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

Cover CM Credits, Earn Certificates, Push Your Career Forward

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.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Color-coded map of labor & delivery departments and losses in United States.

The States Losing Rural Delivery Rooms at an Alarming Pace

In some states, as few as 9% of rural hospitals still deliver babies. As a result, rising pre-term births, no adequate pre-term care and harrowing close calls are a growing reality.

5 hours ago - Maine Morning Star

Street scene in Kathmandu, Nepal with yellow minibuses and other traffic.

The Small South Asian Republic Going all in on EVs

Thanks to one simple policy change less than five years ago, 65% of new cars in this Himalayan country are now electric.

7 hours ago - Fast Company

Bike lane in Washington D.C. protected by low concrete barriers.

DC Backpedals on Bike Lane Protection, Swaps Barriers for Paint

Citing aesthetic concerns, the city is removing the concrete barriers and flexposts that once separated Arizona Avenue cyclists from motor vehicles.

June 15 - The Washington Post