The Promises and Limitations of Modular Housing

Converted shipping containers offer the promise of fast construction and low costs, but face regulatory and accessibility challenges.

1 minute read

November 23, 2023, 7:00 AM PST

By Diana Ionescu @aworkoffiction


Rendering of three-story shipping container modular building for affordable housing in Watts, Los Angeles.

Rendering of Watts Works complex in Los Angeles, California. | Watts Works / Modular housing

A Los Angeles affordable housing project offers a model for using modular shipping containers to build low-cost housing units, but also highlights the challenges faced by builders using unconventional materials and methods.

As Sam Lubell explains in Metropolis Magazine, the project, called Watts Works, features 24 studio housing units and a manager’s apartment. “The complex also includes a community room, laundry room, service provider offices, and bicycle parking, not to mention a tranquil rear patio and a sunny rooftop deck.”

The project’s builder says the unconventional methods cost 10 to 15 percent less than traditional materials. However, bureaucratic hurdles made the project take longer than expected.

Modular building using shipping containers is not a new concept. From temporary shelters to as-yet-unbuilt architectural trophies, the versatile, durable containers offer tempting advantages over conventional building materials. Earlier this year, the city of Phoenix opened a modular shelter unit at the Washington Relief Center equipped with private, air-conditioned rooms that can sleep up to 20 people.

Tuesday, November 21, 2023 in Metropolis Mag

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 10, 2025 - Diana Ionescu

Converted garage to housing unit in London, UK.

Grand Rapids Mayor Proposes Garage Conversion Plan

The mayor says allowing homeowners to convert garages to dwelling units could alleviate the city’s housing shortage.

1 hour ago - Fox 17

Curb cut at corner of sidewalk with yellow panel with bumps to indicate wheelchair ramp.

Baltimore Ordered to Improve Sidewalk Accessibility

The city is one of many to face lawsuits for failing to comply with the Americans with Disabilities Act.

2 hours ago - Smart Cities Dive

Aerial view of Brampton, Ontario, Canada.

This Toronto Suburb Has More Bus Riders Than Columbus, Ohio

Brampton, Ontario used gradual improvements in service to prove that if you build it, they will ride.

3 hours ago - Bloomberg CityLab