Book Review: A Pattern Language by Christopher Alexander

The official site of the book has summaries for the patterns here. But I like this site much better: http://www.iwritewordsgood.com/apl/set.htm (which has the complete content of the book nicely indexed!) 

Christopher Alexander invented the presentation in the book in the form of a Pattern Language (described in his book of the same name). Among other uses, it spurred the Design Pattern Language in software development (here is a link from the (now defunct) c2 Portland Pattern Repository (itself the first wiki)). 

I agree that the book is opinionated and written in a very confident tone of its findings and recommendations.

The book is overtly about architecture and design, but its secret identity is a manual for how to live a better life. 

Indeed. That is also very clear from the other book, Pattern Language, which asks the question of beauty in architecture after priming people with the question: "Which building is more alive?" I am reminded of the recent post on art by Scott Alexander, which also reasks this question (there must be a reason they share the same last name). 

The authors' lifestyle & ethos pervades the book: they have figured out what makes them happy and are trying to spread those ideas. But then they write it in this academic style -- here is the best way to build, here are the studies we ran. It seems overconfident.

The authors did their work well, though. Some architects traveled the world, built a lot of beautiful buildings, collected notes on what people felt was livable, got together, and looked for patterns. 

They consulted studies or conducted quick ones themselves e.g., in patterns 13, 21, 33, 60, 68, 82, 112, and 132 (which I found by consulting my memory and quickly looking thru the site). 

And many of the patterns are not as wacky as you think.

Some are fairly wacky: "3. city country fingers" recommends interlacing urban and countryside in "fingers"

This is precisely how a lot of green is distributed in my hometown Hamburg and what allowed my children to reach a wood kindergarten in a recreational forest in five minutes despite us living in a medium dense municipality of Rowhouses (another pattern) along Looped Local Roads. The number of Playgrounds matches Children in the City recommendations. For many years, Hamburg did have a Four-Story Limit. And from my observation, places, where these don't apply, are often less livable.

Some are incredibly specific: "22. nine percent parking"

I don't know why 9 percent, and while he doesn't cite a study in that pattern, he does give a very honest epistemic status about it: 

Very rough empirical observations lead us to believe that it is not possible to make an environment fit for human use when more than 9 per cent of it is given to parking.

Our observations are very tentative. We have yet to perform systematic studies - our observations rely on our own subjective estimates of cases where "there are too many cars" and cases where "the cars are all right." However, we have found in our preliminary observations, that different people agree to a remarkable extent about these estimates. This suggests that we are dealing with a phenomenon which, though obscure, is nonetheless substantial.

Really, for 1977 this book is incredible in how evidence-based and epistemically transparent it is.

Disclaimer: I like the book tremendously - it is in the top three books I have ever read - and mentioned it on LessWrong here [LW(p) · GW(p)], here [LW(p) · GW(p)], and here [LW(p) · GW(p)]. I have made changes to our house based on the book that turned out very well: Garden Wall, Teenage Cottage, Children's Realm, Child Cave, and probably others I forgot.

Periodically this book gets mentioned to me, and I try reading it and bounce off. I'd be interested in someone going in more detail into the parts that seem sensible/interesting/tractable for mid-level organization projects.

(concretely: the Lightcone team is working longterm on building a campus, and I expect us to be more likely to make use of a good summary of this, or a strong recommendation that the whole thing is worth reading)

(This short+sweet review makes me want to read the book.)

This review of A Pattern Language is dense and one can see the influence the book had on the poster - as it had on me. I think it is worth promoting the work on Christopher Alexander who had such a strong influence on many fields, not just architecture, but also software engineering.

I like the elements of both '3. Country Fingers' and '39. Housing Hill,' They sound cool; like they'd work well by allowing us to meet our biophilic needs, and optimise for separate spaces plus a communal hub. Thanks for sharing this delightfully opinionated read; ideas on how to build housing and encourage healthy communities seems vital.