A property's actual result depends far more on what an online estimate cannot see. A renovation done without a permit does not show up in public records, so an automated valuation prices the house as if the work never happened, no matter how good the finished basement or the kitchen looks in person.
Two houses of the identical type and size on the same block can sell for noticeably different amounts once documented, permitted improvements are factored in against ones that were never inspected or recorded. That gap has nothing to do with the home type and everything to do with what can be verified.
Joel Dyck's hand-reviewed valuation walks the property and checks for exactly that kind of documented improvement before setting a number. Get your hand-reviewed valuation from Joel Dyck.