I grew up in northeastern China, in a brick house where we burned wood to stay warm in winter. Then we moved to a five-story walk-up in Zhejiang. Then farther south, to a modern apartment. On visits to my grandparents in Shaoxing, I would stay in a traditional courtyard compound -- low roofs, one or two stories, a well in the yard, a tree, neighbors sitting under their eaves washing vegetables and talking. I could hear my grandfather coming home from the market before I could see him, because he stopped to greet every neighbor along the lane. Then Shanghai. Then Harvard. Then a high-rise condo in New York where eight floors of Chinese graduate students formed a WeChat group and collectively never had to leave the building -- Rem Koolhaas's Delirious New York made literal. And now Mott Haven, a four-story rowhouse, second floor, roof terrace above, street below, Puerto Rican neighbors playing music loud enough that I don't feel guilty about practicing violin.
I am telling you all of this because Stefan Al does the same thing throughout this book, and it works. He grew up in a Dutch row house with no air-conditioning, where thick brick walls and cross-ventilation did the work. He studied in Delft in a building where the communal kitchen layout -- not any rule or program -- somehow turned roommates into a community. He lived in Hong Kong's vertical labyrinth for three years and could feel the compression of it in his body. He designed housing in Shenzhen and wandered its urban villages where "handshake houses" stood so close together that neighbors could literally reach across their windows. These personal anchors are what keeps the book from becoming a survey. They are the thread that stitches five thousand years of shelter into something you actually feel.
The book gave me this quality repeatedly: I would be reading along and suddenly encounter a precedent I had never known, and it would reframe something I thought I already understood. The Natufian pit houses, for instance. The Natufians dug down into the earth and used the ground itself as their walls, only needing to build a roof above. No masonry skill required, no material to quarry or fire or carry. The earth did the structural work. What struck me reading Al's description was not just the ingenuity of it, but the universality -- I dimly remembered from Chinese history class that ancient pit dwellings appear in the archaeological record across China too, the same solution arrived at independently on the other side of the world. Al has a gift for this kind of narration. He doesn't just present the precedent; he helps you understand the logic behind it, why it was inevitable given the constraints, why it was brilliant precisely because it worked with what was already there.
Then there is Çatalhöyük, the Neolithic settlement in what is now Turkey. Houses were built wall-to-wall with no streets between them. No roads, no ground-level entrances. People moved across rooftops, which functioned as the public realm, and descended into their homes through holes in the ceiling. The settlement grew like a cascading terrace, each house slightly higher than the last. I had never encountered this before. It is the kind of precedent that makes you stop and put the book down for a moment, not because it is shocking but because it is so completely coherent -- a working city, a real neighborhood, organized by a logic so different from anything we assume today that it quietly dismantles those assumptions. This happened to me several times while reading. A sentence would land and I would just sit with it.
It happened again with the chapter on the Victorian terraced row house. I want to be honest: as an architecture student trained to worship innovation and formal invention, I always found the terraced house a little beneath notice. Repetitive facades, shared party walls, anonymous streetscapes -- the kind of housing you study briefly and move past on your way to something more interesting. Richard Owens was not a name I knew. Al introduced him to me as something genuinely surprising: a speculative builder in 1880s Liverpool who anticipated the needs of harbor workers, secured a loan, designed a framework, and built. What I didn't know was that within Owens's framework, individual builders could make their own choices -- slight variations in brick, detail, fenestration -- so that the apparent unanimity of the terrace contains, on close inspection, a quiet multiplicity. The street reads as a whole. The houses are each their own.
And then the infrastructure. Each terraced house had its own individual supply of fresh water -- unheard of at the time. A flush toilet in the rear yard, while much of the population was still walking to shared public facilities. Al places these facts plainly, without fanfare, and they land hard. What I had dismissed as anonymous repetition was, in its moment, a radical act of provision. It occurs to me now that I have been looking at these buildings with the wrong eyes -- the eyes of someone trained to read elevation drawings, not the eyes of a harbor worker who had never had running water in his home before.
There is also something to be said about the aesthetics, which I have been reconsidering the longer I spend with Renaissance and classical architecture. The rhythm of a Palladian facade -- the repetition of bays, the slight variation within the module, the way the whole achieves a dignity that no single unit could claim alone -- is not so different from what a well-composed terrace does at street scale. Repetition, handled with care, is not the enemy of beauty. This is something I could not have said at twenty-two. It took years of looking at Italian buildings, and apparently also this book, to understand it.
It happened a third time with the chapter on energy and insulation -- territory I thought I already knew well. As an architect trained in the United States, I am fluent in the passive house argument: higher upfront cost, better envelope, lower operational carbon, the investment pays back over time. I believed this framework was essentially complete. Al introduced a wrinkle I had genuinely never considered. The foam insulation materials most commonly used in high-performance envelopes are oil-based. They reduce operational carbon, yes -- but their embodied carbon, the carbon locked into their manufacture before the building is ever occupied, is substantial. The ledger looks different when you account for the whole life of the material, not just what happens after the thermostat is set.
