Lido Motel as Gracie & Mark's Motel
The two of them consummate their relationship and eventually Bonnie finds Gracie.
“Formalized, Complex, and Costly” Filming Locations
Sarah and Art team up to find Mark, Alison and Donnie start up their drug business, and Cosima pokes at Seth’s brain.
Orphan Black episode “Formalized, Complex, and Costly” was filmed in Toronto in Canada.
Woodbine Park as Path by Lake
Alison and Donnie let Vera know that they have taken over Ramone's business.
Alley (south of Kintyre, west of Grant) as Alexis's Work
Art and Sarah talk to the former Prolethian midwife Alexis about where Gracie and Mark might be.
Ted's Restaurant as Diner
Sarah has lunch with Art before he heads back into town and then encounters Gracie.
Farm off Gordon Murison Lane as Willard Finch's Farm
Gracie gets a box of samples her father left in deposit with an old family friend and later Sarah and Art question that same farmer about Mark.
Brick House (Black Creek Pioneer Village) as Jonah Appleyard's House
Alexis visits Bonnie Johanssen to tell her about Sarah looking for Gracie.
Source: Orphan Black — Wikia