Convocation Hall (U of T) as Old London Neighborhood
Sarah, Felix, and Mrs. S arrive in Mrs. S's old neighborhood.
Source: Orphan Black — Wikia
“Insolvent Phantom of Tomorrow” Filming Locations
Sarah, Felix, and Mrs. S head to London to find the Castor original, Donnie has to deal with his fight with Jason Kellerman, and Cosima begins to distrust her girlfriend.
Orphan Black episode “Insolvent Phantom of Tomorrow” was filmed in Toronto in Canada.
Sandford Fleming Building (U of T) as Near Kassov's Flat
Sarah and Felix argue about continuing the investigation.
115 Grange Crescent as Kendall Malone's Flat (exterior)
Sarah and Felix are dropped off at Kendall Malone's apartment and Sarah breaks in while Felix keeps watch.
Queen Street East (between Degrassi & McGee) as Gracie in Underpass
Gracie calls Cosima and explains how she told Castor about the book.
Simcoe Hall (U of T) as Taxi Pickup
Sarah and Felix get into the taxi sent to pick them up.
Source: Orphan Black — Wikia
Alley (north of College, east of King's College) (U of T) as London Alley
Kassov pulls over his cab and questions Sarah and Felix about why they are looking for him.
Source: Orphan Black — Wikia