I've stumbled upon this file on my computer, it's from a couple of years ago when I was trying to create maps using Flash 5.

This is a collection of several structures, some combinations of them, and some coloring options for them.
They're not too detailed, but should look great if you compose a big picture and zoom out.

Included are:
- 20 large town houses
- 8 small village houses
- 13 market stands
- some models of gothic columns and support beams
- a gothic tower (church tower?)

(all are done from 2 different angles with horizontal reverse)

here is a screenshot i took:
Click image for larger version. 

Name:	isometric_tiles.jpg 
Views:	1300 
Size:	128.1 KB 
ID:	31004

and here is the actual file:

I hope someone finds this useful! :-]