Septic Tank Installation in Ocala, FL: Cost, Permits and Timeline

Building on a lot in Marion County or need a brand-new system? One call to (352) 619-4030 connects you with a licensed local septic contractor for a free quote. This site is a referral service, not a contractor.

Who this page is for

This page is for anyone who needs a septic system where none exists today: a new home on a vacant lot, a mobile home going onto rural land, or a property where the old system has to be fully replaced with a new design. If your current tank is cracked or failing and you just need it swapped, see our septic tank replacement page instead.

Most of Marion County is not on central sewer. Away from the city core, a septic system is part of building almost every home, and it is one of the first things a lender, builder and permit office will ask about.

What a new septic installation includes

A complete installation is more than dropping in a tank. It usually covers:

1. Site evaluation. Soil borings show how fast the ground drains and how high the water table rises in the wet season. This sets the system type and the drain field size.
2. System design and permit application. The design is sized to the number of bedrooms and the home's square footage, then submitted for a construction permit.
3. Excavation and tank set. A concrete or plastic tank is set level, with risers so the lids can be reached for future pumping.
4. Drain field. Gravel and pipe or chamber trenches are laid in the approved area. On wet or tight lots this may be a raised (mound) drain field.
5. Inspection and final approval. The installed system is inspected before it is covered, then the permit is closed out.

Permits in Marion County: who issues them now

Since July 1, 2025, septic permits in Marion County are issued by the Florida Department of Environmental Protection (DEP), not the county health department. Applications go through DEP's online septic portal with a site plan and floor plan. You can use DEP's site evaluation or hire a private evaluator before you apply.

The work itself must be done by a Florida-registered septic tank contractor or a licensed plumber. Every contractor we refer is licensed for this work. Ask to see the registration number on any quote you get.

Nitrogen rules near the springs

Ocala sits between two of Florida's protected Outstanding Florida Springs: Silver Springs and Rainbow Springs. In the protected spring areas, Florida requires new septic systems on lots of one acre or less to use nitrogen-reducing treatment when sewer is not available. That can mean an in-ground nitrogen-reducing biofilter, an approved aerobic treatment unit, or another approved advanced system.

This matters for your budget. A nitrogen-reducing system costs more to build and, for aerobic units, comes with ongoing maintenance. Check your parcel on DEP's Priority Focus Area map before you buy land or price a build, and ask your contractor which system your lot needs.

What a new septic system costs

Every quote depends on your lot, so treat these as ballpark figures from national cost guides, not a price:

What pushes an Ocala-area price up or down:

• Bedrooms. More bedrooms means a bigger tank and drain field.
• Water table and soil. High seasonal water or tight clay can force a mound system. Shallow limestone can slow digging.
• Spring protection area. A nitrogen-reducing system on a lot of an acre or less adds cost.
• Access. Long driveways, trees and slopes add equipment time.
• Fill dirt. Mound systems need loads of approved fill, often a large share of the bill.

The contractor you speak with will look at your lot and give a written quote before any work starts.

How long it takes

Plan on a few weeks from first call to a working system. The site evaluation and permit review take the most time. The physical install is often one to three days once the permit is issued, weather permitting. Ask about the timeline early if you are working against a closing or a builder's schedule.

Septic or sewer?

A few areas, including parts of Silver Springs Shores, are being moved from septic to county sewer, with grant money covering the connection. If sewer is available or planned for your street, a new septic system may not be allowed or may not make sense. Check with Marion County Utilities before you commit. Ready to price a new system? Call (352) 619-4030 for a free quote.

Frequently asked questions

Areas we serve

We connect callers across Marion County, including:

• Ocala
• Silver Springs Shores
• Marion Oaks
• Belleview
• Dunnellon
• Silver Springs
• Summerfield
• Reddick
• McIntosh
• Citra
• Fort McCoy
• Ocklawaha
• Weirsdale
• Rainbow Lakes Estates
• On Top of the World
• Marion County

Local pages: Silver Springs Shores, Belleview, Dunnellon.

Related septic services

• Septic Tank Replacement
• Drain Field Repair
• Septic Inspection
• Aerobic (ATU) Service