Typical components
- Utility tap / impact / connection fee — set by the utility, often the largest line
- Lateral installation — plumber, by distance and obstacles
- Tank abandonment — septic contractor, pump-out plus crush/fill, permitted
- Restoration — driveway, yard, landscaping
Indian River County. The county spends $51,000 to $65,000 per property to bring a sewer hookup out to a property, funded by state grants and a county match — that part is not billed to you. Your side is $5,000–$8,000 for a gravity connection; $11,000 to $20,000+ where a grinder pump is needed (county estimate), and which of those two numbers applies depends on the elevation of your house, not on anything you choose. Add abandonment of the old tank, which needs a permit from the Florida Department of Health and an inspection afterward. The catch is availability: fewer than 1,000 of the county's 28,000 affected properties are in an existing or planned sewer service area. Check before you budget for a connection you cannot have. Sewer or an on-site upgrade?
When it beats a new drain field: if a main is at the street and the field has failed, connection is often cheaper than $5,000–$15,000; mound or elevated fields at the top of that range — and it ends the septic maintenance cycle permanently. When it doesn't: a long lateral, a lift pump because the house sits below the main, or no main within reach.