Controversial ADU Allowances Approved in Maryland

Spirited protests weren't enough to stop the Montgomery County Council from allowing accessory dwelling units (ADU) in parts of the county.

1 minute read

July 23, 2019, 12:00 PM PDT

By James Brasuell @CasualBrasuell


Montgomery County

Nicole S Glass / Shutterstock

"The Montgomery County Council on Tuesday unanimously passed a zoning change allowing accessory dwelling units (ADUs), also known as in-law apartments, in three residential zones of the county," reports Dan Schere.

"The zoning change will allow the apartments as attached and detached structures in zones where the minimum lot size is 6,000 to 20,000 square feet," adds Schere. "Attached ADUs must be limited to 10% of the lot area and less than 1,200 square feet. Detached ADUs must be less than 1,200 square feet except when occupying a basement."

County Planning Director Gwen Wright is quoted in the article saying the county could expect the development of about 100 ADUs per year.

The zoning change proposal sparked controversy and even protests on its way to approval. Rebecca Tan reported the day before the council approval about protestors wielding hand-made signs marching into the Montgomery County Council headquarters. County Executive Marc Elrich opposed the bill, too, "on the grounds that it would lead to increased traffic in neighborhoods and school crowding and cause aesthetic problems related to increased storm water runoff."

Tuesday, July 23, 2019 in Bethesda Magazine

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

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

July 2, 2025 - Mother Jones

Close-up of park ranger in green jacket and khaki hat looking out at Bryce Canyon National Park red rock formations.

National Parks Layoffs Will Cause Communities to Lose Billions

Thousands of essential park workers were laid off this week, just before the busy spring break season.

February 18, 2025 - National Parks Traveler

Paved walking path next to canal in The Woodlands, Texas with office buildings in background.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50

A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

February 19, 2025 - Greg Flisram

Screenshot of shade map of Buffalo, New York with legend.

Test News Post 1

This is a summary

0 seconds ago - 2TheAdvocate.com

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

18 minutes ago - Mother Jones

test alt text

Test News Headline 46

Test for the image on the front page.

March 5 - Cleantech blog