If you’ve found land in Goochland, New Kent, Cumberland, or Hanover and you’re ready to start planning a house, there’s a step that has to happen before design goes very far: figuring out where your water comes from and where your waste goes.
In Central Virginia’s rural counties, most properties don’t have access to public water or sewer. That means a drilled well and a septic system — and both require county health department approval before you can pull a building permit. Getting this right early shapes where the house sits, how large the footprint can be, and whether the project is feasible at all.
The Perc Test Comes First
A percolation (perc) test evaluates how quickly water drains through the soil where your drainfield will go. Combined with a soil profile evaluation, it determines whether the site can support a septic system — and if so, how large the drainfield needs to be.
This is not a formality. Central Virginia clay soils, common in Goochland and parts of Hanover, can drain slowly enough to require engineered drainfield systems that cost significantly more than a conventional install. Some parcels fail entirely, which means you either can’t build on that land or need to find a spot on the lot where the soil actually percolates.
The soil evaluation needs to happen before you finalize a floor plan, because the drainfield location directly affects where the house can be placed.
Drainfield Sizing and Bedroom Count
Septic systems in Virginia are sized by bedroom count — more bedrooms means larger drainfield. A 3-bedroom home requires a primary drainfield plus a reserve area (held in case the primary field fails), which together can consume a significant portion of a smaller rural lot.
This is why lots that look spacious on paper sometimes have less buildable area than expected. Once you account for the well setback, drainfield footprint, reserve area, and the required separation distances between them, the zone where the house can actually go narrows considerably.
Well Drilling
Well drilling in Central Virginia runs roughly $8,500–$21,000 for most residential installs, depending on depth to adequate yield. Some parts of Goochland yield good water at 150–250 feet; other areas require going considerably deeper.
The well also has to meet minimum setbacks from the septic system and drainfield — typically 50–100 feet. In practice, the well ends up near the front of the property and the septic system toward the rear.
The County Health Department Process
In Virginia, the local health department — not the building department — has authority over well and septic permitting. The general sequence:
- Site evaluation. A licensed soil evaluator tests the soil and documents the site. Some counties use the health department’s own staff; others require a private certified soil scientist.
- System design and approval. A septic design is submitted for approval, specifying drainfield location, system type, and sizing.
- Construction permit and inspection. Once approved, a permit is issued for installation and inspected at completion.
Budget 6–12 weeks for the full health department process in Goochland, New Kent, Cumberland, or Hanover. Borderline sites or engineered systems run longer.
Start the Evaluation Early
If you’re building on rural land, start the soil evaluation as soon as the property is under contract — or make it a contingency before you close. The cost of the evaluation ($1,100–$3,500 typically) is minor relative to the risk of designing a house on land where the drainfield can’t go where you assumed.
River City Build Co handles new construction projects throughout Central Virginia, including Goochland County. We’re a Virginia Class A licensed design-build contractor (license #2705188410), and we build health department timelines into our project schedules — it’s not a surprise that derails things later.
Call us at (804) 525-9656 or reach out online to talk through a rural build.