Caswell Hill sits northwest of downtown on a tight grid of character homes close enough to walk into the core, and renovation quality varies house to house more than the street address does, which is exactly where an unpermitted basement conversion hides in plain sight.
A permitted secondary suite needs a minimum ceiling height, proper egress windows and, in many cases, a separate entrance before the City of Saskatoon will sign off, and a lender will only count the income once that file exists. An unpermitted suite can look identical and still be worth close to nothing on paper.
Joel Dyck confirms the permit status of any Caswell Hill income unit before pricing it and compares it against sales of similarly legal suites rather than a general per-suite estimate. Get your hand-reviewed valuation from Joel Dyck.