Accessory Dwelling Units Gain Legislative Momentum in Denver

Accessory dwelling units, also known as granny flats or mother-in-law units, gained a critical foothold in Denver earlier this month, and the Denver City Council is already maneuvering for more.

1 minute read

November 30, 2020, 11:00 AM PST

By James Brasuell @CasualBrasuell


Accessory Dwelling Unit

PhotoMavenStock / Shutterstock

"After one Denver City councilwoman got an entire neighborhood rezoned to encourage more accessory dwelling units there, others on council are looking to follow suit on the city’s east side," reports Conrad Swanson.

The current movement toward legalized accessory dwelling units could be a step toward a blanket reform of the city's zoning code, according to Swanson. The city's most recent comprehensive plan, Blueprint Denver, prioritized a citywide change to allow accessory dwelling units on residential properties.

About 1,400 homes in the Chaffee Park neighborhood, represented by Councilmember Amanda P. Sandoval, were rezoned to allow accessory dwelling units earlier in November. About 20 percent of the single-family properties are zoned to allow ADUs, according to Swanson, but councilmembers are seeking to also make it easier, and cheaper, to work through the approvals process for an ADU as an incentive for more ADUs to be added to the city's residential building stock.

Saturday, November 28, 2020 in The Denver Post

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