Why is Prefab Impossible to Get Built?

A new study out in JAPA this week details the fire codes, zoning codes, subdivision regulations, etc., that prevent manufactured housing from being built.

1 minute read

January 14, 2010, 12:00 PM PST

By Tim Halbur


Casey J. Dawkins and Theodore Koebel of the Metropolitan Institute at Virginia Polytechnic Institute and State University argue that manufactured housing could very useful in creating affordable housing, but the deck is stacked against it.

From JAPA: "The potential for manufactured housing to expand the affordable housing supply in metropolitan areas depends on a variety of factors, several of which planners influence. Many places adopted restrictive or exclusionary regulations because manufactured housing units were perceived to be temporary structures that could be moved from site to site and to be suitable for rural areas or trailer parks but not for city neighborhoods. Despite improvements in the quality and visual appeal of manufactured housing, restrictive land use and design regulations in urban and suburban jurisdictions limit the number of locations where manufactured housing can be placed, impose additional onsite installation standards and other design requirements that do not pertain to site-built units, and, in some cases, continue to prohibit the use of manufactured housing units altogether."

Thursday, January 14, 2010 in Journal Of The American Planning Association

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 16, 2025 - Diana Ionescu

Streetcar and bus stopped at station on Market Street in San Francisco with Ferry Building visible in background.

Waymo Gets Permission to Map SF’s Market Street

If allowed to operate on the traffic-restricted street, Waymo’s autonomous taxis would have a leg up over ride-hailing competitors — and counter the city’s efforts to grow bike and pedestrian on the thoroughfare.

April 16 - San Francisco Examiner

Parklet with wooden benches and flower boxes on street in Ireland.

Parklet Symposium Highlights the Success of Shared Spaces

Parklets got a boost during the Covid-19 pandemic, when the concept was translated to outdoor dining programs that offered restaurants a lifeline during the shutdown.

April 16 - Streetsblog San Francisco

Bronze statue of homeless man (Jesus) with head down and arm outstretched in front of St. Matthew Cathedral in Washington D.C.

Federal Homelessness Agency Places Entire Staff on Leave

The U.S. Interagency Council on Homelessness is the only federal agency dedicated to preventing and ending homelessness.

April 16 - The New York Times