Then he goes further. Passive house standards are calibrated to current climate conditions. But the climate is not static. A building envelope designed today for thermal comfort in a temperate zone may be overheating its occupants in thirty years as baseline temperatures rise. We are designing for a world that is already leaving us. I had to put the book down again.
And then the most counterintuitive finding of all: research suggesting that a perfectly constant indoor temperature may not actually be what human beings find most comfortable. Bodies are adaptive. People who experience mild temperature variation throughout the day -- the slight cool of morning, the warmth of afternoon -- may report higher overall comfort than those held at a fixed setpoint. The sealed, mechanically stabilized interior, the pinnacle of modern environmental control, might be solving a problem our nervous systems were never asking it to solve. I have been thinking about this ever since. I grew up in houses without thermostats, and I was never uncomfortable in the way that this logic would predict. Maybe I was just adapting. Maybe that was the point.
The book also has the ability to make familiar ideas feel new again. I have heard about recycling and reuse in architecture for my entire professional life. It has become almost a background hum -- virtuous, correct, a little abstract. And then Al introduces the Wikado playground in Rotterdam, designed by the Dutch firm Superuse Studios. They took decommissioned wind turbine blades -- enormous, curved, hollow -- and arranged them as a children's playground. Kids crawl through the voids, climb the surfaces, disappear inside the blade and emerge somewhere else. I looked it up after reading about it. Staring at the images, I felt something unexpected: I wanted to be a child again, small enough to fit inside that cave-like darkness, to feel the particular thrill of a space that was made for no other reason than to be explored. That is what good reuse can do that a recycling diagram never quite captures -- it can be joyful. It can be stranger and more alive than something designed from scratch.
Al is equally sharp at complicating other received narratives. The Frankfurt Kitchen, modernism's beloved icon of domestic efficiency, may have quietly entrenched the very gender roles it claimed to dissolve by optimizing a space for one person working in isolation. Brasília, designed to be a city without slums, inadvertently produced slums the moment it was built, because no one had planned housing for the workers who constructed it. Laugier's famous "primitive hut" theory, which shaped architectural thinking for generations, was essentially a projection of classical Greek aesthetics backward onto prehistory. Al has the instinct to follow the thing that doesn't fit, and that instinct produces the book's best pages.
The Shenzhen section hit differently for me because I am currently working on a high-rise project there, thinking daily about what density does and doesn't do for people. Al makes the case that Hong Kong's towers -- often criticized for erasing individuality and isolating residents -- are precisely what makes its transit system viable, its land use efficient, its carbon footprint per capita among the lowest in the world. The towers are not the problem. The question is whether they are orchestrated, whether transit and ground-level life and interior design are working together. This is not a new argument, but he makes it with the credibility of someone who has actually lived inside that system and felt its tradeoffs in his body.
When the book turns to sustainable architecture in its final chapters, my first instinct was the familiar one: everyone is talking about this, what is actually new here? But then I found myself reading with different eyes, because the week before I had taken a day trip to Baltimore to visit BIG's Bloomberg Student Center at Johns Hopkins -- a mass timber building I had first encountered in an issue of Arquitectura Viva, which featured three significant wood buildings by major architects recently completed in the United States. Standing inside that building, I felt something I hadn't expected. The warmth of the material wasn't decorative -- it was structural, literal, present in a way that concrete and glass never quite are. Greywater collected from the roof feeds the indoor plants. There are no air conditioning ducts because heat rises from the floor and light pours in from above. And if you let yourself think forward a hundred or two hundred years, to the moment when that building eventually comes down, the wood can go back. It has somewhere to go. That is a different relationship to time than most of what we build today.
Al frames this with a fact that stopped me cold. The total mass of all ants on Earth exceeds the total mass of all humans. And yet ants have no ecosystem crisis. They have been building, tunneling, cultivating, farming other insects, managing waste and temperature and ventilation for hundreds of millions of years -- and the world is not worse for it. Wherever humans go, we tend to leave damage behind. The question the book quietly poses, and that the Bloomberg Student Center quietly answers, is whether that has to be permanent. Whether we can learn, as Al puts it, to build the way nature builds -- with materials that know where they are going when their time is done.
Reading this book did not overturn anything I believe about architecture. It did not introduce a theory I had never encountered or make an argument that felt completely foreign. What it did was something harder to name and more valuable: it talked to me the way a good friend does, one who is more knowledgeable but never condescending, who somehow helps you see the connections between things you already knew but hadn't placed together. By the time I finished, I had reviewed my own life inside its pages -- the brick house in the northeast, the courtyard in Shaoxing, the high-rise in Manhattan, the rowhouse in the Bronx, the mass timber building in Baltimore -- and found that they were all part of the same long story. The story of people trying to figure out how to live on this earth without ruining it. We have been at this for two million years. We are still learning.