Others elsewhere were smaller, many measuring 320 x 320 ft., and others again 320 x 245 ft., rather less than 2 acres.

In general, the 'insulae' on the east and west sides of the town were larger than those in the centre.

The whole has a resemblance to Autun, and is more irregular than writers on Trier are ready to allow.[107] [107] Graeven estimated that, except in the central street, all the 'insulae' measured 300 Roman ft.

(290 English ft., 88 metres), but his plan suggests rather 100 metres.

We need in reality that larger plan which he did not live to complete.
How many houses may have occupied either a large or a small 'insula' is uncertain; indeed, we know next to nothing of the private houses of Roman Trier.