When is it necessary to upgrade a septic system for Board of Health Approval to obtain a building permit?

Any building project which will increase the design flow from a structure requires the siting and installation of a septic system sized to handle the design flow. An increase in the number of bedrooms above the number specified on the most recent septic permit automatically triggers an increase in design flow. An increase in the total room count may be allowed provided that the total room count does not exceed the maximum allowed under Title 5 Regulations. Please note that a deed restriction may be required to assure compliance with Title 5.