A new Title V compliant septic system in Massachusetts typically runs $25,000 to $50,000 or more. That range swings based on soil conditions, water table depth, lot size, the number of bedrooms in the house, and whether ledge is present in the leach field area.

Here is where the costs break down:

Perc test runs $750 to $1,500 in most North Shore and Merrimack Valley towns. The test is typically required before the septic design can begin. It involves digging test holes, saturating the soil, and measuring how fast water drains. Perc tests in Massachusetts are seasonal. Most towns only allow them during specific windows, usually spring through fall when the ground is not frozen. Plan for this early, because a missed perc test window can push a project back months.

Installation covers excavation, the tank, distribution box, leach field piping, and backfill. A conventional gravity-fed system on a cooperative lot sits at the lower end of the range. An engineered system with a pump chamber, raised leach field, or innovative/alternative technology pushes toward $40,000 to $50,000 or higher.

Massachusetts also offers a tax credit for septic system repairs or replacements. As of 2023, the credit covers 60% of design and construction costs, up to $4,000 per year and $18,000 total. That credit applies to failed systems being replaced under Title V, which matters if you are buying land with an existing structure and a septic system that does not pass inspection. As with all figures above, these are general estimates — actual costs depend on your site conditions and are confirmed during your project consultation.

Well drilling in Massachusetts and New Hampshire runs $32 to $72 per foot for the drilling itself. The average residential well depth in Massachusetts is around 270 feet, but wells on North Shore properties regularly go deeper. Granite bedrock across Essex County and the Merrimack Valley means the drill has to punch through hard crystalline rock to reach water-bearing fractures, and there is no guarantee of the depth until drilling is underway.

A complete well system, including drilling, steel casing, pump, pressure tank, electrical hookup, and permits, averages around $13,500 in Massachusetts. Deep wells through hard rock can push that number to $25,000 to $35,000 or more. New Hampshire well costs are similar, with typical depths of 300 to 600 feet in the granite bedrock that covers most of the southern part of the state.

Water quality testing is not optional. New England granite wells commonly produce water with elevated arsenic, radon, and manganese. A full water quality panel is required before drinking any bedrock well water, and treatment systems add $2,000 to $8,000 depending on what the testing reveals.

Permits are required. Massachusetts requires well drillers to hold a permit from MassDEP, and local Boards of Health issue well permits under state regulations. Budget $100 to $500 for permit fees.

If the lot has access to municipal water, the connection fee is typically $2,000 to $10,000 depending on the town and the distance from the main to the building. That is almost always less expensive than drilling a well, and it eliminates the ongoing maintenance and testing that comes with a private water supply.

But many buildable lots on the North Shore and in Southern New Hampshire sit outside municipal water districts. In those areas, a well is the only option. The decision is made by the property location, not by preference.

Land clearing on a wooded Massachusetts lot runs $3,000 to $8,000 per acre for most residential projects. Heavily forested lots with hardwoods like oak and maple, full stump removal, and debris hauling can push that to $12,000 or more per acre. Smaller lots under a half acre often cost more per acre because of equipment mobilization and fixed setup costs.

Grading and earthwork shapes the building pad and establishes drainage away from the foundation. On sloped lots, this can involve importing or exporting fill material, building retaining walls, and installing drainage systems. Budget $5,000 to $20,000 depending on how much earth needs to move.

Driveway and access costs depend on length and material. A gravel driveway to a rural lot costs less than a paved driveway with drainage and a turnaround. For properties with long setbacks from the road, driveway costs alone can run $10,000 to $30,000.

Utility trenching for electrical service, well lines, and septic connections adds $2,000 to $10,000 depending on distances and soil conditions. If the property sits far from the road or has ledge in the utility path, trenching costs climb quickly. All land clearing and site prep figures above are general estimates; actual pricing depends on the specific lot and will be detailed in your project quote.