The reason for that walk-through is simple: an established neighbourhood accumulates decades of renovation work that City of Saskatoon assessment records do not fully reflect, and a kitchen or basement update done without a permit still adds real value a buyer will see and pay for.
Skipping that step and pricing straight off the benchmark risks leaving money on the table for a genuinely updated house, or overpricing one that has not been touched in years and will simply sit while buyers pass it over for better-presented options nearby.
The benchmark is a starting point, not the answer for a specific Buena Vista house. Get your hand-reviewed valuation from Joel Dyck.