Here is a CBC article entitled "Architects say city hall has big role in building a beautiful Halifax":
http://www.cbc.ca/news/canada/nova-scotia/halifax-architecture-by-design-1.3794513
I thought it sounded promising but then when I read it there was almost no content on what makes buildings or neighbourhoods beautiful except comments that seem to suggest that 80% or more of beauty really comes down to low density and consistency of building heights.
The main tenets of urban design as described in the article are:
1 - Values of scale. Make sure the new stuff is like the old stuff in terms of scale. Presumably only small buildings built before WWII count when determining the optimal scale of a neighbourhood.
2 - Community character, i.e. make sure nothing is too densely built up. See (1).
3 - Neighbourhood livability. Example: make sure that new stuff isn't too large, or it will hurt livability. See (1).
They really drive the point home with a comment in the end that says that if you don't get this scale issue right you can dress up a building all you like but it's still a "sow's ear". People who like the Eiffel Tower or Chrysler Building have actually been fooled all these years; they are just not sophisticated to see those buildings as the ugly livability-sappers they truly are.
Is this really what the architects say or do the CBC reporters choose only to report on the scale issue? A charitable interpretation is that the architects interviewed actually did share a lot more useful wisdom but that it was pruned out by the writer of the article since it didn't tie in with the desired anti-density message.
If continuity of scale is so important then why do people like to live in neighbourhoods like Greenwich Village, New York, which has a mix of 2-4 storey lowrise buildings combined with heritage highrises that runs the full gamut of heights that you find in Halifax (and then some probably), and which has a much higher overall density than anywhere in Halifax?
Similarly ultra-liveable urban planning paradise Copenhagen has a mix of 4-6 storey buildings which are much denser than Halifax. If we were to transplant an optimally-planned Copenhagen neighbourhood there to Halifax would it turn out to be a terrible mistake because it would abut some smaller houses?
Does livability even have a an objective meaning? It seems like a code word for "whatever privileged property owners want".