In contrast Wheat Ridge allows Airbnb investment properties.

Get in the attic and see if you have mold, if someone insulated over your eave vent holes, ridge vents closed, etc.

There are a few cities that allow this -- Arvada, Wheat Ridge, Northglenn, Centennial and (sometime soon) Adams County. 

Prime location at the convergence of the Appalachian Trail, Blue Ridge Parkway, Shenandoah National Park, Skyline Drive, Rt. 64, and Rt. 250, right across the street from the Blue Ridge Tunnel trail What made you interested in investing in this type of deal?

But the house has a ridge vent.

(Lakewood is one of the few cities to not allow STRs at all even in your primary residence.)The truly STR-friendly cities are Arvada, Wheat Ridge, Centennial, Northglenn, and (soon to be) Adams County.

Wheat Ridge, Arvada, Northglenn all allow short term rentals where you could at least do a short term rental with one unit of the property, and this strategy will make a great return. 

For instance, Arvada and Wheat Ridge, suburbs of Denver, both allow non-owner occupied STRs, but in Arvada each owner can have up to 3 short-term rentals, whereas in Wheat Ridge you can only have one.-- Even if you can have multiple STRs, can you have more than one STR per lot in Minneapolis?

Question is for areas such Bucktown, West Ridge, Logan Square, etc, is it ok to have a low CoC return if appreciation is most likely for the property in 10-15 years?

Oh god, Blue Ridge.