General Urban Waterloo Updates and Rumours

[Watdot]

70 King North is the old post office and 37/39/41 King North is the old-old post office, right?

For anyone alive this would hold true.  There were even more older post offices in Waterloo.
35 King St N - 1912 to 1964
70 King St N - 1964 to 2014(?)

Flash from the Past: Tracking Waterloo’s mail

Let's track Waterloo's post office sites. Snyder's store was on the east side of King, adjacent to the hotel at King and Erb. In 1870, Daniel constructed a block of buildings behind today's Bank of Montreal and Kumpf moved the post office there. Kumpf built his own red brick block on the northwest corner of King and Erb and soon the post office moved again. That third post office site was short-lived, shuffling slightly west to the building shown here.

This fourth post office location served until 1910, when Waterloo North MP William Lyon Mackenzie King arranged for federal postal authorities to erect a post office Waterloo could take pride in. Chief federal architect David Ewing, famed for his post office towers, designed a red sandstone structure at King and Duke (now Dupont). However, the still-standing building was only a post office from 1912 until 1964 — site number five.

At the corner of King North and Laurel (now Bridgeport Road) a modern, single storey-facility for the rapidly-growing city became site six.