsible for wiping down their areas, phones and keyboards. Wear masks if possible.
The coffee area and restroom are likely your biggest issues. I’d keep wipes stocked in those areas. Likely enough people will wipe things down before touching that it won’t be a problem. And I hope it goes without saying but you might want to post Wash Your Hands signs as a constant reminder.
You might want to limit public coming in or at least contain them within a limited space.
You’re a good boss to be thinking of this and I wish you all the best going forward!