The Cottage Court Is One of America’s Best Housing Ideas. We Forgot About It for Seventy Years.

I’ve been writing about single-stair reform and federal housing legislation for the past couple weeks. The response has been great — architects, developers, planners, policy people. That audience gets it.

But I have getting notes from a different kind of reader. Homeowners. Neighbors. People who grew up in a certain kind of place and want more of it. People who couldn’t tell you what a building code is but know exactly what they want their street to feel like.

Their question is simpler than any policy debate: “Why does everything being built near me feel so out of scale? Why can’t we just build more of the stuff that already works?”

That question has a name. It’s called the missing middle. And over the next several weeks I’m going to go deep on the building types that make up that idea — one at a time, starting with the one I think is the most underrated, most underbuilt, and most immediately possible right now, the cottage court.

First, the Bigger Idea

Before we get to the cottage court specifically, it helps to understand the problem it solves.

American housing has effectively produced two options for most of the last seventy years: the single-family house, and the large apartment complex. Everything in between — the duplex, the fourplex, the townhouse, the small walkup, the courtyard building — was systematically made illegal through zoning codes, parking minimums, setback requirements, and lot coverage rules written in an era that worshipped the car and feared the city.

The architect Daniel Parolek gave this gap a name around 2010: the missing middle. Parolek and his firm Opticos Design in Berkeley have spent the last fifteen years documenting, designing, and advocating for the building types that sit between the single-family house and the large apartment block — the types that are denser than a house but scaled like a neighborhood. The types that add households without adding bulk. The types that look like they belong on a street rather than being dropped into a parking lot.

Parolek’s framework identified a spectrum of building types — duplexes, triplexes, fourplexes, townhouses, cottage courts, courtyard apartments, small apartment buildings — each filling a different slot in the market, each capable of producing real density at a human scale. Together they represent the full range of housing that defined every great American neighborhood built before 1950. Together they represent what we stopped building when we made it illegal.

Ross Chapin is another name worth knowing here. Where Parolek named and mapped the framework, Chapin built it and proved the market existed. His 1996 Third Street Cottages on Whidbey Island in Washington — eight small homes clustered around a shared garden — sold out immediately and generated national press coverage that no one in the housing industry had expected. Planners called. Developers called. People from across the country wrote asking: where can I live somewhere like this? His book Pocket Neighborhoods became a reference text for planners, housing advocates, and architects across the country. Chapin’s work showed that people weren’t just tolerating small, community-oriented housing — they were hungry for it.

I’m going to spend the next several articles going deep on each missing middle type. The cottage court is first — because I think it makes the argument most vividly.

Density Is Not a Number

Here’s the thing I keep coming back to whenever I talk to someone who is nervous about density — a neighbor, a planning commissioner, a city council member who has watched one too many bad projects go up near their neighborhood or town.

Density is not a number. It’s an experience.

Twenty units in a single apartment block surrounded by asphalt feels overwhelming and out of place. Fifteen to twenty units arranged as small individual homes around a shared garden court — front porches facing a brick path, mature trees overhead, a fire pit where neighbors actually know each other — feels like a neighborhood. Same unit count. Completely different experience. Completely different relationship to the people who live there and the block around them. We call this gentle density.

That second option is a cottage court. And it’s one of the most powerful housing ideas America ever produced — and then forgot about for seventy years.

What a Cottage Court Actually Is

The definition is simple: a cluster of small, individual detached or semi-detached homes arranged around a shared central garden or courtyard, typically on a single lot or assembled parcels. Each unit has its own front door, its own sense of entry, its own private threshold. But the shared outdoor space belongs to everyone — and it faces the street, not a parking lot.

The key design moves that make it work:

The court itself is the heart. Not a leftover space between buildings, not a gap between parking spots. A designed outdoor room — paths, plantings, trees, places to sit — that functions as a shared front yard for everyone who lives there. It’s where children play, where neighbors meet accidentally, where the small daily moments of community happen without being manufactured.

Each unit reads as a home. From the street, a well-designed cottage court looks like a large house or a generous residential compound — not an apartment complex. The scale is domestic. The entries are individual. There’s no long corridor, no buzzer panel, no institutional lobby. You come home to your front door.

The street relationship is active. The court opens to the sidewalk — through a gate or a defined entry — so the life of the court is partially visible from the street. This is the opposite of gated community withdrawal. The cottage court engages the neighborhood even as it creates an interior world.

The units are small but complete. Cottage court units typically run 500 to 1,000 square feet. That’s not a compromise — it’s a feature. Smaller, well-designed homes on shared land cost less to build, less to heat and cool, less to maintain. They serve the one- and two-person households that make up the majority of American housing demand but are almost entirely underserved by new construction.

