Long thread warning:
Let's talk about this video's claim that we can "modernize City Hall's planning policies" and have "housing choice" while "stand[ing] up for single family zoning."
#YYCPlan #YYCVote
First, here's Calgary's R-1 zoning. In most of town (in orange), you can only build detached homes without Council approving a land use change. Our default doesn't allow much housing choice.

Now, let's talk about the ratio between the improvement (building) value and land value. A map of Calgary showing the lots on which only a detached h
For example, most people don't buy a lot for $5 and build a granite building or buy a lot for $1M and put up a tent. When the land is worth considerably more than the building, most people will change the building. R-1 zoning restricts their options.
strongtowns.org/journal/2017/6… A diagram of redevelopment feedback loop with a y-axis of mo
Detached houses are great but not allowing change prevents feedback and distorts markets.

In redeveloping areas, R-1 zoning is McMansion zoning. In practice, "standing up for single family zoning" protects detached houses for people who can outbid others.
strongtowns.org/journal/2019/7…
Yes, letting people do more with their land could make the land worth more. In places near jobs, transit, and amenities, R-1 zoning can artificially lower land prices while keeping house prices high. This is another way R-1 zoning can distort markets.
As an aside, this tightly wound, highly protective zoning benefits people who already own land and big developers who have the time and money to go through the rezoning process. It encourages the kind of lobbying that seems the opposite of transparency.
strongtowns.org/journal/2020/2…
So, how have other North American cities decided to "modernize City Hall's planning policies" and ensure "housing choice?"

In short: they allow more housing. This is the opposite of protecting detached houses.
In 2018, Minneapolis allowed up to triplexes everywhere.
strongtowns.org/journal/2018/1…
In 2020, Portland allowed up to four homes on almost any lot, or up to six homes for price-regulated projects.
sightline.org/2020/08/11/on-…
This piece suggests lessons from what housing options are financially viable in Portland:
On most urban lots, legalizing smallplexes would mean nothing at all for many years.
The best way to make an infill project work is to avoid demolition.
sightline.org/2021/08/01/we-…
In 2021, Sacramento allowed up to at least fourplexes everywhere and removed parking minimums.
strongtowns.org/journal/2021/1…
If those sound like places full of dirty hippies, let's turn to Texas. Over twenty years ago, Houston lowered minimum lots sizes.

A century ago, people in Calgary built houses on smaller lots. We could allow them to do that again.
planetizen.com/blogs/109955-h…
South of the border, there appears to be a conservative case for ending single-family zoning.
theamericanconservative.com/urbs/its-time-…
This week, realtors in Ontario called on the province to end "exclusionary single-family zoning rules in high-demand areas" because "outdated zoning laws ... drive up costs of homes or drive away affordable homes in a neighbourhood entirely."
orea.com/News-and-Event…
Here in Alberta, three recently updated planning policies allow housing choices by letting people build more houses:

In December 2018, Edmonton unanimously permitted duplexes and semi-detached homes as-of-right.
edmontonjournal.com/news/local-new…
In December 2020, Drumheller updated its land use bylaw. Rowhouses are allowed anywhere in the city.
landplanning.drumheller.ca
In June 2021, Okotoks updated its land use bylaw and reduced "the number of land use districts from 33 to nine more inclusive, flexible districts that allow for greater ability to adapt to market changes."
Like Drumheller, rowhouses are allowed everywhere.
okotoks.ca/your-governmen…
So, it appears that modern planning policies allow housing choices by letting people build more houses.

We could have abundant, family-sized homes. We can work to keep house prices linked to local wages. The first step is allowing those houses.
sightline.org/2017/09/21/yes…
Letting people do more with land that's in the city could help us get more value out of our existing infrastructure. This could help our municipal finances.

Rough math says we should spend or save ~$3B/yr to replace what we already own. We don't do that.
strongtowns.org/journal/2021/2…
I want to elect people who are honest, wise, and good.

This candidate appears to fall short of that standard.

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More from @n_hawryluk

5 Dec 20
This happens if you build more infrastructure than you can maintain and don't do the math to see how you'll replace it at the end of its life cycle.

Let's do some back of envelope math:
As of 1 Jan 2017, Calgary had $84.7B in infrastructure.
#yycplan
1/18
calgary.ca/content/dam/ww…
On 1 July 2016, Calgary's total assessed property value was $303B ($210B for res, $93B for non-res).
On 1 July 2017, Calgary's total assessed property value was $311B.
2/18
newsroom.calgary.ca/2017-property-…
newsroom.calgary.ca/news-release-2…
What's the ratio between our assessed value (private investment) and our infrastructure (public investment)?

Whether you use the values from six months before the infrastructure's assessed date ($303B), six months after ($311B), or an average ($307B), it's around 3.6:1.
3/18
Read 19 tweets
1 Apr 20
"How productive a community is in utilizing [land] has a direct bearing on the community's wealth and its capacity to endure."
@clmarohn in @StrongTowns, pg. 139.

Here is Calgary's neighbourhoods' productivity (based on 2020 assessed value/km2), sorted alphabetically.
#yycplan
Here is Calgary's neighbourhoods' productivity sorted by total productivity (highest to lowest). I find this far more interesting than Avenue Magazine's annual ranking of neighbourhoods.
If you want to know about the process, @Chealion sent me a spreadsheet with each neighbourhood's area (thanks!). A friend put this data set in python to add up the value of each property in each community. I combined the two.
data.calgary.ca/dataset/2020-A…
Read 14 tweets

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