Should Communities Encourage, Not Stifle, Mansionization?

As cities across the country consider ways to limit teardowns and large home construction in established neighborhoods, Anthony Flint argues that communities should be flattered by "mansionization" and accommodating to this form of smart growth.

1 minute read

February 1, 2013, 11:00 AM PST

By Jonathan Nettler @nettsj


Flint has some contrarian advice for a town just north of Boston considering zoning controls or other measures to prevent "mansionization": "Don’t stand in the way. Be flattered that the market is recognizing your neighborhoods and prime locations. And most important of all, be proud that what’s happening is a form of smart growth."

He cites the potential for energy savings and multigenerational housing as two advantages of the mansionization and teardown phenomenon, but is particularly enthusiastic about the element of location. "Another way to describe the phenomenon is 'infill redevelopment.' Builders are essentially re-using an established parcel in an already developed neighborhood. That’s a far greener step than building a true McMansion out in the cornfields. It’s the essence of smart growth – build in the places already built up, and leave the greenfields of the periphery alone."

Friday, February 1, 2013 in The Atlantic Cities

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

Use Code 25for25 at checkout for 25% off an annual plan!

Redlining map of Oakland and Berkeley.

Rethinking Redlining

For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

May 15, 2025 - Alan Mallach

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.

May 14, 2025 - Diana Ionescu

Front of Walmart store with sign.

Walmart Announces Nationwide EV Charging Network

The company plans to install electric car chargers at most of its stores by 2030.

May 7, 2025 - Inc.

Regeneration of contaminated industrial land used for waste dumping, West Midlands, UK, 2006 .

EPA Awards $267 Million to Clean Up and Reuse Contaminated Sites

The EPA is investing the funds to clean up and redevelop contaminated sites nationwide, supporting economic growth, community revitalization, and environmental restoration.

May 18 - Environmental Protection

Archway made of bikes in Knoxville, Tennessee over Tennessee River.

Knoxville Dedicates $1M to New Greenway

The proposed greenway would run along North Broadway and connect to 125 miles of existing trails.

May 18 - WATE

25mph speed limit sign with digital "Your Speed" sign below it.

Philadelphia Launches ‘Speed Slots’ Traffic Calming Pilot

The project focuses on a 1.4-mile stretch of Lincoln Drive where cars frequently drive above the posted speed limit.

May 18 - WHYY