There is a fair amount of new housing development going in along the 406. But the real boom-towns of Niagara are Stoney Creek/Beamsville along the QEW. Some decent size condo towers being built along the Lake Ontario shoreline. I get this funny feeling that the whole west end of Lake Ontario is going to have a skyline eventually!Perhaps a topic of discussion for the Urban Sprawl thread, but I wouldn't mind a concerted effort from the provincial level to concentrate some of the regional growth into Welland and Port Colborne.
Seems like a St. Catharines, Thorold/Niagara Falls, Welland, Port Colborne corridor would have potential as an urban conglomeration, but currently are not exactly brimming examples of Ontario's vibrancy as per Towered's recent tour.