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Pre-Construction Planning: What Happens Before You Break Ground
The most expensive custom home problems aren’t discovered during construction. They’re created before construction — in the decisions and assumptions made during planning. A missing soils report, a budget that didn’t account for site preparation costs, a design that hasn’t been reconciled with local zoning — these show up as change orders, schedule delays, and cost overruns months after ground is broken.
What the Pre-Construction Phase Covers
Pre-construction planning runs from your first serious conversation with a contractor through the signing of a construction contract and permit submission. It includes:
What are you building, where, and to what finish level? The scope drives the design, which drives the budget, which drives the contract.
Translates your program into construction documents: architectural drawings, structural calculations, mechanical and electrical engineering, and energy compliance documentation.
- Geotechnical evaluation — In the Willamette Valley, silty clay and seasonal drainage variability make a soils report consequential. In Central Oregon, pumice and volcanic soils near La Pine and parts of Bend require site-specific foundation design.
- Wetland delineation — Oregon DSL regulates fill in wetlands. Building within or near these areas requires permits beyond the standard building permit.
- Wildland-Urban Interface (WUI) review — For Bend-area lots in designated fire hazard zones, Oregon’s WUI codes require fire-resistant materials and specific defensible space. These affect material specification and cost before a single drawing is complete.
- DEQ septic evaluation — For rural lots not served by municipal sewer. Confirms whether your lot will support the home you’re planning.
The Budget Reconciliation Step Most People Skip
Design development and budget refinement should happen together, not sequentially. Designing a home and then pricing it is how projects go over budget. The budget at the end of pre-construction should include:
- Base construction cost, broken down by division
- Site work and utility costs specific to the lot
- Permit and SDC fees (in Bend, SDCs can add $20,000–$50,000 before breaking ground)
- Design and engineering fees
- Contingency — typically 10–15% for a well-defined scope, higher for sites with unusual conditions
The Construction Contract
Oregon residential construction contracts must meet ORS 701.305 requirements: written contracts for projects over $2,000 and written change orders for modifications above that threshold.
A complete construction contract specifies: scope of work, contract price, payment schedule, change order process, warranty, dispute resolution, and project schedule.
Before signing, confirm the contract includes:
- Clear description of included and excluded scope
- Payment milestones tied to construction benchmarks, not calendar dates
- A written change order requirement
- A 1-year minimum workmanship warranty
Why This Phase Deserves More Time Than Most Clients Give It
The construction phase is largely execution — if planning is thorough, the build proceeds with known quantities. Surprises almost always trace back to pre-construction.
Integra Built handles in-house design, drawings, and permitting, which means the pre-construction phase is a coordinated process rather than a set of parallel conversations with separate parties. We’ve been doing this in Salem, Bend, and surrounding communities since 2010. Oregon CCB #234-156.