Why don't folks take refused projects to the Board? I'd imagine absorption also has something to do with it, but the University probably fuels that pretty healthily, no?
Developers do take most of the refused projects in Waterloo to the OLT and some have come out with height increases, others are just sitting there slowly working their way through the system. There's all sorts of projects in the University area but there all student housing but they do tend to get built, just developers don't bother asking for height increases because they know the city is just going to say no and then the whole OLT process will start.
Waterloo wants to keep the "small town" feel of Uptown Waterloo so anything that's been proposed there has just sat (Strata (proposed 2018), 87 Regina (proposed 2017), Dorset/Princess (proposed 2018), 42 Erb (proposed 2018)). There is nothing that's even progressing through the permit process.
Kitchener on the other hand really doesn't want that, much of council wants development to occur (except Chapman, she's councils resident NIMBY), the oldest proposed project in the downtown core was first proposed in 2019 (149 Ontario) the other projects proposed that year have now either been built or getting permits (The Metz), even projects which were proposed later are under construction (TEK Tower, 926 King W). Then you have other projects proposed later getting permits, 88 Queen, 206 Duke, 926 King St E, 197 Frederick, and Station Park D are getting balance of construction, 459 Mill, 787 King E, 332 Charles, 1001 King E all are getting demolition permits.
There's a few developers who have fully given up on Waterloo.