A Brief History — Because It Matters

The cottage court flourished in California between roughly 1910 and 1940. Los Angeles, Pasadena, Santa Barbara, Long Beach, Riverside — cities across Southern California built thousands of them during the bungalow era. Developer-built, market-rate housing, designed for working and middle-class residents who wanted the privacy of a house without the cost of a full lot.

They were beloved. They still are. The surviving examples in Pasadena and Santa Barbara are among the most sought-after addresses in their neighborhoods. Property values around them are consistently higher than comparable blocks. Residents stay for decades. The courts develop their own character — the kind of unprogrammed community life that contemporary housing developers spend millions trying to manufacture with amenity packages and community managers.

Then, in the postwar era, we made them illegal.

Minimum lot sizes made it impossible to fit multiple small units on a standard residential lot. Parking minimums demanded more asphalt than the courts could accommodate. Setback requirements pushed buildings away from each other in ways that destroyed the enclosed garden logic. Occupancy limits and use restrictions did the rest.

By 1960, the cottage court was effectively extinct as a new housing type. The surviving ones remained — grandfathered, beloved, irreplaceable — while the regulatory framework that produced them was quietly dismantled.

Opticos Design has documented this history in detail. Their missing middle research traces exactly how each regulatory layer accumulated, and exactly what it cost. It’s worth reading if you want to understand how deliberate the destruction was — and how reversible it is.

Why Right Now

The regulatory conditions that killed the cottage court are finally being reversed.

Accessory Dwelling Unit (ADU) legalization has been the most important catalyst. In most states that have legalized accessory dwelling units, the new rules inadvertently — and in some cases deliberately — opened the door to cottage court configurations. If you can build a detached ADU behind a primary residence, the logical extension is a cluster of detached units on a larger lot. Several cities have already made that explicit.

Santa Monica voted 6-0 this spring to advance a cottage court proposal — clusters of six or seven detached 850 square foot units around a shared courtyard, designed to read as a large single-family home from the street. The proposal specifically targets middle-income workers: teachers, firefighters, nurses. People who earn too much for subsidized housing and too little for market rate. That’s not a niche. That’s most of the workforce.

Sacramento’s citywide Missing Middle Strategy — developed with Opticos Design and just awarded a 2026 CNU Charter Award — explicitly legalizes cottage courts in every neighborhood citywide. The most comprehensive municipal missing middle policy in the country, with the cottage court at its center.

Greenville, South Carolina is actively exploring cottage courts and courtyard apartments as tools for gentle infill in walkable neighborhoods. The planning director is on record describing it as exactly the kind of density that fits within existing neighborhood character without overwhelming it.

The regulatory window is open. The market demand is there. The design precedent is rich and proven.

What Makes a Cottage Court Work — and What Makes It Fail

I want to be honest about this, because the cottage court is not self-executing. Bad ones exist. They fail in predictable ways.

The court becomes a parking lot. When cars are routed through or stored in the central space, the garden logic collapses. The court needs to be car-free — or nearly so — to work as a shared outdoor room. Parking on the street, at the rear via an alley, or a unit mix deliberately sized for households without two cars.

The units are too similar. The historical courts that endure are the ones with variety — slightly different plans, different orientations, different sizes. Identical units in a ring feel institutional. Varied units around a garden feel like a place that grew naturally.

The court is too private. Courts that completely withdraw from the street lose the urbanism that makes them worth building. The best cottage courts have a legible entry — a gate, an arch, a change of paving — that signals “this is a place” without walling it off. The street relationship matters.

The units are too large. Cottage courts work at cottage scale. When developers push square footage per unit, the buildings get bigger, the court gets smaller, and the whole composition loses its character. Restraint in unit size is a design decision, not a concession.

When those things are done right — car-free court, varied units, legible street entry, genuinely cottage-scaled homes — the result is something that hasn’t been widely built in America for almost a century: housing that people are genuinely glad to live in, and that their neighbors are genuinely glad to have next door.

Coming Up

This is the first in a series on the missing middle building types — the building blocks of neighborhoods that work. Parolek and Opticos have done the foundational research. Chapin proved the market. The reform wave is creating the regulatory opening. What’s needed now is architects, developers, and communities willing to build.

Next up: what it actually looks like when you build one — and what you learn when a cottage court has to hold its own against a 1920s landmark.

I’m an architect focused on traditional neighborhood design, new urbanism, and building code reform. The missing middle is at the center of our practice — I’d welcome the conversation about what it could look like in your community.