It's Private land, so you are not looking for road signs. Merely the terms and conditions.
It's a bit odd that the road naming sign looks to me like an authority one. It's far from obvious it's Private land. Though the paving is a modest clue.
Province Dr
https://maps.app.goo.gl/oSNfype9AvRjwYmg8?g_st=acThe sign, which they will claim was blindingly obvious and sufficient is above. Though GSV is a bit old so may not be current.
A driver parking as this one did may not even have gone that far.
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From the Aug 22 view it looks as though the driver was parked just before a barrier which is lowered in a GSV photograph and opposite a small no parking sign on a building wall (which is not offering any contract and is no more than a request anyway).
The woeful signage etc may become relevant later.
From: 46 Surrey Quays Rd
https://maps.app.goo.gl/AxqWBoJG8bHR7eSy9?g_st=ac