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Code Enforcement > Registered Living Units (RLUs)

Owners of Single Family detached homes in Montgomery County* may be permitted to create and use a second independent dwelling unit in their home for rent free use by family members or household employees. These units must be Registered with Montgomery County Department of Housing and Community Affairs, and be in compliance with the requirements of Zoning Ordinance Chapter 59-A 6.10 of the Montgomery County Code, Housing Standards Chapter 26 of the Montgomery County Code, Executive Regulations and all applicable laws.

Registered Living Units may be used for

Registered Living Units must

Owners must

*Note: RLU requirements as outlined in Zoning Ordinance Section 59-A-6.10 do not apply to properties within the incorporated municipalities of Barnesville, Brookeville, Gaithersburg, Laytonsville, Poolesville, Rockville and Washington Grove. You may wish to contact your local municipality for further information on requirements.

Registration process for creating a Registred Living Unit

To create a new RLU for rent-free use, an owner-occupant must:

  1. Complete an Affidavit of Compliance form in its entirety. Affidavit of Compliance forms may be obtained from the Department of Housing and Community Affairs.
  2. Submit the completed Affidavit of Compliance, signed by the owner to the Department of Housing and Community Affairs, along with a sketch of the apartment layout (floor plan). The Department of Housing and Community Affairs will stamp & sign the Affidavit, and provide a copy to the owner.
  3. Submit a copy of signed and stamped Affidavit, along with the floor plan to Department of Permitting Services to obtain necessary building or electrical permits.
  4. After construction is complete and the Department of Permitting Services has assured compliance with Building Standards, you must contact the Department of Housing and Community Affairs, Code Enforcement Unit at (240) 777-0311 to schedule an inspection for compliance with Housing Standards.
  5. Once compliance with the Housing Standards is achieved, a Registration Certificate will be issued by the Department of Housing and Community Affairs, Licensing/Registration Unit for your records.
  6. Please note, any changes in information provided on the original Affidavit of Compliance must be reported to the Department of Housing and Community Affairs, Licensing/Registration Unit immediately.

Registration process for existing Registered Living Unit

To register an existing RLU for rent-free use, an owner-occupant must:

  1. Complete an Affidavit of Compliance form in its entirety. Affidavit of Compliance forms may be obtained from the Department of Housing and Community Affairs.
  2. Submit the completed Affidavit of Compliance, signed by the owner to the Department of Housing and Community Affairs, along with a sketch of the apartment layout (floor plan). The Department of Housing and Community Affairs will stamp & sign the Affidavit, and provide a copy to the owner.
  3. The Department of Housing and Community Affairs, Code Enforcement Unit will contact you to schedule an inspection for compliance with Housing Standards.
  4. Once compliance with the Housing Standards is achieved, a Registration Certificate will be issued by the Department of Housing and Community Affairs’ Licensing/Registration Unit for your records.
  5. Please note, any changes in information provided on the original Affidavit of Compliance must be reported to the Department of Housing and Community Affairs, Licensing/Registration Unit immediately.