Subdivision control is another way the Planning Commission can shape its community’s character. This tool is used to influence the layout of lots and streets and coordinate the construction of public infrastructure to support homes and businesses.

Public Input Form
This is your opportunity to provide comments on Rezoning, Special Permits, Mandatory Referrals, Lift/Amend Conditions, and Subdivision of Land.

Effective March 11, 2026, Hamilton County Geospatial Technology will receive staff-level plats for the City of Chattanooga, Unincorporated Hamilton County, East Ridge, Ridgeside, and the Town of Lookout Mountain exclusively through the OpenGov portals. Emailed plats will no longer be accepted for these jurisdictions. Note: OpenGov portals require at least one street address for all uploads. If you are working on a plat that lacks at least one street address, please contact Geospatial Technology to coordinate plat intake before entering the record.

RPA Plats

There are three (3) types of RPA plat reviews:

Staff Approved Plats

Any division or revision of lots less than five (5) lots with no needed variances or new public streets.   These plats do not go to the Planning Commission.
To submit for review, please fill out the Lot Subdivision
(Chattanooga) or Staff Approved Plats (Hamilton County,
East Ridge, Town of Lookout Mountain, City of

Ridgeside) form on sites linked below:

Staff Approved Plats Review times are typically 10 business days days.

Minor Plats

Subdivisions of 6-10 lots.  Requires Planning Commision approval.  Plat can be submitted as a combination Preliminary/Final Plat to the Planning Commission.

To submit please fill out the Major and Minor Subdivision Plat Review (RPA) form on sites linked below:

Hamilton County

Subdivision plat submittals are due by the third Monday of the month.

Major Plats

Subdivisions of more than 10 lots.  Requires Planning Commission approval.  Preliminary Plat and Final Plat are required to be submitted separately.

To submit please fill out the Major and Minor Subdivision Plat Review (RPA) form on sites linked below:

Hamilton County

Subdivision plat submittals are due by the third Monday of the month.

Questions? Contact the RPA at subdivision@chattanooga.gov

Application & Resources

Click on a link below.