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Class 3 Accessory Apartment Licenses


Montgomery County has created a new filing process for Accessory Apartments designed to streamline the licensing process, making it easier for owners to pursue this option and increase the supply of affordable housing in the County.

Class 3 Accessory Apartment licenses are now issued by the Department of Housing and Community Affairs (DHCA), Licensing and Registration Unit (L&R).  This new license type is for accessory apartments that do not have a special exception approved before May 20, 2013.

I want to rent out part of my home as an Accessory Apartment

Accessory Apartment - Application

First review the links below which describe the requirements, fees, and other important information regarding the Class 3 Accessory Apartment licensing process.

Accessory Apartment - Right for You? Fact Sheet

Accessory Apartment - Filing Fees

Accessory Apartment - Check List

Accessory Apartment - Step-by-Step Instructions

Accessory Apartment - Affidavit

Check Filing Status 


Accessory Apartments in my neighborhood

Accessory Apartment Map
Use this map app to view information about accessory apartments near your home.

Accessory Apartment Application List 

How do I file an objection to an Approved Director's Finding Report

For assistance with Class 3 Accessory Apartment questions, please contact Licensing and Registration via MC311 at 311, or (240) 777-0311

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