Any discussion of trailer parks should start with the fact that most forms of low-income housing have been criminalized in nearly every major US city. Beginning in the 1920s, urban policymakers and planners started banning what they deemed as low-quality housing, including boarding houses, residential hotels, and low-quality apartments.
The whole piece is excellent. Watch an old movie about the 1920s or 1930s and you'll often see boarding houses. I had always assumed that the reason was a decline in demand. I'm sure that was a major factor as people got wealthier. But this piece reminds us that there was regulation against supply also.
In light of the United States' century-long war on low-income housing, it's something of a miracle that trailer parks survive. With an aftermarket trailer, trailer payments and park rent combined average around the remarkably low rents of $300 to $500. Even the typical new manufactured home, with combined trailer payments and park rent, costs around $700 to $1,000 a month. Both options offer a decent standard of living at far less than rents for apartments of comparable size in many cities. The savings with manufactured housing are a big part of the story: where the average manufactured house costs $64,000, the average site-built single-family house now costs $324,000. The savings don't come out of shoddy construction either: manufactured homes are increasingly energy efficient, and their manufacturing process produces less waste than traditional site-built construction. With prosperous cities increasingly turning into playgrounds of the rich due to onerous housing supply restrictions, we shouldn't take these startlingly affordable rents lightly.
Besides revealing a natural acceptance of traditional urban design, trailer parks also illustrate the capacity for low-income communities to engage in private governance. Compared to many low-income neighborhoods, trailer parks are often fairly clean and relatively safe. How could this be? The answer lies in the exchange at the heart of a trailer park: a trailer owner pays rent not only for a slice of land in an apparently desirable location but also for a kind of club good known as "private governance." Edward Stringham describes the concept as "the various forms of private enforcement, self-governance, or self-regulation among private groups or individuals that fill a void that government enforcement cannot."