Custom home progressing from framing to finished exterior
Project Insights · Custom Homes

Building a Custom Home on Your Own Lot: A Pre-Construction Checklist

The lot sets the budget before the floor plan does. Check these items before paying for full architectural plans.

Owning the lot is the start, not the finish line. Site conditions can add a large amount to a custom home budget before a single wall goes up. Checking them first protects the design budget and prevents redesign.

1. Soils and grading

A geotechnical (soils) report tells the engineer how to design the foundation. Expansive clay, fill or slopes change footing design and cost. Grading and drainage plans keep water away from the house for its whole life.

2. Utilities

Confirm where power, water, sewer or septic, and gas connect, and how far each must run. Long utility runs and transformer requirements are common budget surprises on rural and foothill parcels.

3. Well and septic on foothill lots

In Tuolumne and Calaveras counties many lots rely on a well and septic system. Well yield, water quality and percolation testing should be completed before design, because septic design and setbacks affect where the house can sit.

4. Fire-zone construction

Many foothill parcels fall in wildfire hazard areas where the California Building Code's wildland-urban interface requirements apply to roofing, vents, siding, decking and glazing. Designing for them from the start is cheaper than revising plans later.

5. Access and staging

Concrete trucks, lumber deliveries and equipment need a route in and room to stage. Steep or narrow access may require a temporary road improvement.

6. Budget sequencing

  1. Site feasibility and a budget range.
  2. Schematic design sized to that budget.
  3. Engineering, Title 24 energy compliance and construction documents.
  4. Itemized estimate and written contract.
  5. Permits, then construction with documented change orders.

We build custom homes across the Central Valley and Sierra foothills, from Oakdale and Modesto to Sonora, Angels Camp and Copperopolis.

Planning a project like this?

On Point Design Construction Inc. is a California licensed general contractor (CSLB #1105082) serving the Central Valley and Sierra foothills. Send the project details or call and you will get a written scope and an itemized estimate.

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