The lhash is from the US Embassy Support compound which is between the embassy and the Zantel building on Old Bagamoyo road.
From town drive along Ali Hassan Mwinyi Rd as far as the ‘Morrocco’ crossroads. Turn right.
Take the first right turn (about half a kilometre along) just before the Zantel offices. The US embassy support compound is the next compound on the left.
Apparently we will NOT need full passport ID and references to be allowed in, and there is secure parking inside.