3 Bed vs. 2 Bed Question

[Lianna Utley]

Hello All: I have a vacation rental in Door County Wi. It is technically a 3 bed 1 bath house. But I have only been able to rent it as a 2 bedroom as there is a city rule surrounding the septic. For whatever reason when the septic was built, it was built too small for the house only allowing 2 bedrooms to be rented (which I knew when I bought). To update it will be $15k. 

Question is -- is it worth updating knowing we only have 1 bathroom? Is 3 Bedrooms 1 bath something people are interested in? Long term goal is to add an addition which would make it a 3 bed 3 bath house but based on contractors schedules it will probably be another year. 

Also any feedback on my listing would be great. Used evolve for the first year (broke even) and am now trying my hand self managing. Airbnb Listing