Comping a property with two small homes. No comparables

[Rhea Cordillo]

Have a property that has two houses on it. One was already there and the other was built by the seller. They are not attached. Two smaller, freestanding houses. Both very small and cannot find comps based on the square footage. How would you comp this properly? I feel like this could be very desirable for a contractor but want to provide accurate value. Thanks!