4-Unit Apartment Building

This Cabarete condo building is newly completed with two 1-bedroom unit, an office and a 2-bedroom unit on the ground floor, and two 2-bedroom units on the second floor.  There is permitting completed to build a third story and plans for either a penthouse or two 2-bedroom units.  The units are already rented for $1,000/month for the 2-bedrooms, $700/month for the first 1-bedroom, and the 3rd 2-bedroom currently rents on Airbnb for $120/night.  The price amounts to $149,500/door.  Should you develop the top floor (approx cost of $150,000 for a penthouse) then the cost per condo is even less.