Subdivision/Development Regulations (Surveyors Click Here)

Each of these files can be viewed with Adobe Acrobat Reader, which is standard on many computers. If you do not have Acrobat Reader, you may download it for free here.


See the information below. Please use the UPDATED attachment C for your lot splits.



Checklist for Transfer

Subdivision Regulations: Amended February 9, 2006 


Construction Codes 

Construction Codes without drawings

Seneca County Conveyance Standards Updated 06-21-2023

Flood Plain Regulations

Click here for the Seneca County, City of Tiffin, City of Fostoria, and Seneca Parks 2020 Multi-Jurisdictional Plan.

Attachment C- Lot Splits Updated January 15, 2019    
Applicable to Adams and Pleasant Townships

Seneca Regional Planning Commission
71S. Washington St. Suite 1104
Tiffin, Ohio, 44883

Phone: (419)443-7936


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